It depends on the needs of the client.

No harm will come from this conflict. The worst case is some operational
inefficiency.

If the VTV is in-use by dfHSM for whatever reason, the reclaim function
will be incomplete
If it is in the process of  reclaim, dfHSM will wait for the VTV to
become available.

HTH,


<snip>
Seen a client using  MVS---VSM---SL8500  & doing HSM recycle(35).
Thought it was too high.

Found:
--------------------
http://www.lascon.co.uk/d016001.htm

Virtual Tape Principles

The HSM recycle function can conflict with the  VTS reclaim function, so
it is best to set the HSM percent 
valid parameter low, maybe 10%, and let the VTS do the work.

-------------------

What are the recommendations?
What % are you using? 

Another client was using 15% using a tape-less VTL (not STK/SUN)
</snip>

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