RE: Exchange 2010 Design Questions

2012-09-06 Thread Sobey, Richard A
Pretty sure it's that the various sizing calculators from Microsoft always base 
figures on physical/actual number of cores. When you introduce HT, you're not 
really giving yourself double the number of CPUs in raw performance, so any 
planning based on the calculators goes out the window.

We disable it on our servers, but only as the recommendation.

Richard

From: bounce-9546388-8066...@lyris.sunbelt-software.com 
[mailto:bounce-9546388-8066...@lyris.sunbelt-software.com] On Behalf Of Sean 
Martin
Sent: 06 September 2012 00:33
To: MS-Exchange Admin Issues
Subject: Exchange 2010 Design Questions

Hello all,

I'm a little more than a year removed from any real Exchange management but I 
am loosely involved with my company's re-vitalized effort to migrate from 
Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite to 
assist with a high-level design for our environment. One of the recommendations 
kind of threw me for a loop and I wanted to get some feedback from those of you 
running Exchange 2010.

Disable Hyper-threading - 
http://technet.microsoft.com/en-us/library/dd346699.aspx: The article states:

Hyperthreading causes capacity planning and monitoring challenges, and as a 
result, the expected gain in CPU overhead is likely not justified. 
Hyperthreading should be disabled by default for production Exchange servers 
and only enabled if absolutely necessary as a temporary measure to increase CPU 
capacity until additional hardware can be obtained.

What capacity planning and monitoring challenges are introduced? We've been 
running hyper-threaded multi-core servers for many, many years and I can't 
think of any challenges that were introduced. Is there a specific scenario I'm 
not thinking about that is specific to Exchange capacity planning or monitoring?
FWIW, we have 6 physical servers which will be evenly distributed between two 
active sites based on the latest design. Servers are Dell PowerEdge M610 blade 
servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs* connecting to 
Compellent Storage.

*3 servers at one site will actually leverage infiniband (4x40GB) connectivity 
to Xsigo directors which will distribute vHBAs and vNICs.

Any insight would be appreciated.

- Sean



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RE: Exchange 2010 Design Questions

2012-09-06 Thread Michael B. Smith
http://blogs.technet.com/b/jeff_stokes/archive/2010/09/15/to-hyper-thread-or-not-that-is-the-question.aspx

The issue with HT is that, since it is scheduled as separate processor, but 
doesn't have unique cache assigned to it, in certain memory intensive 
operations it can cause reduced performance.

From: Steve Goodman [mailto:st...@stevieg.org]
Sent: Thursday, September 6, 2012 6:20 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 Design Questions

I agree with Richard - the capacity planning challenge is that the number of 
cores from the calculator doesn't differentiate between HT cores and normal 
cores.  So your design is going to be for actual cores and in expected peak 
usage you gain little from have the HT features enabled.

Steve

From: Sobey, Richard A 
[mailto:r.so...@imperial.ac.uk]mailto:[mailto:r.so...@imperial.ac.uk]
Sent: 06 September 2012 10:30
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 Design Questions

Pretty sure it's that the various sizing calculators from Microsoft always base 
figures on physical/actual number of cores. When you introduce HT, you're not 
really giving yourself double the number of CPUs in raw performance, so any 
planning based on the calculators goes out the window.

We disable it on our servers, but only as the recommendation.

Richard

From: 
bounce-9546388-8066...@lyris.sunbelt-software.commailto:bounce-9546388-8066...@lyris.sunbelt-software.com
 
[mailto:bounce-9546388-8066...@lyris.sunbelt-software.com]mailto:[mailto:bounce-9546388-8066...@lyris.sunbelt-software.com]
 On Behalf Of Sean Martin
Sent: 06 September 2012 00:33
To: MS-Exchange Admin Issues
Subject: Exchange 2010 Design Questions

Hello all,

I'm a little more than a year removed from any real Exchange management but I 
am loosely involved with my company's re-vitalized effort to migrate from 
Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite to 
assist with a high-level design for our environment. One of the recommendations 
kind of threw me for a loop and I wanted to get some feedback from those of you 
running Exchange 2010.

Disable Hyper-threading - 
http://technet.microsoft.com/en-us/library/dd346699.aspx: The article states:

Hyperthreading causes capacity planning and monitoring challenges, and as a 
result, the expected gain in CPU overhead is likely not justified. 
Hyperthreading should be disabled by default for production Exchange servers 
and only enabled if absolutely necessary as a temporary measure to increase CPU 
capacity until additional hardware can be obtained.

What capacity planning and monitoring challenges are introduced? We've been 
running hyper-threaded multi-core servers for many, many years and I can't 
think of any challenges that were introduced. Is there a specific scenario I'm 
not thinking about that is specific to Exchange capacity planning or monitoring?
FWIW, we have 6 physical servers which will be evenly distributed between two 
active sites based on the latest design. Servers are Dell PowerEdge M610 blade 
servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs* connecting to 
Compellent Storage.

*3 servers at one site will actually leverage infiniband (4x40GB) connectivity 
to Xsigo directors which will distribute vHBAs and vNICs.

Any insight would be appreciated.

- Sean



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Re: Exchange 2010 Design Questions

2012-09-06 Thread Sean Martin
Thanks for the responses. I can appreciate the technical reasoning that
Michael pointed out, but I'm also curious if this reasoning holds true with
current Westmere or Sandy Bridge chipsets.

In regards to the recommendation from Microsoft, it comes across as if they
don't trust the person implementing Exchange to know their own hardware.
Almost as if they picture someone opening task manager and determining they
have 24 processors because that's how many they see.

Anyway, thanks again for the insight. I believe our hardware configuration
provides more than enough processing power for our environment so we'll
probably just stick with the recommendation.

- Sean

On Thu, Sep 6, 2012 at 5:26 AM, Michael B. Smith mich...@smithcons.comwrote:


 http://blogs.technet.com/b/jeff_stokes/archive/2010/09/15/to-hyper-thread-or-not-that-is-the-question.aspx
 

 ** **

 The issue with HT is that, since it is scheduled as separate processor,
 but doesn’t have unique cache assigned to it, in certain memory intensive
 operations it can cause reduced performance.

 ** **

 *From:* Steve Goodman [mailto:st...@stevieg.org]
 *Sent:* Thursday, September 6, 2012 6:20 AM

 *To:* MS-Exchange Admin Issues
 *Subject:* RE: Exchange 2010 Design Questions

  ** **

 I agree with Richard – the “capacity planning challenge” is that the
 number of cores from the calculator doesn’t differentiate between HT cores
 and normal cores.  So your design is going to be for actual cores and in
 expected peak usage you gain little from have the HT features enabled.

