I thought I'd summarize the problem I had and how it was resolved.

Problem: Diskpool is at 100% Util with 0% migratable, MigDelay=0,
MigCont=yes, CacheMigFiles=no. Updating stgpool hi/lo threshold to 0 or
issuing 'migrate stgpool' command results in 

ANR4972i "migration is not needed for the storage pool name".

Resolution:

Perform 'move data' on the disk volumes. From 'move data' help:

'When you move files from a random access volume, the server erases any
cached copies of files on the volume.'

After sometime the cached files are removed and the diskpool is back to 0%.

Thanks for your help all.

------
Matthew Large
TSM Consultant


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