Re: Question about LanFreeBackup

2006-10-18 Thread Allen S. Rout
>> On Tue, 17 Oct 2006 15:01:13 -0400, "Prather, Wanda" <[EMAIL PROTECTED]> 
>> said:


> LTO2 drives run at 35-40MB/sec.
> LTO3 drives run at 65-70MB/sec.

> GigE will support maybe 70 MB/sec, if there isn't too much congestion.

*koff* 120.

:)

But complete support for the base case.  Unless your LAN is seriously
congested, the SAN-based backups are unnecessary complexity.  And it's
usually cheaper to upgrade the LAN than to do the extra work.



- Allen S. Rout


Re: Question about LanFreeBackup

2006-10-18 Thread Matthew Warren
I wouldn't simply use the figure from the tuning guide. The buffpool size is 
useful in increasing performance through upping the database cache hit %, which 
should ideally be over 98%.

http://www.tsmwiki.com/tsmwiki/CacheHitPct 

Matt.

> -Original Message-
> From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] 
> On Behalf Of Francisco Molero
> Sent: 16 October 2006 20:08
> To: ADSM-L@VM.MARIST.EDU
> Subject: Re: [ADSM-L] Question about LanFreeBackup
> 
> From performance and tunning guide:
> 
> 262144
> 
> - Mensaje original 
> De: Robert Ouzen Ouzen <[EMAIL PROTECTED]>
> Para: ADSM-L@VM.MARIST.EDU
> Enviado: lunes, 16 de octubre, 2006 20:39:38
> Asunto: Re: Question about LanFreeBackup
> 
> Fran
> 
> 
> 
> What is your suggestion of the size for the buffpoolsize 
> parameter on a 2 GB memory server and LTO2 TAPES
> 
> 
> 
> Regards
> 
> 
> 
> Robert Ouzen 
> 
> 
> 
> -Original Message-
> 
> From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] 
> On Behalf Of Francisco Molero
> 
> Sent: Monday, October 16, 2006 8:28 PM
> 
> To: ADSM-L@VM.MARIST.EDU
> 
> Subject: Re: [ADSM-L] Question about LanFreeBackup
> 
> 
> 
> In my opinion, you can get great performance with LTO3 and 
> aplications like db2, Oracle, SAP, Domino, Exchange, etc. It 
> is a good idea if you want to backup big files. I don't 
> recommend you if you want to backup fileservers. 
> 
> 
> 
> I have found differents performance. The best one was 1,5 TB 
> y 1:30 minutes using LTO3 and DS8100, SAP with Oracle and AIX. 
> 
> 
> 
> The best parameters in TSM 5.3 are the defaults, Only you 
> have to change the buffpoolsize in the server. The best 
> communication method in TSM 5.3 is sharedmem. 
> 
> 
> 
> I hope this help you. 
> 
> 
> 
> 
> 
> Regards,
> 
> 
> 
> Fran
> 
> 
> 
> TSM deployment certified.
> 
> TSM administrator certified.
> 
> ITIL Certified.
> 
> AIX Certified. 
> 
> 
> 
> - Mensaje original 
> 
> De: Mark Stapleton <[EMAIL PROTECTED]>
> 
> Para: ADSM-L@VM.MARIST.EDU
> 
> Enviado: lunes, 16 de octubre, 2006 20:01:51
> 
> Asunto: Re: Question about LanFreeBackup
> 
> 
> 
> From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] 
> On Behalf Of Anker Lerret
> 
> >> Remember that LAN-free backups are often no faster than 100MB/1GB 
> 
> >> Ethernet LAN-based backups. (In a few cases they will actually be 
> 
> >> slower.)
> 
> >
> 
> >Mark, can you say some more about that?  We're hoping to start doing 
> 
> >LAN-free and I was hoping that we could see some nice 
> improvements in 
> 
> >large backups that go straight to tape.  Are you just 
> talking about the 
> 
> >case where the LAN is relatively uncongested and the SAN is 
> overloaded?
> 
> >Or is there something else I'm missing?
> 
> 
> 
> I can't say that I've got quantifiable data; I speak from 
> real-world experience. SAN-based data transfer from disk to 
> tape has been, in the best of situations, only slightly 
> faster than similar LAN-based data transfer. As I said 
> earlier, the only advantages I've ever seen to LAN-free 
> backups have been 1. where the LAN is too congested (or 
> poorly configured) to guantee reasonable backup speeds 2. the 
> disk storage pool is too small to handle large file backups.
> 
> 3. you want to guarantee that an entire node's backups go 
> directly to tape
> 
> 
> 
> --
> 
> Mark Stapleton ([EMAIL PROTECTED])
> 
> Senior TSM engineer
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> __
> 
> LLama Gratis a cualquier PC del Mundo. 
> 
> Llamadas a fijos y móviles desde 1 céntimo por minuto. 
> 
> http://es.voice.yahoo.com
> 
> 
> 
> 
> 
> 
>   
> __ 
> LLama Gratis a cualquier PC del Mundo. 
> Llamadas a fijos y móviles desde 1 céntimo por minuto. 
> http://es.voice.yahoo.com
> 
> 
>  
> 