 ** **

 Steve

 ** **

 *From:* Sobey, Richard A [mailto:r.so...@imperial.ac.uk]
 *Sent:* 06 September 2012 10:30
 *To:* MS-Exchange Admin Issues
 *Subject:* RE: Exchange 2010 Design Questions

 ** **

 Pretty sure it’s that the various sizing calculators from Microsoft always
 base figures on physical/actual number of cores. When you introduce HT,
 you’re not really giving yourself double the number of CPUs in raw
 performance, so any planning based on the calculators goes out the window.
 

 ** **

 We disable it on our servers, but only as the recommendation.

 ** **

 Richard

 ** **

 *From:* bounce-9546388-8066...@lyris.sunbelt-software.com
 [mailto:bounce-9546388-8066...@lyris.sunbelt-software.com] *On Behalf Of *Sean
 Martin
 *Sent:* 06 September 2012 00:33
 *To:* MS-Exchange Admin Issues
 *Subject:* Exchange 2010 Design Questions

 ** **

 Hello all,

  

 I'm a little more than a year removed from any real Exchange management
 but I am loosely involved with my company's re-vitalized effort to migrate
 from Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite
 to assist with a high-level design for our environment. One of the
 recommendations kind of threw me for a loop and I wanted to get some
 feedback from those of you running Exchange 2010. 

  

 Disable Hyper-threading -
 http://technet.microsoft.com/en-us/library/dd346699.aspx: The article
 states: 

  

 *Hyperthreading causes capacity planning and monitoring challenges, and
 as a result, the expected gain in CPU overhead is likely not justified.
 Hyperthreading should be disabled by default for production Exchange
 servers and only enabled if absolutely necessary as a temporary measure to
 increase CPU capacity until additional hardware can be obtained.* 

  

 What capacity planning and monitoring challenges are introduced? We've
 been running hyper-threaded multi-core servers for many, many years and I
 can't think of any challenges that were introduced. Is there a specific
 scenario I'm not thinking about that is specific to Exchange capacity
 planning or monitoring?

 FWIW, we have 6 physical servers which will be evenly distributed between
 two active sites based on the latest design. Servers are Dell PowerEdge
 M610 blade servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs*
 connecting to Compellent Storage. 

  

 *3 servers at one site will actually leverage infiniband (4x40GB)
 connectivity to Xsigo directors which will distribute vHBAs and vNICs.

  

 Any insight would be appreciated.

  

 - Sean

  

  

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Re: Exchange 2010 Design Questions

2012-09-06 Thread Sean Martin
Thanks for the feedback. We'resupporting just over 2000 mailboxes in this
environment so we felt memory configurations were sufficient.

- Sean

On Wed, Sep 5, 2012 at 5:14 PM, pramatow...@mediageneral.com wrote:

 We have 6500 mbx, ~2G worth in them, 6 servers in two sites, 3 active DB's
 on each server, each DB had a copy local and a copy in the cross-site (hope
 that makes sense). Avg mbx 250mb, range from a couple mb to 10G. The
 smaller mbx's are throwaways, the larger are generic shared mbx's.
 Virtually all are running in cached mode, 2K3, 2K7 with a smattering of
 2K10 clients. Probably 4500 clients are at the far end of dual or quad T1's
 with a cable modem B/U, QOS on all the links so mail gets at most 40-50%.
 Intra site is 10G, intra site is 250-300Mb (I think)

 That's a bit of background, the servers are Dell 510's , dual 6 core procs
 hyperthreaded so 24 cores each server. (2.66 Xeon fwiw) kicker? Each DB
 and logs for each DB are on a 7500 rpm drive (circular logging) eek.

 Have never had an issue with cpu in that config. Saw things that
 recommended turning off hyperthreading, was ready to do so if necessary but
 looking at day to day ops, maintenance, us running scripts, doing junk on a
 server, it just never was necessary.

 Now the only thing I'd wonder is your memory- we're at 48G in each server,
 not sure if 24 would work for us.

 Ymmv.

 Blackberry

 *From*: Sean Martin [mailto:seanmarti...@gmail.com]
 *Sent*: Wednesday, September 05, 2012 07:32 PM
 *To*: MS-Exchange Admin Issues exchangelist@lyris.sunbelt-software.com
 *Subject*: Exchange 2010 Design Questions

  Hello all,

 I'm a little more than a year removed from any real Exchange management
 but I am loosely involved with my company's re-vitalized effort to migrate
 from Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite
 to assist with a high-level design for our environment. One of the
 recommendations kind of threw me for a loop and I wanted to get some
 feedback from those of you running Exchange 2010.

 Disable Hyper-threading -
 http://technet.microsoft.com/en-us/library/dd346699.aspx: The article
 states:

 *Hyperthreading causes capacity planning and monitoring challenges, and
 as a result, the expected gain in CPU overhead is likely not justified.
 Hyperthreading should be disabled by default for production Exchange
 servers and only enabled if absolutely necessary as a temporary measure to
 increase CPU capacity until additional hardware can be obtained.*

 What capacity planning and monitoring challenges are introduced? We've
 been running hyper-threaded multi-core servers for many, many years and I
 can't think of any challenges that were introduced. Is there a specific
 scenario I'm not thinking about that is specific to Exchange capacity
 planning or monitoring?
 FWIW, we have 6 physical servers which will be evenly distributed between
 two active sites based on the latest design. Servers are Dell PowerEdge
 M610 blade servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs*
 connecting to Compellent Storage.

 *3 servers at one site will actually leverage infiniband (4x40GB)
 connectivity to Xsigo directors which will distribute vHBAs and vNICs.

 Any insight would be appreciated.

 - Sean



 ---
 To manage subscriptions click here:
 http://lyris.sunbelt-software.com/read/my_forums/
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 with the body: unsubscribe exchangelist

 ---
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Re: Exchange 2010 Design Questions

2012-09-06 Thread PRamatowski
Ah. Yeah, I posted all that excess just to say what we had, how it was 
configured, and so on. I understand the reasoning behind not using HT (and know 
I don't
*have* 24 procs). Just lucky enough that we never ran into problems using it 
configured that way:)
Cheers,
Paul

Blackberry

From: Sean Martin [mailto:seanmarti...@gmail.com]
Sent: Thursday, September 06, 2012 11:18 AM
To: MS-Exchange Admin Issues exchangelist@lyris.sunbelt-software.com
Subject: Re: Exchange 2010 Design Questions

Thanks for the feedback. We'resupporting just over 2000 mailboxes in this 
environment so we felt memory configurations were sufficient.

