ADSM-L

Re: Changing copypools

2005-04-05 13:32:00
Subject: Re: Changing copypools
From: Robin Sharpe <Robin_Sharpe AT BERLEX DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 5 Apr 2005 13:31:29 -0400
Seems to me this process does not guarantee you have everything.

Hypothetical situation:

File A gets backed up from client to Pool A.
File A gets backed up to Copypool B.
FIle A becomes inactive.
Primary tape (in Pool A) gets destroyed, and does not get restored.  now
the only copy is in Copypool B.
THere is no way to recreate the primary copy (except restore volume....
will restore storage pool work?)
If you delete the volume from Copypool B, that version of FIle A is gone
forever.


Robin Sharpe
Berlex Labs


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I don't know if there is a change in 5.3 as we have not upgraded yet, but I
just went through this process in November/December when we upgraded our
tape environment.  The only option was to backup data from the primary pool
to the new copypool, just like you stated.  The good/bad news(depends on
how you look at it) is...we had 500 TB of data to do this with and over
6000 tapes to delete.  I ended up building command scripts to delete the
volumes, much easier than hitting each on separately.  Also the data copied
much quicker than expected and we were done in 2 months...

Ryan Miller

Principal Financial Group

Tivoli Certified Consultant
Tivoli Storage Manager v4.1


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Zoltan Forray/AC/VCU
Sent: Tuesday, April 05, 2005 10:49 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Changing copypools


Richard.  Where do you find the time to remember all this !

A very interesting idea/process. Would work great for small amounts of
data !

Unfortunately,  I have 20TB to move/recopy !

Thanks for the pointer, though !




Richard Sims <rbs AT BU DOT EDU>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
04/05/2005 11:31 AM
Please respond to
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


To
ADSM-L AT VM.MARIST DOT EDU
cc

Subject
Re: [ADSM-L] Changing copypools






On Apr 5, 2005, at 11:22 AM, Zoltan Forray/AC/VCU wrote:

> Am I correct that there is still (even in V5.3) no method to move all
> data
> from one copypool to another ?
>
> I have a need to move all copypool data from a 3590 pool to an LTO2
> pool !
>
> IIRC, unless things have changed, the only choice I have is to
> re-backup
> the primary pool to the new copypool and then manually "delete volume
> ...
> discarddata=yes" for the 300+ volumes in the old copypool !
>
> Please tell me there is an alternative !

A previously listed alternative:
   http://www.mail-archive.com/adsm-l AT vm.marist DOT edu/msg57424.html


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