Scott R. Ehrlich wrote:
Hello to all:
I have an Overland tape library connected, via SCSI card, to an
out-of-box, full install of CentOS 5 install on an old PC.
I have a script that uses tar to archive data to tape and mtx to change
tapes. What I don't know, if possible, is to obtain the status of how
much tape is left in the drive. If I get a write failure, I'd like to
know if the tape is bad or has run out of space.
I know of bacula, amanda, and other backup methods, but I prefer to use
the simplest options possible, mainly because if a hard drive failure
occurs, which has happened at the last minute, I can take the original
CentOS 5 media from CD, install it, and get back up and running in no time.
So, any way to inquire remaining tape status and [estimated] capacity?
Thanks.
Scott
AFIAK there is no command within Linux to determine the capacity of a
tape. Probably because there is no general/generic way of doing this, if
it is possible at all.
Some tape drives are capable, if you send them the right SCSI command,
of reporting the remaining capacity. Whether your tape drive can do
that, and the exact command needed to get that information, would
require detailed knowledge of the SCSI command set it supports. Unless
you have that information it's very unlikely you'll be able to get what
you want.
--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@xxxxxxxxxxxx
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555
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