- Sean

On Wed, Sep 5, 2012 at 5:14 PM, 
pramatow...@mediageneral.commailto:pramatow...@mediageneral.com wrote:
We have 6500 mbx, ~2G worth in them, 6 servers in two sites, 3 active DB's on 
each server, each DB had a copy local and a copy in the cross-site (hope that 
makes sense). Avg mbx 250mb, range from a couple mb to 10G. The smaller mbx's 
are throwaways, the larger are generic shared mbx's. Virtually all are running 
in cached mode, 2K3, 2K7 with a smattering of 2K10 clients. Probably 4500 
clients are at the far end of dual or quad T1's with a cable modem B/U, QOS on 
all the links so mail gets at most 40-50%. Intra site is 10G, intra site is 
250-300Mb (I think)

That's a bit of background, the servers are Dell 510's , dual 6 core procs 
hyperthreaded so 24 cores each server. (2.66 Xeon fwiw) kicker? Each DB and 
logs for each DB are on a 7500 rpm drive (circular logging) eek.

Have never had an issue with cpu in that config. Saw things that recommended 
turning off hyperthreading, was ready to do so if necessary but looking at day 
to day ops, maintenance, us running scripts, doing junk on a server, it just 
never was necessary.

Now the only thing I'd wonder is your memory- we're at 48G in each server, not 
sure if 24 would work for us.

Ymmv.

Blackberry

From: Sean Martin [mailto:seanmarti...@gmail.commailto:seanmarti...@gmail.com]
Sent: Wednesday, September 05, 2012 07:32 PM
To: MS-Exchange Admin Issues 
exchangelist@lyris.sunbelt-software.commailto:exchangelist@lyris.sunbelt-software.com
Subject: Exchange 2010 Design Questions

Hello all,

I'm a little more than a year removed from any real Exchange management but I 
am loosely involved with my company's re-vitalized effort to migrate from 
Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite to 
assist with a high-level design for our environment. One of the recommendations 
kind of threw me for a loop and I wanted to get some feedback from those of you 
running Exchange 2010.

Disable Hyper-threading - 
http://technet.microsoft.com/en-us/library/dd346699.aspx: The article states:

Hyperthreading causes capacity planning and monitoring challenges, and as a 
result, the expected gain in CPU overhead is likely not justified. 
Hyperthreading should be disabled by default for production Exchange servers 
and only enabled if absolutely necessary as a temporary measure to increase CPU 
capacity until additional hardware can be obtained.

What capacity planning and monitoring challenges are introduced? We've been 
running hyper-threaded multi-core servers for many, many years and I can't 
think of any challenges that were introduced. Is there a specific scenario I'm 
not thinking about that is specific to Exchange capacity planning or monitoring?
FWIW, we have 6 physical servers which will be evenly distributed between two 
active sites based on the latest design. Servers are Dell PowerEdge M610 blade 
servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs* connecting to 
Compellent Storage.

*3 servers at one site will actually leverage infiniband (4x40GB) connectivity 
to Xsigo directors which will distribute vHBAs and vNICs.

Any insight would be appreciated.

- Sean



---
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Re: Exchange 2010 Design Questions

2012-09-05 Thread PRamatowski
We have 6500 mbx, ~2G worth in them, 6 servers in two sites, 3 active DB's on 
each server, each DB had a copy local and a copy in the cross-site (hope that 
makes sense). Avg mbx 250mb, range from a couple mb to 10G. The smaller mbx's 
are throwaways, the larger are generic shared mbx's. Virtually all are running 
in cached mode, 2K3, 2K7 with a smattering of 2K10 clients. Probably 4500 
clients are at the far end of dual or quad T1's with a cable modem B/U, QOS on 
all the links so mail gets at most 40-50%. Intra site is 10G, intra site is 
250-300Mb (I think)

That's a bit of background, the servers are Dell 510's , dual 6 core procs 
hyperthreaded so 24 cores each server. (2.66 Xeon fwiw) kicker? Each DB and 
logs for each DB are on a 7500 rpm drive (circular logging) eek.

Have never had an issue with cpu in that config. Saw things that recommended 
turning off hyperthreading, was ready to do so if necessary but looking at day 
to day ops, maintenance, us running scripts, doing junk on a server, it just 
never was necessary.

Now the only thing I'd wonder is your memory- we're at 48G in each server, not 
sure if 24 would work for us.

Ymmv.

Blackberry

From: Sean Martin [mailto:seanmarti...@gmail.com]
Sent: Wednesday, September 05, 2012 07:32 PM
To: MS-Exchange Admin Issues exchangelist@lyris.sunbelt-software.com
Subject: Exchange 2010 Design Questions

Hello all,

I'm a little more than a year removed from any real Exchange management but I 
am loosely involved with my company's re-vitalized effort to migrate from 
Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite to 
assist with a high-level design for our environment. One of the recommendations 
kind of threw me for a loop and I wanted to get some feedback from those of you 
running Exchange 2010.

Disable Hyper-threading - 
http://technet.microsoft.com/en-us/library/dd346699.aspx: The article states:

Hyperthreading causes capacity planning and monitoring challenges, and as a 
result, the expected gain in CPU overhead is likely not justified. 
Hyperthreading should be disabled by default for production Exchange servers 
and only enabled if absolutely necessary as a temporary measure to increase CPU 
capacity until additional hardware can be obtained.

What capacity planning and monitoring challenges are introduced? We've been 
running hyper-threaded multi-core servers for many, many years and I can't 
think of any challenges that were introduced. Is there a specific scenario I'm 
not thinking about that is specific to Exchange capacity planning or monitoring?
FWIW, we have 6 physical servers which will be evenly distributed between two 
active sites based on the latest design. Servers are Dell PowerEdge M610 blade 
servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs* connecting to 
Compellent Storage.

*3 servers at one site will actually leverage infiniband (4x40GB) connectivity 
to Xsigo directors which will distribute vHBAs and vNICs.

Any insight would be appreciated.

- Sean



---
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Re: Exchange 2010 Design Questions

2012-09-05 Thread PRamatowski
I meant ~2Tb data in there (first line).

