Depends how many tape drives you have and how many migration is set to use
I would have thought.
If there are four drives and migration is allowed to use them all it will.
Therefore four tapes will be mounted but its unlikely all will be written
to fully leaving you with several filling tapes as opposed to one full.

Also it must be quicker for it to stream to multiple drives as opposed to
one.

Cheers
John





"Roger Deschner" <rogerd AT UIC DOT EDU>

Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
04-Feb-2003 01:03
Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>




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        Subject:        Why so many Filling tapes?

I have a non-collocated sequential (tape) storage pool. Why should there
ever be more than one tape in Filling status? I have four. Why can't it
fill one up and then start another? These are Super-DLT tapes, so each
one means something - 200gb compressed.

I understand why I have lots of Filling tapes in a collocated tape pool
- that's the whole idea of collocation. But this is happening in a
non-collocated tape pool.

Roger Deschner      University of Illinois at Chicago     rogerd AT uic DOT edu
== "Sometimes it pays to stay in bed on Monday, rather than spending ===
===== the rest of the week debugging Monday's code." -Dan Salomon ======