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zoobink · Beginner Joined: 01 Feb 2004 Posts: 9 Topics: 1

When I run Primary Migration, HSM always asks for ML2 tapes to be mounted. Is there a way of running Primary Migration but only allow the migration to ML1 DASD?

Sometimes there is a shortage of available 3590 drives and it would be good if we could avoid the ML2 allocation.

warp5 · Posted: Mon Feb 02, 2004 1:57 am Post subject:

Some of your management classes are probably migrating directly from disk to ML2 ! This is probably done to prevent ML1 from getting full with huge datasets. Check into it.

zoobink · Beginner Joined: 01 Feb 2004 Posts: 9 Topics: 1

Yes they are. I want to know if there is a way that I can selectively bypass these migrations.

Sorry, maybe my question wasn't exactly clear.

For instance if I want to prevent all recall processing from tape volumes but allow recall processing from DASD volumes, I can issue the
command "HOLD RECALL(TAPE)"

So what I'm after is a way of achieving the same with migration.

If auto migration is running and asks for a tape to be mounted after the drive is allocated, but one cannot, then HSM will issue. ARC0560E MIGRATION LIMITED: NO TAPE MIGRATION VOLUME AVAILABLE

Migration will then continue but only migrate to ML1 volumes.

So, what I'm after is probably a storage patch that could be issued to make HSM believe that migration is LIMITED.