Blackberry

From: Ramatowski, Paul M.
Sent: Wednesday, September 05, 2012 09:14 PM
To: MS-Exchange Admin Issues exchangelist@lyris.sunbelt-software.com
Subject: Re: Exchange 2010 Design Questions

We have 6500 mbx, ~2G worth in them, 6 servers in two sites, 3 active DB's on 
each server, each DB had a copy local and a copy in the cross-site (hope that 
makes sense). Avg mbx 250mb, range from a couple mb to 10G. The smaller mbx's 
are throwaways, the larger are generic shared mbx's. Virtually all are running 
in cached mode, 2K3, 2K7 with a smattering of 2K10 clients. Probably 4500 
clients are at the far end of dual or quad T1's with a cable modem B/U, QOS on 
all the links so mail gets at most 40-50%. Intra site is 10G, intra site is 
250-300Mb (I think)

That's a bit of background, the servers are Dell 510's , dual 6 core procs 
hyperthreaded so 24 cores each server. (2.66 Xeon fwiw) kicker? Each DB and 
logs for each DB are on a 7500 rpm drive (circular logging) eek.

Have never had an issue with cpu in that config. Saw things that recommended 
turning off hyperthreading, was ready to do so if necessary but looking at day 
to day ops, maintenance, us running scripts, doing junk on a server, it just 
never was necessary.

Now the only thing I'd wonder is your memory- we're at 48G in each server, not 
sure if 24 would work for us.

Ymmv.

Blackberry

From: Sean Martin [mailto:seanmarti...@gmail.com]
Sent: Wednesday, September 05, 2012 07:32 PM
To: MS-Exchange Admin Issues exchangelist@lyris.sunbelt-software.com
Subject: Exchange 2010 Design Questions

Hello all,

I'm a little more than a year removed from any real Exchange management but I 
am loosely involved with my company's re-vitalized effort to migrate from 
Exchange 2003 to Exchange 2010. We recently had an Exchange PFE onsite to 
assist with a high-level design for our environment. One of the recommendations 
kind of threw me for a loop and I wanted to get some feedback from those of you 
running Exchange 2010.

Disable Hyper-threading - 
http://technet.microsoft.com/en-us/library/dd346699.aspx: The article states:

Hyperthreading causes capacity planning and monitoring challenges, and as a 
result, the expected gain in CPU overhead is likely not justified. 
Hyperthreading should be disabled by default for production Exchange servers 
and only enabled if absolutely necessary as a temporary measure to increase CPU 
capacity until additional hardware can be obtained.

What capacity planning and monitoring challenges are introduced? We've been 
running hyper-threaded multi-core servers for many, many years and I can't 
think of any challenges that were introduced. Is there a specific scenario I'm 
not thinking about that is specific to Exchange capacity planning or monitoring?
FWIW, we have 6 physical servers which will be evenly distributed between two 
active sites based on the latest design. Servers are Dell PowerEdge M610 blade 
servers with dual 6-core procs, 24GB memory, QLogic 8GB HBAs* connecting to 
Compellent Storage.

*3 servers at one site will actually leverage infiniband (4x40GB) connectivity 
to Xsigo directors which will distribute vHBAs and vNICs.

Any insight would be appreciated.

- Sean



---
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RE: Exchange 2010 design

2011-06-19 Thread Eric Wittersheim

Sent from my LG phone

pramatow...@mediageneral.com pramatow...@mediageneral.com wrote:

We went WNLB for a couple of reasons- $ and it was supported happily  for our 
size/needs.  Pretty sure it still is but MS doesn't seem to like it nearly as 
much as they used to-I'd guess based on real world experience?  Today,  those 
size/needs would steer towards HLB.



IIRC it was a pain for us to set up and get going properly- whether that was 
WNLB, me, or just all the #$^! that was going on at the time, I dunno. Once it 
was going I guess it LB's well enough as long as all the boxes were up. not 
that it was a regular occurrence by any means but if we lost/had to reboot a 
box it did screw with all the connections on that box. Had to fiddle with 
patching too (drainstopping etc) but so it goes.

Also unless we missed something obvious, the only health checking you have is 
basically a ping test, HLB goes past that.



Stuff I've done resulting in 0 client complaints-

Pulled power on the active Kemp

Rebooted a CAS

Powered down CAS



My other response in this thread I rated at .0002 Paul Cents. This one I'll 
rate at a full .02 PC- Given you're going there anyway, get the network guys to 
make their decision and skip WNLB altogether:)



Paul



From: sms adm [sms...@gmail.com]
Sent: Friday, June 17, 2011 4:35 PM
To: MS-Exchange Admin Issues
Subject: Re: Exchange 2010 design

How reliable was your WNLB?
We're planning to do the same ... start with WNLB and move to HW NLB when our 
network guys decide what they will buy and when.

Thx in advance

On Fri, Jun 17, 2011 at 3:58 PM, 
pramatow...@mediageneral.commailto:pramatow...@mediageneral.com wrote:

Been running E2010 for a year now- We’re getting rid of WNLB, putting four Kemp 
loadmaster 2200’s into place, a high availability pair in each AD site Did one 
site yesterday, the other is planned for next week.We’re ~7K mailboxes with 
2 real mbx/hub and 3 virtual cas in each site. ~1400 BB’s, few hundred EAS devs.

Are you stuck on F5 for some reason?   Not that I have any long experience with 
Kemp or anything but they seem to be pretty nice boxes for a very reasonable 
price…



From: Ryan Finnesey 
[mailto:ryan.finne...@harrierinvestments.commailto:ryan.finne...@harrierinvestments.com]
Sent: Friday, June 17, 2011 1:21 PM

To: MS-Exchange Admin Issues
Cc: neil.hob...@microsoft.commailto:neil.hob...@microsoft.com

Subject: RE: Exchange 2010 design

I need to do something very similar I need to decide if we want to use hardware 
from F5 or use NLB for an Exchange 2010 deployment.  Thank you for the helpful 
links.

Cheers
Ryan


From: Neil Hobson 
[mailto:neil.hob...@microsoft.commailto:neil.hob...@microsoft.com]
Sent: Monday, June 13, 2011 10:30 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

In addition to what Phil said in his reply, for a good overview of the load 
balancing options I’d recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here’s the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.ukmailto:l...@cem.dur.ac.uk]
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,

I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?

Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?

Thanks for any advice!

Laurence










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RE: Exchange 2010 design

2011-06-18 Thread Ryan Finnesey
No we are not stuck on F5 at all, we are looking at them first because
of the very good relationship F5 has with Microsoft.

 

Cheers

Ryan

 

 

From: pramatow...@mediageneral.com [mailto:pramatow...@mediageneral.com]

Sent: Friday, June 17, 2011 3:59 PM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

 

 

Been running E2010 for a year now- We're getting rid of WNLB, putting
four Kemp loadmaster 2200's into place, a high availability pair in each
AD site Did one site yesterday, the other is planned for next week.
We're ~7K mailboxes with 2 real mbx/hub and 3 virtual cas in each site.
~1400 BB's, few hundred EAS devs.

