ADSM-L

Re: Why seperate Backup and Archive Pools

1999-01-28 13:38:36
Subject: Re: Why seperate Backup and Archive Pools
From: Dwight Cook <decook AT AMOCO DOT COM>
Date: Thu, 28 Jan 1999 12:38:36 -0600
     OK, my 2 cents worth...
     BUT if you mix them... reclamation will (for a while until random
     chance groups long term archives on a common tape) ensure the
     readability of the archive (during the reclamation process) OR point
     out that it can't be read :-(

     AND this all depends heavily on the amount of traffic and your
     collocation setting.

     later


______________________________ Reply Separator _________________________________
Subject: Re: Why seperate Backup and Archive Pools
Author:  vkm (vkm AT CORNELLC.CIT.CORNELL DOT EDU) at unix,mime
Date:    1/28/99 10:32 AM


At 12:26 PM 1/28/99 +0100, Stephan Rittmann wrote:
>normaly ADSM has seperat pools for backup and archive. What are the reasons
>for that. Can anybody give me some informations why I should seperat the
>pools.

Stephan,

We keep them separate because we find our archive data to be much more
static (unchanging) than our backup data.  By segregating the data to
different tape pools, we are able to acheive much higher utilization of the
archive tapes (95+%), than for our backup tapes.

What I would like to be able to do is to segregate the dynamic backup data
from the static backup data, to achieve similar increases in tape
utilization for our backup data.

..Paul