ADSM-L

Re: disk storage pools and windows compressed file systems

2004-09-21 18:54:22
Subject: Re: disk storage pools and windows compressed file systems
From: Bill Smoldt <smoldt AT STORSOL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 21 Sep 2004 16:55:16 -0600
I have two instances of storage pool volume corruption due to file
compression on Windows 2003.  Required a db audit of the storage to get rid
of the volumes.

It seemed like a good idea to the customer . . .

Bill Smoldt
STORServer, Inc.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Rushforth, Tim
Sent: Tuesday, September 21, 2004 12:39 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: disk storage pools and windows compressed file systems

The 5.2.2 Performance Tuning Guide says:
"NTFS file compression should not be used on disk volumes that are used by
the TSM server, because of the potential for performance degradation."

We use client compression so I don't think it would buy us anything.

Report back if you try this out!

-----Original Message-----
From: Steve Bennett [mailto:steve_bennett AT ADMIN.STATE.AK DOT US]
Sent: Tuesday, September 21, 2004 12:11 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: disk storage pools and windows compressed file systems

Have any of you used disk primary storage pools which use windows
compressed file systems? Comments on performance, etc?

We are investigating use of a multi TB raid5 array to use as a buffer
between our local primary disk pool and the tapepool. Have seen the
posts regarding file vs disk device classes but what about compression?
Good, bad, etc.

Win 2000 sp4 with TSM server 5.2.3.2

--

Steve Bennett, (907) 465-5783
State of Alaska, Enterprise Technology Services, Technical Services Section

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