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Re: Question about LanFreeBackup

2006-10-17 Thread Prather, Wanda
Here's something quantifiable:
 
LTO2 drives run at 35-40MB/sec.
LTO3 drives run at 65-70MB/sec.
GigE will support maybe 70 MB/sec, if there isn't too much congestion.
 
So backing up over the SAN instead of Ethernet to an LTO2 drive will still give 
you - 35-40MB/sec.
 
If your problem is Ethernet congestion, you may come out cheaper to buy a 2nd 
NIC for your client and TSM server, and creating a "backup net" network 
segment, that trying to implement Lan-Free, 'cause the Lan-Free may not gain 
any speed for you.
 
(Remember that when Lan-Free clients first became available, many people were 
still backing up over 100MB Ethernet.)
 
 



From: ADSM: Dist Stor Manager on behalf of Charles A Hart
Sent: Tue 10/17/2006 9:21 AM
To: ADSM-L@VM.MARIST.EDU
Subject: Re: Question about LanFreeBackup



David,

Was your 4-5 times faster going direct to a Physical Tape Drive?  I ask as
we are moving to all Virtual Tape we are finding the LAN Free backups to
any of the VTL Heads (Dilligent / Falcon Store etc) become the bottleneck.
 I can see a stream to a 3592 or maybe an LTO3 drive do better than a VTL
based LanFree.

I wish someone would make a VTL Head on a Unix box, there's just not the
I/O capacity in these Intel/AMD based linux VTL heads

Regards,

Charles Hart
UHT - Data Protection





David E Ehresman <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" 
10/16/2006 01:15 PM
Please respond to
"ADSM: Dist Stor Manager" 


To
ADSM-L@VM.MARIST.EDU
cc

Subject
Re: [ADSM-L] Question about LanFreeBackup






My experience has been different.  Lan Free backups of our Oracle
databases run 4 to 5 times faster than over our lan.  Systems with lots
of small files to backup did not show much improvement going lan free.

David Ehresman

>>> Mark Stapleton <[EMAIL PROTECTED]> 10/16/2006 2:01 PM >>>
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf
Of
Anker Lerret
>> Remember that LAN-free backups are often no faster
>> than 100MB/1GB Ethernet LAN-based backups. (In a few
>> cases they will actually be slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing
>LAN-free and I was hoping that we could see some nice improvements in
>large backups that go straight to tape.  Are you just talking about
the
>case where the LAN is relatively uncongested and the SAN is
overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world
experience. SAN-based data transfer from disk to tape has been, in the
best of situations, only slightly faster than similar LAN-based data
transfer. As I said earlier, the only advantages I've ever seen to
LAN-free backups have been
1. where the LAN is too congested (or poorly configured) to guantee
reasonable backup speeds
2. the disk storage pool is too small to handle large file backups.
3. you want to guarantee that an entire node's backups go directly to
tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer



This e-mail, including attachments, may include confidential and/or
proprietary information, and may be used only by the person or entity to
which it is addressed. If the reader of this e-mail is not the intended
recipient or his or her authorized agent, the reader is hereby notified
that any dissemination, distribution or copying of this e-mail is
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Re: Question about LanFreeBackup

2006-10-17 Thread David E Ehresman
Yes, our LAN Free goes directly to physical tape, namely 3590E in a 3494
library.

