unable to use tape drive as any other user than root

From: Hardy, Andrew (Andrew.Hardy@marks-and-spencer.com)
Date: Thu Jan 15 2004 - 07:45:05 EST


I recently uninstalled Veritas Netbackup from an E3500, which was also
previously attached to a tape robot.
I have since attached a single DLT7000 tape drive onto the server, but am
unable to write or get the status of the drive, by any user other than
"root".
I need to be able to do backups to this device, as user "oracle".

I have replaced the st.conf file, back to it's original state, from before the
Netbackup installation.
Does anyone know if this is related to the previous Netbackup installation and
/ or know of any fixes ?
If I attach this device to a different server I can then run a status to this
device as any user.

Many Thanks

Andy Hardy

As root user:

mt -f /dev/rmt/0 status

Sun DLT7000 tape drive:
sense key(0x6)= Unit Attention residual= 0 retries= 0
file no= 0 block no= 0

As oracle user:

mt -f /dev/rmt/0 status

/dev/rmt/0: write protected or reserved

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