SUMMARY: unable to use tape drive as any other user than root

From: Hardy, Andrew (Andrew.Hardy_at_marks-and-spencer.com)
Date: 01/15/04

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    Date: Thu, 15 Jan 2004 16:14:37 -0000
To: "sunmanagers" <sunmanagers@sunmanagers.org>

    Thanks to everyone who replied:

    Jay Lessert
    Paul Greidanus
    Bertrand Hutin
    Dom Clermont
    Lewis Handy
    Steve Edberg
    Joe Fletcher
    Adrian Meier

    The answer was actually simple to fix.......

    I changed permissions to the block device & everything now works okay.

    I just wasn't sure that changing permissions to block devices, would not cause
    problems.

    I would however, be interested in knowing the possible cause of why these
    permissions should have changed since the original OS install. Netbackup is
    the only thing I can think of ! If anybody knows of any possible reason, then
    drop me a line & I'll provide another summary.

    Many Thanks

    Andy Hardy

    > -----Original Message-----
    > From: Hardy, Andrew
    > Sent: 15 January 2004 12:45
    > To: 'sunmanagers'
    > Subject: unable to use tape drive as any other user than root
    >
    >
    > 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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