David

>>> Charles A Hart <[EMAIL PROTECTED]> 10/17/2006 9:21 AM >>>
David,

Was your 4-5 times faster going direct to a Physical Tape Drive?  I ask
as
we are moving to all Virtual Tape we are finding the LAN Free backups
to
any of the VTL Heads (Dilligent / Falcon Store etc) become the
bottleneck.
 I can see a stream to a 3592 or maybe an LTO3 drive do better than a
VTL
based LanFree.

I wish someone would make a VTL Head on a Unix box, there's just not
the
I/O capacity in these Intel/AMD based linux VTL heads

Regards,

Charles Hart
UHT - Data Protection





David E Ehresman <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" 
10/16/2006 01:15 PM
Please respond to
"ADSM: Dist Stor Manager" 


To
ADSM-L@VM.MARIST.EDU
cc

Subject
Re: [ADSM-L] Question about LanFreeBackup






My experience has been different.  Lan Free backups of our Oracle
databases run 4 to 5 times faster than over our lan.  Systems with
lots
of small files to backup did not show much improvement going lan free.

David Ehresman

>>> Mark Stapleton <[EMAIL PROTECTED]> 10/16/2006 2:01 PM >>>
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf
Of
Anker Lerret
>> Remember that LAN-free backups are often no faster
>> than 100MB/1GB Ethernet LAN-based backups. (In a few
>> cases they will actually be slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing
>LAN-free and I was hoping that we could see some nice improvements in
>large backups that go straight to tape.  Are you just talking about
the
>case where the LAN is relatively uncongested and the SAN is
overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world
experience. SAN-based data transfer from disk to tape has been, in the
best of situations, only slightly faster than similar LAN-based data
transfer. As I said earlier, the only advantages I've ever seen to
LAN-free backups have been
1. where the LAN is too congested (or poorly configured) to guantee
reasonable backup speeds
2. the disk storage pool is too small to handle large file backups.
3. you want to guarantee that an entire node's backups go directly to
tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer



This e-mail, including attachments, may include confidential and/or
proprietary information, and may be used only by the person or entity
to
which it is addressed. If the reader of this e-mail is not the
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recipient or his or her authorized agent, the reader is hereby
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that any dissemination, distribution or copying of this e-mail is
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Re: Question about LanFreeBackup

2006-10-17 Thread Charles A Hart
David,

Was your 4-5 times faster going direct to a Physical Tape Drive?  I ask as
we are moving to all Virtual Tape we are finding the LAN Free backups to
any of the VTL Heads (Dilligent / Falcon Store etc) become the bottleneck.
 I can see a stream to a 3592 or maybe an LTO3 drive do better than a VTL
based LanFree.

I wish someone would make a VTL Head on a Unix box, there's just not the
I/O capacity in these Intel/AMD based linux VTL heads

Regards,

Charles Hart
UHT - Data Protection





David E Ehresman <[EMAIL PROTECTED]>
Sent by: "ADSM: Dist Stor Manager" 
10/16/2006 01:15 PM
Please respond to
"ADSM: Dist Stor Manager" 


To
ADSM-L@VM.MARIST.EDU
cc

Subject
Re: [ADSM-L] Question about LanFreeBackup






My experience has been different.  Lan Free backups of our Oracle
databases run 4 to 5 times faster than over our lan.  Systems with lots
of small files to backup did not show much improvement going lan free.

