You could always backup the client (X) under a second nodename (X_ACTIVE):
Backup node X with your normal management classes/retention.  Backup node
X_ACTIVE with a management class set to only keep the active copy on your
special disk storage pool - anything inactive will be expired out.

Obviously, that means having the client backup twice, so that might not be
practicle in your environment.  Assuming that is tolerable, does anyone see
a 'fatal flaw' in that idea?

-Ken Mueller

-----Original Message-----
From: Martinez, Matt [mailto:matt AT IDEXX DOT COM]
Sent: Friday, September 09, 2005 3:22 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: A quick question about stgpool.


I was just mulling about the Idea to speed up large restores of small files,
without resorting to image backup, keeping everything on disk, or
collocating tapes. If I could keep just the active copy on disk I could
speed up the restore considerably while keeping inactive copies on tape.

Thank You,
Matt Martinez
Systems Administrator
IDEXX Laboratories, Inc.
Phone:207-856-0656
Fax:207-856-8320
matt AT idexx DOT com


-----Original Message-----
From: Pugliese, Edward [mailto:EPugliese AT NYBOT DOT COM]
Sent: Friday, September 09, 2005 1:58 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: A quick question about stgpool.

Out of curiosity, what is the reason for this requirement ?

TSM and an appropriate configured library can be pretty fast at restoring
files even if the last active version was backed up a long time ago.

What if you sent the data you wanted to keep in the diskpool to a
separate diskpool from other data and only cached that diskpool ?   If
you do a "dsmc sel" for just these files then they will always have the
active file in the diskpool.   This seems like a pretty drastic approach
though.

Maybe someone else will chime in with a better suggestion.




-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Martinez, Matt
Sent: Friday, September 09, 2005 12:16 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] A quick question about stgpool.

No, I would like to keep all the active files in a disk pool, even If they
have not changed in a long time. I don't need to keep all the files in the
Disk Pool, just the latest version. "Cache Migrated files" keeps all the
files backed up in the Disk Pool, I just want the active files in the Disk
Pool.

Thank You,
Matt Martinez
Systems Administrator
IDEXX Laboratories, Inc.
Phone:207-856-0656
Fax:207-856-8320
matt AT idexx DOT com


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