Jack,

I keep our primary tape storage pools at 50%.  I can always drop them lower if
necessary - that is my "margin."

We run expiration weekly to avoid the reclamation that would be caused by the
threshold being lower than 100%.

During the weekly maintenance I drop the threshold on off-site copypool tapes to
70%.  Otherwise they stay at 100.  Our copypool is a single-drive DLT library so
the threshold is chosen in part by the throughput of that little library.

Tab










Palmadesso Jack <Jack.Palmadesso AT SWPC.SIEMENS DOT COM> on 08/08/2000 
02:02:48 PM

Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>

To:   ADSM-L AT VM.MARIST DOT EDU
cc:    (bcc: Tab Trepagnier/Corporation/Laitram/US)
Subject:  Reclamation Threshold




I am curious as to what you all set your reclamation thresholds at.  Mine
are currently holding at 60% and at some sites I have the time to bring it
down even further.  Is it worth it to do so?  When does it become a waste of
time?  I just hate knowing that there are tapes out there that are half
empty that I could be using.

Jack