David Ehresman

>>> Mark Stapleton <[EMAIL PROTECTED]> 10/16/2006 2:01 PM >>>
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf
Of
Anker Lerret
>> Remember that LAN-free backups are often no faster
>> than 100MB/1GB Ethernet LAN-based backups. (In a few
>> cases they will actually be slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing
>LAN-free and I was hoping that we could see some nice improvements in
>large backups that go straight to tape.  Are you just talking about
the
>case where the LAN is relatively uncongested and the SAN is
overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world
experience. SAN-based data transfer from disk to tape has been, in the
best of situations, only slightly faster than similar LAN-based data
transfer. As I said earlier, the only advantages I've ever seen to
LAN-free backups have been
1. where the LAN is too congested (or poorly configured) to guantee
reasonable backup speeds
2. the disk storage pool is too small to handle large file backups.
3. you want to guarantee that an entire node's backups go directly to
tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer



This e-mail, including attachments, may include confidential and/or
proprietary information, and may be used only by the person or entity to
which it is addressed. If the reader of this e-mail is not the intended
recipient or his or her authorized agent, the reader is hereby notified
that any dissemination, distribution or copying of this e-mail is
prohibited. If you have received this e-mail in error, please notify the
sender by replying to this message and delete this e-mail immediately.


Re: Question about LanFreeBackup

2006-10-16 Thread Francisco Molero
>From performance and tunning guide:

262144

- Mensaje original 
De: Robert Ouzen Ouzen <[EMAIL PROTECTED]>
Para: ADSM-L@VM.MARIST.EDU
Enviado: lunes, 16 de octubre, 2006 20:39:38
Asunto: Re: Question about LanFreeBackup

Fran



What is your suggestion of the size for the buffpoolsize parameter on a 2 GB 
memory server and LTO2 TAPES



Regards



Robert Ouzen 



-Original Message-

From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Francisco 
Molero

Sent: Monday, October 16, 2006 8:28 PM

To: ADSM-L@VM.MARIST.EDU

Subject: Re: [ADSM-L] Question about LanFreeBackup



In my opinion, you can get great performance with LTO3 and aplications like 
db2, Oracle, SAP, Domino, Exchange, etc. It is a good idea if you want to 
backup big files. I don't recommend you if you want to backup fileservers. 



I have found differents performance. The best one was 1,5 TB y 1:30 minutes 
using LTO3 and DS8100, SAP with Oracle and AIX. 



The best parameters in TSM 5.3 are the defaults, Only you have to change the 
buffpoolsize in the server. The best communication method in TSM 5.3 is 
sharedmem. 



I hope this help you. 





Regards,



Fran



TSM deployment certified.

TSM administrator certified.

ITIL Certified.

AIX Certified. 



- Mensaje original 

De: Mark Stapleton <[EMAIL PROTECTED]>

Para: ADSM-L@VM.MARIST.EDU

Enviado: lunes, 16 de octubre, 2006 20:01:51

Asunto: Re: Question about LanFreeBackup



From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Anker 
Lerret

>> Remember that LAN-free backups are often no faster than 100MB/1GB 

>> Ethernet LAN-based backups. (In a few cases they will actually be 

>> slower.)

>

>Mark, can you say some more about that?  We're hoping to start doing 

>LAN-free and I was hoping that we could see some nice improvements in 

>large backups that go straight to tape.  Are you just talking about the 

>case where the LAN is relatively uncongested and the SAN is overloaded?

>Or is there something else I'm missing?



I can't say that I've got quantifiable data; I speak from real-world 
experience. SAN-based data transfer from disk to tape has been, in the best of 
situations, only slightly faster than similar LAN-based data transfer. As I 
said earlier, the only advantages I've ever seen to LAN-free backups have been 
1. where the LAN is too congested (or poorly configured) to guantee reasonable 
backup speeds 2. the disk storage pool is too small to handle large file 
backups.

3. you want to guarantee that an entire node's backups go directly to tape



--

Mark Stapleton ([EMAIL PROTECTED])

Senior TSM engineer













__

LLama Gratis a cualquier PC del Mundo. 

Llamadas a fijos y móviles desde 1 céntimo por minuto. 

http://es.voice.yahoo.com







__ 
LLama Gratis a cualquier PC del Mundo. 
Llamadas a fijos y móviles desde 1 céntimo por minuto. 
http://es.voice.yahoo.com


Re: Question about LanFreeBackup

2006-10-16 Thread Robert Ouzen Ouzen
Fran

What is your suggestion of the size for the buffpoolsize parameter on a 2 GB 
memory server and LTO2 TAPES

Regards

Robert Ouzen 

-Original Message-
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Francisco 
Molero
Sent: Monday, October 16, 2006 8:28 PM
To: ADSM-L@VM.MARIST.EDU
Subject: Re: [ADSM-L] Question about LanFreeBackup

In my opinion, you can get great performance with LTO3 and aplications like 
db2, Oracle, SAP, Domino, Exchange, etc. It is a good idea if you want to 
backup big files. I don't recommend you if you want to backup fileservers. 

