Hi Jim, 

As far as I know the PREFIX does not do anything if you have barcode
labeled tapes. The PREFIX is used only for non-barcode labeled tapes.
Mind you, if you have a library with a barcode reader, you always should
use barcode labeled tapes.

Met vriendelijke groet, With kind regards,
Richard van Denzel.
 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Jim Zajkowski
Sent: dinsdag 14 februari 2006 13:03
To: ADSM-L AT VM.MARIST DOT EDU
Subject: LTO devclass and PREFIX?

Hi there,

We have the venerable IBM 3584, and I created a devclass "dbtape" with a
prefix of "TDB".  I then printed a set of barcodes TDB001L2 ...
TDB015L2.
Checked in the tapes as scratch, labels=b, etc.  q libvol shows them.

When I went to backup db devc=dbtape, it picked a scratch tape with a
different prefix.

Does the PREFIX option actually do anything on an LTO library?

What I want is to use the PREFIX attribute to control which tapes can be
used for a database backup, rather than maintaining a file of
appropriate volume labels.

TIA,

--Jim