Hi everyone....

The thread about compression on 3590 tapes got me taking a closer look at
our tape usage....We run a 3494 with 2 3590 drives with an AIX
(4.2.1) server, 3.1.2.20, holding 1TB+ at the moment....

I noticed that we are getting anywhere from 1:1 to 2.3:1 compression
ratios, which I guess given the mix of systems we do (Novell 5, NT, AIX,
Solaris, AFS, Oracle, SAP/R3) that isn't bad.  Would it be better if I
created separate tape pools for the different architectures?

One thing I did notice, however, was that some of our tapes are listed at
much less than 100% utilization, yet they are marked as full.  Why would
this be?  Would it be due to expired data on the tape, but not enough
expired to trigger a reclamation?

TIA.

-
Best regards,
Best regards,
Brian

+-----------------------------------------------------------------------+
| Brian T. Huntley                         Systems and Network Engineer |
| Campus Information Services, Clarkson University                      |
| Ph/FAX: 315.268-2292/6570                                             |
| bth AT clarkson DOT edu                                 www.clarkson.edu/cis |
+-----------------------------------------------------------------------+
 UNIX *is* user friendly. It's just selective about who its friends are.
        PGP Public Key available. finger bth AT clarkson DOT edu