I have found differents performance. The best one was 1,5 TB y 1:30 minutes 
using LTO3 and DS8100, SAP with Oracle and AIX. 

The best parameters in TSM 5.3 are the defaults, Only you have to change the 
buffpoolsize in the server. The best communication method in TSM 5.3 is 
sharedmem. 

I hope this help you. 


Regards,

Fran

TSM deployment certified.
TSM administrator certified.
ITIL Certified.
AIX Certified. 

- Mensaje original 
De: Mark Stapleton <[EMAIL PROTECTED]>
Para: ADSM-L@VM.MARIST.EDU
Enviado: lunes, 16 de octubre, 2006 20:01:51
Asunto: Re: Question about LanFreeBackup

From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Anker 
Lerret
>> Remember that LAN-free backups are often no faster than 100MB/1GB 
>> Ethernet LAN-based backups. (In a few cases they will actually be 
>> slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing 
>LAN-free and I was hoping that we could see some nice improvements in 
>large backups that go straight to tape.  Are you just talking about the 
>case where the LAN is relatively uncongested and the SAN is overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world 
experience. SAN-based data transfer from disk to tape has been, in the best of 
situations, only slightly faster than similar LAN-based data transfer. As I 
said earlier, the only advantages I've ever seen to LAN-free backups have been 
1. where the LAN is too congested (or poorly configured) to guantee reasonable 
backup speeds 2. the disk storage pool is too small to handle large file 
backups.
3. you want to guarantee that an entire node's backups go directly to tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer






__
LLama Gratis a cualquier PC del Mundo. 
Llamadas a fijos y móviles desde 1 céntimo por minuto. 
http://es.voice.yahoo.com


Re: Question about LanFreeBackup

2006-10-16 Thread Francisco Molero
In my opinion, you can get great performance with LTO3 and aplications like 
db2, Oracle, SAP, Domino, Exchange, etc. It is a good idea if you want to 
backup big files. I don't recommend you if you want to backup fileservers. 

I have found differents performance. The best one was 1,5 TB y 1:30 minutes 
using LTO3 and DS8100, SAP with Oracle and AIX. 

The best parameters in TSM 5.3 are the defaults, Only you have to change the 
buffpoolsize in the server. The best communication method in TSM 5.3 is 
sharedmem. 

I hope this help you. 


Regards,

Fran

TSM deployment certified.
TSM administrator certified.
ITIL Certified.
AIX Certified. 

- Mensaje original 
De: Mark Stapleton <[EMAIL PROTECTED]>
Para: ADSM-L@VM.MARIST.EDU
Enviado: lunes, 16 de octubre, 2006 20:01:51
Asunto: Re: Question about LanFreeBackup

From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of
Anker Lerret
>> Remember that LAN-free backups are often no faster
>> than 100MB/1GB Ethernet LAN-based backups. (In a few
>> cases they will actually be slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing
>LAN-free and I was hoping that we could see some nice improvements in
>large backups that go straight to tape.  Are you just talking about the
>case where the LAN is relatively uncongested and the SAN is overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world
experience. SAN-based data transfer from disk to tape has been, in the
best of situations, only slightly faster than similar LAN-based data
transfer. As I said earlier, the only advantages I've ever seen to
LAN-free backups have been 
1. where the LAN is too congested (or poorly configured) to guantee
reasonable backup speeds
2. the disk storage pool is too small to handle large file backups.
3. you want to guarantee that an entire node's backups go directly to
tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer






__ 
LLama Gratis a cualquier PC del Mundo. 
Llamadas a fijos y móviles desde 1 céntimo por minuto. 
http://es.voice.yahoo.com


Re: Question about LanFreeBackup

2006-10-16 Thread David E Ehresman
My experience has been different.  Lan Free backups of our Oracle
databases run 4 to 5 times faster than over our lan.  Systems with lots
of small files to backup did not show much improvement going lan free.

