Re: [ADSM-L] Ang: Copypool storage advice
2011-04-08 02:14:29
The copypool is on LTO3 tapes. They are not database backups just incremental
server backups
Thanks & Regards
Paul
> -----Original Message-----
>
> It would be helpful to know what kind of the tape technology you're using
> since the
> reclamation threshold % is usually based off which technology is being used.
> Smaller tapes can usually have a small threshold while larger tapes requires a
> larger threshold.
>
> One way to reduce the amount of tapes is simply to reduce the threshold to
> something like 30 and let the reclaim process run until it's complete. This
> will require
> enough free tape drives to a) let reclamation run until it's complete b) do
> normal
> operations.
>
> There can be several reasons why you get so high pct reclaim. One is that
> you're
> running full database or application backups. Since this will expire a full
> backup
> every day, it will cause the reclaim on your tapes to rise. Splitting your
> copypool into
> separate ones categorized on the type of data stored (one for fileservers,
> one for
> application servers for example) is one way to go, using collocation is
> another.
>
> Best Regards
>
> Daniel Sparrman
>
> -----"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> skrev: -----
>
>
> I currently have a lot of copypool storage tapes which are between 50 - 60%
> utilization. Expiration runs daily and I run reclaimation daily on this
> copypool, set to
> 50.
>
> Is there anything I can do to try and consolidate the data onto fewer copypool
> tapes?
>
>
>
> Thanks & Regards
>
> Paul
>
>
>
> Paul Dudley
>
> Senior IT Systems Administrator
>
> ANL Container Line Pty Limited
>
> Email: <mailto:pdudley AT anl.com DOT au> pdudley AT anl.com DOT au
>
>
>
>
>
>
>
>
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