 

Are you stuck on F5 for some reason?   Not that I have any long
experience with Kemp or anything but they seem to be pretty nice boxes
for a very reasonable price...

 

 

 

From: Ryan Finnesey [mailto:ryan.finne...@harrierinvestments.com] 
Sent: Friday, June 17, 2011 1:21 PM
To: MS-Exchange Admin Issues
Cc: neil.hob...@microsoft.com
Subject: RE: Exchange 2010 design

 

I need to do something very similar I need to decide if we want to use
hardware from F5 or use NLB for an Exchange 2010 deployment.  Thank you
for the helpful links.

 

Cheers

Ryan

 

 

From: Neil Hobson [mailto:neil.hob...@microsoft.com] 
Sent: Monday, June 13, 2011 10:30 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

 

In addition to what Phil said in his reply, for a good overview of the
load balancing options I'd recommend reading this topic :
http://technet.microsoft.com/en-us/library/ff625247.aspx

 

FYI, if you go down the hardware load balancer route, here's the page
that lists the hardware load balancers that have completed solution
testing with Exchange 2010 :
http://technet.microsoft.com/en-us/exchange/gg176682.aspx

 

HTH,

 

Neil

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

 

Hi Everyone,

 

I'm a bit new to this so my apologies if I've not understood something
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100
users, average mailbox size 500MB) and am looking at using two servers
with CAS, HT and Mailbox roles installed on both and using DAG for high
availability. I was thinking of using Windows NLB for load balancing,but
have read that this can't be used with DAG
(http://technet.microsoft.com/en-us/library/dd979781.aspx). My question
is, if I set up two additional servers with NLB installed and moved the
CAS and HT roles to them, would this solution then provide the load
balancing I'm looking for?

 

Alternatively, would I be better off with two highly redundant servers
and use one for Mailbox and one for CAS and HT?

 

Thanks for any advice!

 

Laurence

 

 

 

 

 

 

 

 

 

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RE: Exchange 2010 design

2011-06-18 Thread PRamatowski
Ah.   We've got some F5 gear too (not mine to touch) but they were too pricy 
for this project.   Kemp's on the approved list too, and the price was right.



Our network guy opened a case with them asking about one arm vs. two arm setup. 
fairly basic but we wanted to do it right the first time. Quick to respond, 
right on time with the explanations and answers. Documentation (for me anyway) 
was nice, setup is straightforward, they're working as advertised. Maybe it's 
the same with all of them. I don't know- this is my first hands on with these 
hardware bits. My .0002 is if they fit your need they're worth the look:)



Paul






From: Ryan Finnesey [ryan.finne...@harrierinvestments.com]
Sent: Saturday, June 18, 2011 2:39 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

No we are not stuck on F5 at all, we are looking at them first because of the 
very good relationship F5 has with Microsoft.

Cheers
Ryan


From: pramatow...@mediageneral.com [mailto:pramatow...@mediageneral.com]
Sent: Friday, June 17, 2011 3:59 PM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design


Been running E2010 for a year now- We’re getting rid of WNLB, putting four Kemp 
loadmaster 2200’s into place, a high availability pair in each AD site Did one 
site yesterday, the other is planned for next week.We’re ~7K mailboxes with 
2 real mbx/hub and 3 virtual cas in each site. ~1400 BB’s, few hundred EAS devs.

Are you stuck on F5 for some reason?   Not that I have any long experience with 
Kemp or anything but they seem to be pretty nice boxes for a very reasonable 
price…



From: Ryan Finnesey [mailto:ryan.finne...@harrierinvestments.com]
Sent: Friday, June 17, 2011 1:21 PM
To: MS-Exchange Admin Issues
Cc: neil.hob...@microsoft.com
Subject: RE: Exchange 2010 design

I need to do something very similar I need to decide if we want to use hardware 
from F5 or use NLB for an Exchange 2010 deployment.  Thank you for the helpful 
links.

Cheers
Ryan


From: Neil Hobson [mailto:neil.hob...@microsoft.com]
Sent: Monday, June 13, 2011 10:30 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

In addition to what Phil said in his reply, for a good overview of the load 
balancing options I’d recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here’s the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk]
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,

I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?

Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?

Thanks for any advice!

Laurence










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RE: Exchange 2010 design

2011-06-18 Thread PRamatowski
We went WNLB for a couple of reasons- $ and it was supported happily  for our 
size/needs.  Pretty sure it still is but MS doesn't seem to like it nearly as 
much as they used to-I'd guess based on real world experience?  Today,  those 
size/needs would steer towards HLB.



IIRC it was a pain for us to set up and get going properly- whether that was 
WNLB, me, or just all the #$^! that was going on at the time, I dunno. Once it 
was going I guess it LB's well enough as long as all the boxes were up. not 
that it was a regular occurrence by any means but if we lost/had to reboot a 
box it did screw with all the connections on that box. Had to fiddle with 
patching too (drainstopping etc) but so it goes.

Also unless we missed something obvious, the only health checking you have is 
basically a ping test, HLB goes past that.



Stuff I've done resulting in 0 client complaints-

Pulled power on the active Kemp

Rebooted a CAS

Powered down CAS



My other response in this thread I rated at .0002 Paul Cents. This one I'll 
rate at a full .02 PC- Given you're going there anyway, get the network guys to 
make their decision and skip WNLB altogether:)



Paul



From: sms adm [sms...@gmail.com]
Sent: Friday, June 17, 2011 4:35 PM
To: MS-Exchange Admin Issues
Subject: Re: Exchange 2010 design

How reliable was your WNLB?
We're planning to do the same ... start with WNLB and move to HW NLB when our 
network guys decide what they will buy and when.

Thx in advance

On Fri, Jun 17, 2011 at 3:58 PM, 
pramatow...@mediageneral.commailto:pramatow...@mediageneral.com wrote:

Been running E2010 for a year now- We’re getting rid of WNLB, putting four Kemp 
loadmaster 2200’s into place, a high availability pair in each AD site Did one 
site yesterday, the other is planned for next week.We’re ~7K mailboxes with 
2 real mbx/hub and 3 virtual cas in each site. ~1400 BB’s, few hundred EAS devs.

Are you stuck on F5 for some reason?   Not that I have any long experience with 
Kemp or anything but they seem to be pretty nice boxes for a very reasonable 
price…



From: Ryan Finnesey 
[mailto:ryan.finne...@harrierinvestments.commailto:ryan.finne...@harrierinvestments.com]
Sent: Friday, June 17, 2011 1:21 PM

To: MS-Exchange Admin Issues
Cc: neil.hob...@microsoft.commailto:neil.hob...@microsoft.com

Subject: RE: Exchange 2010 design

I need to do something very similar I need to decide if we want to use hardware 
from F5 or use NLB for an Exchange 2010 deployment.  Thank you for the helpful 
links.