David Ehresman

>>> Mark Stapleton <[EMAIL PROTECTED]> 10/16/2006 2:01 PM >>>
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf
Of
Anker Lerret
>> Remember that LAN-free backups are often no faster
>> than 100MB/1GB Ethernet LAN-based backups. (In a few
>> cases they will actually be slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing
>LAN-free and I was hoping that we could see some nice improvements in
>large backups that go straight to tape.  Are you just talking about
the
>case where the LAN is relatively uncongested and the SAN is
overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world
experience. SAN-based data transfer from disk to tape has been, in the
best of situations, only slightly faster than similar LAN-based data
transfer. As I said earlier, the only advantages I've ever seen to
LAN-free backups have been
1. where the LAN is too congested (or poorly configured) to guantee
reasonable backup speeds
2. the disk storage pool is too small to handle large file backups.
3. you want to guarantee that an entire node's backups go directly to
tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer


Re: Question about LanFreeBackup

2006-10-16 Thread Mark Stapleton
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of
Anker Lerret
>> Remember that LAN-free backups are often no faster
>> than 100MB/1GB Ethernet LAN-based backups. (In a few
>> cases they will actually be slower.)
>
>Mark, can you say some more about that?  We're hoping to start doing
>LAN-free and I was hoping that we could see some nice improvements in
>large backups that go straight to tape.  Are you just talking about the
>case where the LAN is relatively uncongested and the SAN is overloaded?
>Or is there something else I'm missing?

I can't say that I've got quantifiable data; I speak from real-world
experience. SAN-based data transfer from disk to tape has been, in the
best of situations, only slightly faster than similar LAN-based data
transfer. As I said earlier, the only advantages I've ever seen to
LAN-free backups have been 
1. where the LAN is too congested (or poorly configured) to guantee
reasonable backup speeds
2. the disk storage pool is too small to handle large file backups.
3. you want to guarantee that an entire node's backups go directly to
tape

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer


Re: Question about LanFreeBackup

2006-10-16 Thread Anker Lerret
> Remember that LAN-free backups are often no faster
> than 100MB/1GB Ethernet LAN-based backups. (In a few
> cases they will actually be slower.)

Mark, can you say some more about that?  We're hoping to start doing
LAN-free and I was hoping that we could see some nice improvements in
large backups that go straight to tape.  Are you just talking about the
case where the LAN is relatively uncongested and the SAN is overloaded? 
Or is there something else I'm missing?

anker


Re: Question about LanFreeBackup

2006-10-16 Thread Mark Stapleton
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of
Robert Ouzen Ouzen
>I implant a LanFreeBackup of my Exchange server 2003 of 169 GB
database, by
>lan took 04:30 hours to backup on LTO2 tape by San I decrease to 02:20
>hours.
>I wonder if they are some tips to decrease the time any more !

Remember that LAN-free backups are often no faster than 100MB/1GB
Ethernet LAN-based backups. (In a few cases they will actually be
slower.) LAN-free is really a good option only when your LAN network is
too congested for timely backups, or you want to guarantee that all of a
given node's backups go to tape. 

If you're using LAN-free backups with the purpose of sending them
directly to tape, that might also be done by use of the MAXSIZE
parameter in your disk storage pool, or by clever use of storage pools
and management classes.

--
Mark Stapleton ([EMAIL PROTECTED])
Senior TSM engineer


Question about LanFreeBackup

2006-10-13 Thread Robert Ouzen Ouzen
Hi to all
 
I implant a LanFreeBackup of my Exchange server 2003 of 169 GB database, by lan 
took 04:30 hours to backup on LTO2 tape by San I decrease to 02:20 hours.
I wonder if they are some tips to decrease the time any more !
 
My TSM server is on a AIX machine , tsm version 5.3.2.4 
My TSM storage agent is 5.3.2.0
My TDP for exchange is 5.3.3.0
 
T.I.A Regards
 
Robert Ouzen