We have Netbay3. Am I going to have to rebuild the box to do all this?  

-----Original Message-----
From: Waters, Jeff [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 3:29 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization

Do you have the Netfinity NETBAY3 so that you can use up to 6 drives?  If
you don't, and you aren't using something like the EXP300 external bay then
you are physically limited to 3 drives and one arm.  If you have the NETBAY3
you can run up to 6 drives with 3 on each channel, or with all 6 on one
channel.  To go beyond that you are going to be looking at something like
the EXP300 or 500 expansion bays.
If you don't have the NETBAY3 I would get one, and then get the store on a
different arm/channel.
Here are your choices as I see them from the top of my head.
using a NETBAY3;
1 channel and 3 raid 1 drives, then you could do os, logs, and store on
separate drives however you are still going to take a performance hit
because they are all on the same channel.
2 channels
1- Raid1 drive and 2 logical drives on 1 channel for the OS and Logs
1- Raid1 drive with 1 logical drive for the store.
Not the optimum, however you will at least get your logs and store on
separate drive arms.  I had this for a couple of years and it worked fine.
Get yourself an EXP unit;
1-Raid 1 in the server for the OS
1-Raid 1 in the EXP for the logs
1-Raid 5 in the EXP for the stores
The EXP is a duel channel bus, this would put your OS, Logs and Store all on
separate channels and give you the best performance.

What I have done for our severs is run both the NETBAY3 and an EXP500, this
allows me to run two channels within the servers, and split the EXP between
two servers.

-----Original Message-----
From: Gonzalez, Alex [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 18, 2002 3:07 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization


Oh it's a 86565RY.

-----Original Message-----
From: Waters, Jeff [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 2:14 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization

Sorry brain dead, I missed the netfinity part.  What server are you running
this in?  If you have the IBM raid manager loaded you can run that within
windows, otherwise you either run the config or open the box up.  Your
server configuration is going to determine how the drives are setup.  If you
get me the model of IBM server you have I can give more information.  I know
the 4M card very well as we have a few of them here.

-----Original Message-----
From: Gonzalez, Alex [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 18, 2002 2:15 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization


well we have a multi channel card but how do I do this now that everything
is configured this way?

-----Original Message-----
From: Waters, Jeff [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 2:07 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization

sorry I missed the other post.
That is your problem, you really, really, really need to get a multi-channel
Raid card, the put the OS, Logs, and store on separate arms.  Until then you
performance is only going to get worse.

-----Original Message-----
From: Gonzalez, Alex [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 18, 2002 2:11 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization


No everything is on the same RAID.  We have Blackberry Server edition but
that barely does anything we only 5 people using it.  Also we have Norton AV
but I have shut that off and it still runs hot.  Only the drives though the
processor only runs at like 20%

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 2:04 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization

Are logs and db on same raid 5 set?  Logs should always be on Raid 1 and db
on raid 5 (in an ideal environment).  Logs are sequential I/O's where DB's
are random I/O's.

Are there other applications other than exchange running on the server?  Are
backups taking place at the same time (i.e. peak business hours)?

-----Original Message-----
From: Gonzalez, Alex [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 2:00 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization


Netfinity Ultra 160 4M.  RAID 5

-----Original Message-----
From: Waters, Jeff [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 1:52 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization

What is your hard drive config?  What type of SCSI controller are you using?

-----Original Message-----
From: Gonzalez, Alex [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 18, 2002 1:44 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization


We have about 850 people on a dual 933 pIII with 2GB of ram.  There is 140GB
of storage on RAID5 and Gigabit Ethernet.  I ran a perfmon on the hard
drives and they run at close to 100% all the time.  

-----Original Message-----
From: Waters, Jeff [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, September 18, 2002 1:32 PM
To: Exchange Discussions
Subject: RE: Hard Drive Utilization

yes/no
What is your hardware config?  We have about 750 on one PII 450 Xeon system
and are not having any performance issues at all.  What else is running on
this box.  Need input.

-----Original Message-----
From: Gonzalez, Alex [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 18, 2002 1:24 PM
To: Exchange Discussions
Subject: Hard Drive Utilization


Does anyone else with a fairly large environment (+500 on one Server) have
slowness issues related to hard drive utilization?  By that I mean speed not
actually how large.  Are box runs very slow and the hard drives look peaked.

Thank you,
 
Alex Gonzalez
Senior Systems Administrator
Handleman Company
[EMAIL PROTECTED]
(248) 362-4400 Ext. 4914


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