Cheers
Ryan


From: Neil Hobson 
[mailto:neil.hob...@microsoft.commailto:neil.hob...@microsoft.com]
Sent: Monday, June 13, 2011 10:30 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

In addition to what Phil said in his reply, for a good overview of the load 
balancing options I’d recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here’s the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.ukmailto:l...@cem.dur.ac.uk]
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,

I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?

Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?

Thanks for any advice!

Laurence










---
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RE: Exchange 2010 design

2011-06-17 Thread Laurence Bryant
Thanks for the replies, they set me off on a lot of reading. Unfortunatly
I've been told that a hardware load balancer is out of the question at the
moment, but I did find this link for a highly available 500 mailbox design
(http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0e93251-fc04-4
a18-8aa0-23817b6d0c97
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0e93251-fc04-4
a18-8aa0-23817b6d0c97 ) in my list archive, for an MS white paper which
seems to describe an implementation that would fit with what I've been
required to do.
 
My only question would be, how real world are these white papers, if I
followed a similar route would I end up with a practical solution?
Thanks again,

Laurence

 
  _  

From: Neil Hobson [mailto:neil.hob...@microsoft.com] 
Sent: 13 June 2011 15:30
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design



In addition to what Phil said in his reply, for a good overview of the load
balancing options I'd recommend reading this topic :
http://technet.microsoft.com/en-us/library/ff625247.aspx
http://technet.microsoft.com/en-us/library/ff625247.aspx 

 

FYI, if you go down the hardware load balancer route, here's the page that
lists the hardware load balancers that have completed solution testing with
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx
http://technet.microsoft.com/en-us/exchange/gg176682.aspx 

 

HTH,

 

Neil

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

 

Hi Everyone,

 

I'm a bit new to this so my apologies if I've not understood something
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100
users, average mailbox size 500MB) and am looking at using two servers with
CAS, HT and Mailbox roles installed on both and using DAG for high
availability. I was thinking of using Windows NLB for load balancing,but
have read that this can't be used with DAG
(http://technet.microsoft.com/en-us/library/dd979781.aspx
http://technet.microsoft.com/en-us/library/dd979781.aspx ). My question
is, if I set up two additional servers with NLB installed and moved the CAS
and HT roles to them, would this solution then provide the load balancing
I'm looking for?

 

Alternatively, would I be better off with two highly redundant servers and
use one for Mailbox and one for CAS and HT?

 

Thanks for any advice!

 

Laurence

 

 

 

 

 

 

 

 

 

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RE: Exchange 2010 design

2011-06-17 Thread Rupprecht, James R
*Disclaimer* I have not tried running NLB in my Exchange 2010 environment.

I used NLB in my Exchange 2003 environment and it performed quite well. I have 
70,000 mailboxes (and a very heavy non-MAPI user profile) and used NLB on my 3 
front-end servers to load-balance OWA, OMA, IMAP, POP, and authenticated SMTP 
traffic. The solution was in place 4 years and worked flawlessly to the end.

-jim

James Rupprecht
The University of Kansas
Exchange/Active Directory Administrator


From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: Friday, June 17, 2011 10:55 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

Thanks for the replies, they set me off on a lot of reading. Unfortunatly I've 
been told that a hardware load balancer is out of the question at the moment, 
but I did find this link for a highly available 500 
mailbox design (http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0e93251-fc04-4a18-8aa0-23817b6d0c97) in
 my list archive, for an MS white paper which seems to describe an 
implementation that would fit with what I've been required to do.
 
My only question would be, how real world are these white papers, if I 
followed a similar route would I end up with a practical solution?
Thanks again,
Laurence
 

From: Neil Hobson [mailto:neil.hob...@microsoft.com] 
Sent: 13 June 2011 15:30
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design
In addition to what Phil said in his reply, for a good overview of the load 
balancing options I'd recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here's the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,
 
I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?
 
Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?
 
Thanks for any advice!
 
Laurence
 
 
 
 
 
 
 
 
 
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RE: Exchange 2010 design

2011-06-17 Thread Damien Solodow
That looks like a good paper, and the solution looks appropriate.
One thing to make sure you're aware of when using NLB; you can't have NLB and 
Windows Clustering on the same server. So if you are using NLB for your CAS and 
you think you may want to use DAG for your mailbox server(s), the roles will 
have to be on separate servers.

DAMIEN SOLODOW
Systems Engineer
317.447.6033 (office)
317.447.6014 (fax)
HARRISON COLLEGE

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk]
Sent: Friday, June 17, 2011 11:55 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

Thanks for the replies, they set me off on a lot of reading. Unfortunatly I've 
been told that a hardware load balancer is out of the question at the moment, 
but I did find this link for a highly available 500 mailbox design 
(http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0e93251-fc04-4a18-8aa0-23817b6d0c97)
 in my list archive, for an MS white paper which seems to describe an 
implementation that would fit with what I've been required to do.

My only question would be, how real world are these white papers, if I 
followed a similar route would I end up with a practical solution?

Thanks again,

Laurence


From: Neil Hobson [mailto:neil.hob...@microsoft.com]
Sent: 13 June 2011 15:30
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design
In addition to what Phil said in his reply, for a good overview of the load 
balancing options I'd recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here's the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk]
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,

I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?

Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?

Thanks for any advice!

Laurence










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RE: Exchange 2010 design

2011-06-17 Thread Dave Wade
I downloaded and read that and it seems pretty substantial and seems to
cover the main points. I would expect if you followed it diligently you
would end up with a working and supportable solution. It also explains
fairly well what the key points of an Exchange design are and is pretty
clear on where you can and can't make compromises. The solution in the
paper is quite neat. It gets round the four physical server issue by
using two servers with virtualization. I think this will also save you
cash as a Windows Server Enterprise Licence (which you need for the
clustering to build the DAG) allows you to run up to four copies of
windows in the same physical machine. However you still need four
Exchange licences (but even for a big config only two need to be
Enterprise). I note the paper skirts round this. 
 
