On Mon, 2 Apr 2001, Prather, Wanda wrote:

> You can set mount retention to 0.
> I don't know of any reason not to, in a robotic library.

I know of a reason.  A bad TSM version (3.7.x)

In observing my 3.7.x system with mountret=0, I have found during TAPEPOOL
migration WITH Collocation that multiple clusters going to the same tape
will cause the tape to be dismounted and then remounted.

This also occurs with migration from diskpool to tapepool.

In my opinion its a bug or B.A.D. (broken as designed)  It wasn't this way
with 3.1.2.20 !!!   I am told its fixed back to the old behaviour in
3.7.4 + beyond.  I  have only found it working in 4.3.x

 Sigh.

... joe.f.