Which headers?
IIRC, TSM uses ANSI-standard tape labeling. So the VOL1 (tape label) is created
when the tape is initialized and doesn't get updated/re-written from then on.
Each file should have a 'HDR1' label; this belongs to the file, so it will get
written to the 'new' tape. From what I've read, TSM uses the file name field of
the HDR1 label to store a bit-map pointer to the TSM database record that
describes the file (the reason you can't recover the tape data without the TSM
database).
Tom Kauffman
NIBCO, Inc
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Matthew Large
Sent: Friday, June 20, 2008 6:38 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Does reclamation rewrite data block headers?
Guys,
We are having some problems with VTL machines, and the support guys would like
to find out if TSM rewrites the data headers when moving from tape-to-tape.
Cheers,
Matthew
------
Matthew Large
TSM Consultant
Storage Services
Barclays Wealth Technology
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