However there are however some tools available that simplify the some of
the calculations  I found (but didn't try) these:-
 
http://www.ibm.com/partnerworld/wps/sizing/sizingguide/guide_redirect.js
p?guide_id=sgq71003253131900102ssoId=unauthenticated
 
 
http://h71028.www7.hp.com/ActiveAnswers/us/en/sizers/microsoft-exchange-
server-2010.html
 
http://blogs.technet.com/b/exchange/archive/2009/11/09/3408737.aspx
 
Hope this helps
 
Dave Wade
Corporate and Support Services I.C.T.
0161 474 5456
 




From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 17 June 2011 16:55
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design


Thanks for the replies, they set me off on a lot of reading.
Unfortunatly I've been told that a hardware load balancer is out of the
question at the moment, but I did find this link for a highly available
500 mailbox design
(http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0e93251-fc
04-4a18-8aa0-23817b6d0c97) in my list archive, for an MS white paper
which seems to describe an implementation that would fit with what I've
been required to do.
 
My only question would be, how real world are these white
papers, if I followed a similar route would I end up with a practical
solution?
Thanks again,

Laurence

 


From: Neil Hobson [mailto:neil.hob...@microsoft.com] 
Sent: 13 June 2011 15:30
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design



In addition to what Phil said in his reply, for a good overview
of the load balancing options I'd recommend reading this topic :
http://technet.microsoft.com/en-us/library/ff625247.aspx

 

FYI, if you go down the hardware load balancer route, here's the
page that lists the hardware load balancers that have completed solution
testing with Exchange 2010 :
http://technet.microsoft.com/en-us/exchange/gg176682.aspx

 

HTH,

 

Neil

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

 

Hi Everyone,

 

I'm a bit new to this so my apologies if I've not understood
something correctly. I'm trying to plan new hardware to deploy Exchange
2010 (100 users, average mailbox size 500MB) and am looking at using two
servers with CAS, HT and Mailbox roles installed on both and using DAG
for high availability. I was thinking of using Windows NLB for load
balancing,but have read that this can't be used with DAG
(http://technet.microsoft.com/en-us/library/dd979781.aspx). My question
is, if I set up two additional servers with NLB installed and moved the
CAS and HT roles to them, would this solution then provide the load
balancing I'm looking for?

 

Alternatively, would I be better off with two highly redundant
servers and use one for Mailbox and one for CAS and HT?

 

Thanks for any advice!

 

Laurence

 

 

 

 

 

 

 

 

 

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RE: Exchange 2010 design

2011-06-17 Thread Dave Wade
 





From: Damien Solodow [mailto:damien.solo...@harrison.edu] 
Sent: 17 June 2011 17:24
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design



That looks like a good paper, and the solution looks
appropriate. 

One thing to make sure you're aware of when using NLB; you can't
have NLB and Windows Clustering on the same server. So if you are using
NLB for your CAS and you think you may want to use DAG for your mailbox
server(s), the roles will have to be on separate servers.

 

It has a neat solution to that. It uses four virtual servers on two
physical boxes.

 

 

DAMIEN SOLODOW

Systems Engineer

317.447.6033 (office)

317.447.6014 (fax)

HARRISON COLLEGE

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: Friday, June 17, 2011 11:55 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

 

Thanks for the replies, they set me off on a lot of reading.
Unfortunatly I've been told that a hardware load balancer is out of the
question at the moment, but I did find this link for a highly available
500 mailbox design
(http://www.microsoft.com/downloads/en/details.aspx?FamilyID=e0e93251-fc
04-4a18-8aa0-23817b6d0c97) in my list archive, for an MS white paper
which seems to describe an implementation that would fit with what I've
been required to do.

 

My only question would be, how real world are these white
papers, if I followed a similar route would I end up with a practical
solution?

Thanks again,

Laurence

 





From: Neil Hobson [mailto:neil.hob...@microsoft.com] 
Sent: 13 June 2011 15:30
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

In addition to what Phil said in his reply, for a good overview
of the load balancing options I'd recommend reading this topic :
http://technet.microsoft.com/en-us/library/ff625247.aspx

 

FYI, if you go down the hardware load balancer route, here's the
page that lists the hardware load balancers that have completed solution
testing with Exchange 2010 :
http://technet.microsoft.com/en-us/exchange/gg176682.aspx

 

HTH,

 

Neil

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

 

Hi Everyone,

 

I'm a bit new to this so my apologies if I've not understood
something correctly. I'm trying to plan new hardware to deploy Exchange
2010 (100 users, average mailbox size 500MB) and am looking at using two
servers with CAS, HT and Mailbox roles installed on both and using DAG
for high availability. I was thinking of using Windows NLB for load
balancing,but have read that this can't be used with DAG
(http://technet.microsoft.com/en-us/library/dd979781.aspx). My question
is, if I set up two additional servers with NLB installed and moved the
CAS and HT roles to them, would this solution then provide the load
balancing I'm looking for?

 

Alternatively, would I be better off with two highly redundant
servers and use one for Mailbox and one for CAS and HT?

 

Thanks for any advice!

 

Laurence

 

 

 

 

 

 

 

 

 

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RE: Exchange 2010 design

2011-06-17 Thread Ryan Finnesey
I need to do something very similar I need to decide if we want to use
hardware from F5 or use NLB for an Exchange 2010 deployment.  Thank you
for the helpful links.

 

Cheers

Ryan

 

 

From: Neil Hobson [mailto:neil.hob...@microsoft.com] 
Sent: Monday, June 13, 2011 10:30 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

 

In addition to what Phil said in his reply, for a good overview of the
load balancing options I'd recommend reading this topic :
http://technet.microsoft.com/en-us/library/ff625247.aspx

 

FYI, if you go down the hardware load balancer route, here's the page
that lists the hardware load balancers that have completed solution
testing with Exchange 2010 :
http://technet.microsoft.com/en-us/exchange/gg176682.aspx

 

HTH,

 

Neil

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

 

Hi Everyone,

 

I'm a bit new to this so my apologies if I've not understood something
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100
users, average mailbox size 500MB) and am looking at using two servers
with CAS, HT and Mailbox roles installed on both and using DAG for high
availability. I was thinking of using Windows NLB for load balancing,but
have read that this can't be used with DAG
(http://technet.microsoft.com/en-us/library/dd979781.aspx). My question
is, if I set up two additional servers with NLB installed and moved the
CAS and HT roles to them, would this solution then provide the load
balancing I'm looking for?

 

Alternatively, would I be better off with two highly redundant servers
and use one for Mailbox and one for CAS and HT?

 

Thanks for any advice!

 

Laurence

 

 

 

 

 

 

 

 

 

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RE: Exchange 2010 design

2011-06-17 Thread PRamatowski

Been running E2010 for a year now- We're getting rid of WNLB, putting four Kemp 
loadmaster 2200's into place, a high availability pair in each AD site Did one 
site yesterday, the other is planned for next week.We're ~7K mailboxes with 
2 real mbx/hub and 3 virtual cas in each site. ~1400 BB's, few hundred EAS devs.

