ADSM-L

Re: [ADSM-L] Stopping access to a filepool

2011-04-28 14:33:37
Subject: Re: [ADSM-L] Stopping access to a filepool
From: Johnny Lea <jlea AT UMC DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 28 Apr 2011 13:29:11 -0500
If I need to take my restorer DD down for any reason I just disable sessions, 
since all my nodes backup via NFS to the DD.
If it's going to be down for any length of time I will unmount the restorer and 
mount the replica to keep TSM going.  The DD 'filesys fastcopy' command run on 
the replica will allow me to access all the volumes and do away with the need 
of a diskpool.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Richard Rhodes
Sent: Thursday, April 28, 2011 8:17 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Stopping access to a filepool

How do you offline/stop_access to a filepool?

We have been implementing a DataDomain which is accessed as a filepool.
Prior to the DD, most backups went to the diskpool with some very large
backups going straight to tape.  When we would want to take the library
down, we would kill any processes/sessions writing to tape and then
take the tape drives offline.  This prevented any new sessions from
trying to access tape until the library work was completed.

Now were trying to figure out that the equivalent process is for the DD
and it's filepool.

Most backups still go into the diskpool, and the very large backups
go straight into the DD filepool.  If we want to take the DD down for
some reason, we would kill any processes/sessions writing directly
to the filepool, but we can't think of any way to prevent new sessions
from trying to access the filepool.   I guess I'm looking for some way
to offline the filepool.

Any thought/comments are most welcome!

Rick





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