ADSM-L

Re: D2D on AIX

2004-09-20 18:41:09
Subject: Re: D2D on AIX
From: Ian Hobbs <little_brutus AT ROGERS DOT COM>
Date: Mon, 20 Sep 2004 18:25:54 -0400
Question,

 Why not use the DISK device class with RAW volumes?

 Personally, I find FILE classes a pain for user storage because you DO have to 
perform reclamation on them.

Ian Hobbs

On Mon, 20 Sep 2004 14:48:07 -0400, Eliza Lau wrote:

>Okay. I got it.  It is a pain to manually define the volumes, but it can be
>done.  I also received your pdf file.
>
>Thanks to everyone who answered,
>Eliza
>
>>
>> It depends upon how you configure things.  For dynamic allocation of
>> volumes, then yes you are limited to the size of the file system that
>> you mount on that mount point.  However if you define the stgpool
>> volumes explicitly using the DEFINE VOLUME command, you can place the
>> volumes across as many file systems as you want.  I will email you a PDF
>> presentation IBM has on Disk Only backups.
>>
>>
>> H. Milton Johnson
>>
>> -----Original Message-----
>> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
>> Of
>> Eliza Lau
>> Sent: Monday, September 20, 2004 12:11 PM
>> To: ADSM-L AT VM.MARIST DOT EDU
>> Subject: D2D on AIX
>>
>> Our 3494 with 3590K tapes in 3 frames is getting full.  Instead of
>> adding another frame or upgrading to 3590H or 3592 tapes we are looking
>> into setting up a bunch of cheap ATA disks as primary storage.
>>
>> The FILE devclass defines a directory as its destination and JFS2 has a
>> max file system size of 1TB.  Does it mean the largest stgpool I can
>> define is 1TB?
>>
>> My Exchange stgpool alone has 8TB of data.  Do I have to split it up
>> into 8 pieces?
>>
>> server: TSM 5.2.2.5 on AIX 5.2
>> database 90GB at 70%
>> Total backup data - 22TB
>>
>> Eliza Lau
>> Virginia Tech Computing Center
>> lau AT vt DOT edu
>>
>>



Ian Hobbs
little_brutus AT rogers DOT com
=======================================================
"Never argue with an idiot.  They drag you down to their level then beat
you with experience."
-Dilbert
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