My few cents:

We inserted a new stgpool *between* our disk pool and our old tape pool.
Now the new backups/archives are migrated from disk to the new tapes.
And we defined the new tapes as NEXTSTGPOOL for the old pool and used
the migration parms. (After the amount of data was reduced by expiration
processing).

But: with migration processing from tape to tape there is not more than
one migration process. You can use additional move data.

Regards

Roger Hohmann

Michael Bartl schrieb:
>
> Hi,
> we are in changing our tape technology from 3490E to Magstar. Right now our
> tape libraries have both types of drives installed. Now for migrating the
> 3490E-Pool to Magstar (about 1500 tapes) I've found the following
> possibilities:
>
> - Select some tapes manually and issue a MOVE VOLUME command to write the
> contents of the tape into the disk-pool or directly into the Magstar-pool.
> - Define a "NEXTSTGPOOL" for the 3490E-pool. Here it is also possible to
> make a decision between the diskpool and the Magstar-pool.
> - Define a "RECLAIMSTGPOOL" for the 3490E-pool. This is only possible with a
> sequential access pool, which means going directly to Magstar.
>
> I think the first alternative is great for the last remaining tapes that
> "refuse" to get migrated.
> I'm not sure if "NEXTSTGPOOL" or "RECLAIMSTGPOOL" is the more efficient way.
>
> Does somebody have experiences in this area?
>
> Best regards,
> Michael
> --
> Michael H. Bartl
> ADAC e.V. (Rechenzentrum, Organisation und Planung)
> Tel.: (089) 7676-4063, Fax: (089) 7676-8161
> mailto:michael.bartl AT zentrale.adac DOT de
> http://www.adac.de

--
Roger Hohmann
Roger Hohmann
Westdeutsche Landesbank Girozentrale
Division: 009 Services
Abteilung: 001-80622
Herzogstra_e 15
D - 40217 D|sseldorf
Tel.: +49211 826 8155
Fax : +49211 826 5393
mailto:roger_hohmann AT westlb DOT de