Are you stuck on F5 for some reason?   Not that I have any long experience with 
Kemp or anything but they seem to be pretty nice boxes for a very reasonable 
price...



From: Ryan Finnesey [mailto:ryan.finne...@harrierinvestments.com]
Sent: Friday, June 17, 2011 1:21 PM
To: MS-Exchange Admin Issues
Cc: neil.hob...@microsoft.com
Subject: RE: Exchange 2010 design

I need to do something very similar I need to decide if we want to use hardware 
from F5 or use NLB for an Exchange 2010 deployment.  Thank you for the helpful 
links.

Cheers
Ryan


From: Neil Hobson [mailto:neil.hob...@microsoft.com]
Sent: Monday, June 13, 2011 10:30 AM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2010 design

In addition to what Phil said in his reply, for a good overview of the load 
balancing options I'd recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here's the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk]
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,

I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?

Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?

Thanks for any advice!

Laurence










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Re: Exchange 2010 design

2011-06-17 Thread sms adm
How reliable was your WNLB?
We're planning to do the same ... start with WNLB and move to HW NLB when
our network guys decide what they will buy and when.

Thx in advance

On Fri, Jun 17, 2011 at 3:58 PM, pramatow...@mediageneral.com wrote:

  ** **

 Been running E2010 for a year now- We’re getting rid of WNLB, putting four
 Kemp loadmaster 2200’s into place, a high availability pair in each AD site
 Did one site yesterday, the other is planned for next week.We’re ~7K
 mailboxes with 2 real mbx/hub and 3 virtual cas in each site. ~1400 BB’s,
 few hundred EAS devs.

 ** **

 Are you stuck on F5 for some reason?   Not that I have any long experience
 with Kemp or anything but they seem to be pretty nice boxes for a very
 reasonable price…

 ** **

 ** **

 ** **

 *From:* Ryan Finnesey [mailto:ryan.finne...@harrierinvestments.com]
 *Sent:* Friday, June 17, 2011 1:21 PM

 *To:* MS-Exchange Admin Issues
 *Cc:* neil.hob...@microsoft.com

 *Subject:* RE: Exchange 2010 design

  ** **

 I need to do something very similar I need to decide if we want to use
 hardware from F5 or use NLB for an Exchange 2010 deployment.  Thank you for
 the helpful links.

 ** **

 Cheers

 Ryan

 ** **

 ** **

 *From:* Neil Hobson [mailto:neil.hob...@microsoft.com]
 *Sent:* Monday, June 13, 2011 10:30 AM
 *To:* MS-Exchange Admin Issues
 *Subject:* RE: Exchange 2010 design

 ** **

 In addition to what Phil said in his reply, for a good overview of the load
 balancing options I’d recommend reading this topic :
 http://technet.microsoft.com/en-us/library/ff625247.aspx

 ** **

 FYI, if you go down the hardware load balancer route, here’s the page that
 lists the hardware load balancers that have completed solution testing with
 Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx*
 ***

 ** **

 HTH,

 ** **

 Neil

 ** **

 *From:* Laurence Bryant [mailto:l...@cem.dur.ac.uk]
 *Sent:* 13 June 2011 13:59
 *To:* MS-Exchange Admin Issues
 *Subject:* Exchange 2010 design

 ** **

 Hi Everyone,

  

 I'm a bit new to this so my apologies if I've not understood something
 correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100
 users, average mailbox size 500MB) and am looking at using two servers with
 CAS, HT and Mailbox roles installed on both and using DAG for high
 availability. I was thinking of using Windows NLB for load balancing,but
 have read that this can't be used with DAG (
 http://technet.microsoft.com/en-us/library/dd979781.aspx). My question is,
 if I set up two additional servers with NLB installed and moved the
 CAS and HT roles to them, would this solution then provide the load
 balancing I'm looking for?

  

 Alternatively, would I be better off with two highly redundant servers and
 use one for Mailbox and one for CAS and HT?

  

 Thanks for any advice!

  

 Laurence

  

  

  

  

  

  

  

  

  

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-- 
smsadm

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RE: Exchange 2010 design

2011-06-13 Thread Phil Hershey
Laurence,

 

If you're going to have all three roles, CAS/HT/MB, on each server, you
need a hardware load balancer.  You can get a decent one for under $2k.
If you go with the CAS/HT role on one server and the MB role on the
other, you won't have any fault tolerance other than any level of RAID
you may use.

 

Philip

Carpinteria, CA

 

 

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk] 
Sent: Monday, June 13, 2011 5:59 AM
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

 

Hi Everyone,

 

I'm a bit new to this so my apologies if I've not understood something
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100
users, average mailbox size 500MB) and am looking at using two servers
with CAS, HT and Mailbox roles installed on both and using DAG for high
availability. I was thinking of using Windows NLB for load balancing,but
have read that this can't be used with DAG
(http://technet.microsoft.com/en-us/library/dd979781.aspx). My question
is, if I set up two additional servers with NLB installed and moved the
CAS and HT roles to them, would this solution then provide the load
balancing I'm looking for?

 

Alternatively, would I be better off with two highly redundant servers
and use one for Mailbox and one for CAS and HT?

 

Thanks for any advice!

 

Laurence

 

 

 

 

 

 

 

 

 

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RE: Exchange 2010 design

2011-06-13 Thread Neil Hobson
In addition to what Phil said in his reply, for a good overview of the load 
balancing options I'd recommend reading this topic : 
http://technet.microsoft.com/en-us/library/ff625247.aspx

FYI, if you go down the hardware load balancer route, here's the page that 
lists the hardware load balancers that have completed solution testing with 
Exchange 2010 : http://technet.microsoft.com/en-us/exchange/gg176682.aspx

HTH,

Neil

From: Laurence Bryant [mailto:l...@cem.dur.ac.uk]
Sent: 13 June 2011 13:59
To: MS-Exchange Admin Issues
Subject: Exchange 2010 design

Hi Everyone,

I'm a bit new to this so my apologies if I've not understood something 
correctly. I'm trying to plan new hardware to deploy Exchange 2010 (100 users, 
average mailbox size 500MB) and am looking at using two servers with CAS, HT 
and Mailbox roles installed on both and using DAG for high availability. I was 
thinking of using Windows NLB for load balancing,but have read that this can't 
be used with DAG (http://technet.microsoft.com/en-us/library/dd979781.aspx). My 
question is, if I set up two additional servers with NLB installed and moved 
the CAS and HT roles to them, would this solution then provide the load 
balancing I'm looking for?

Alternatively, would I be better off with two highly redundant servers and use 
one for Mailbox and one for CAS and HT?

Thanks for any advice!

Laurence










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