[Veritas-bu] STK L700-Drives down

I seem to be having a similar problem, but on 3.2. If you ipl the drive,
then the tape will mount.
This is also in a SSO environment.

Sun recommend this patch

Patch #112066-01


*****************************************************************************************************************************


Description:
    Provides a workaround for a Solaris tape driver (st) bug where
    an attempted access of a drive when no tape is loaded, leads to
    a condition where the drive remains SCSI reserved.  When the drive
    remains SCSI reserved, attempts to access the drive from other
    hosts will fail, due to a system error such as "write protected
    or reserved".

    If a bridge is rebooted or some other error situation occurs
    while using the passthrough driver, the avrd process will resort
    to using the st driver in order to scan the drive.  With the
    st bug, the drive may be left SCSI reserved.

    If an administrator resets a DOWN'd drive, ltid will attempt to
    access the tape drive, which may leave the drive SCSI reserved,
    again because of the st bug.

Workaround:
    Disable SCSI reserve/release in the Solaris st drive
    configuration entry for all configured multihosted drives.
    See ST_NO_RESERVE_RELEASE in the st(7D) man page on Solaris.

        (Solaris Media Manager servers)





"David A. Chapa" <david AT xbpadm-commands DOT com>@mailman.eng.auburn.edu on
01/03/2002 03:05:44 PM

Sent by:  veritas-bu-admin AT mailman.eng.auburn DOT edu


To:   <veritas-bu AT mailman.eng.auburn DOT edu>
cc:
Subject:  [Veritas-bu] STK L700-Drives down


here's one for the group to hash out with me.

STK L700, Solaris 2.6 Master, v 3.4.1, Brocade Switches, Crossroads
Bridges,
SSO.

My client has been having an issue with TWO particular drives.  When a
backup job requests a tape mount, the library satisfies that request, but
never 'mounts' the tape.  It eventually writes to the syslog that the tape
is in a down'd drive.  Its only these two drives.

They have replaced the drives, the bridges and now have asked me to look
into it.  I took a pretty close look at it today, I think it is hardware.
The reason I am leaning there, is when I attempted to dismount the tape
from
the L700 panel, the command failed.  Netbackup at that point had already
given up on the two drives and I had already killed the backup jobs, so
there was nothing special going on with the NBU server.

Any thoughts out there?

Thanks

David

<><><><><><><><><><><><><><><><><><><><>
David A. Chapa
NetBackup Consultant
DataStaff, Inc.
http://www.consulting.datastaff.com
847 413 1144
---------------------------------------
NBU-LSERV AT datastaff DOT com - Adv. Scripting
http://www.xbpadm-commands.com

_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu