AW: [suse-axp] Problems using tar and DDS4 tape drive

From: Geier, Ferdinand (Ferdinand.Geier@compaq.com)
Date: Fri Aug 10 2001 - 05:19:04 PDT

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From: "Geier, Ferdinand" <Ferdinand.Geier@compaq.com>
Date: Fri, 10 Aug 2001 14:19:04 +0200
Subject: AW: [suse-axp] Problems using tar and DDS4 tape drive

    Steve,

    the QLOGIC ISP controllers are not good for tape support! I tried it
    myself and could not even boot the box if the tape was powered on.
    This is a known issue for the isp1020 driver. Too bad! I recommend to
    change to an other (additional) controller for the tape.

    -fg

    -----Ursprüngliche Nachricht-----
    Von: Steve Graegert [mailto:steve@technologies.de]
    Gesendet am: Freitag, 10. August 2001 13:57
    An: suse-axp@suse.com
    Betreff: [suse-axp] Problems using tar and DDS4 tape drive

    Hi friends,

    I know that there is a list for SuSE-AXP, but posting to this list wasn't
    very successful (no replies at all). Further more I don't think this is an
    architecture problem, so I ask you in turn.
    My XP1000 (Alpha EV6, DP264, Tsunami, Monet) is equiped with a HP C5686A
    DDS4
    (20/40GB) tape drive that is connected to a QLOGIC ISP UW-SCSI controller
    using ID 4 (disks have IDs 0 to 3). While doing a tar to /dev/st0 - no
    matter
    which file or dir is archived - the system hangs after 2 to 4 seconds (reset

    is the only escape). All mt commands work well and compression is jumpered.
    I'm using SuSE 7.1 AXP running kernel version 2.4.4 and GNU file utils that
    come with SuSE, kernel tape support is activated. I'm not very familiar with

    tape drives, therefore no additional modifications have been done to the
    system.

    Output of "mt -f /dev/st0 status"

    drive type = Generic SCSI-2 tape
    drive status = -1946157056
    sense key error = 0
    residue count = 0
    file number = 0
    block number = 0
    Tape block size 0 bytes. Density code 0x8c (EXB-8505 compressed).
    Soft error count since last status=0
    General status bits on (41010000):
    BOT ONLINE IM_REP_EN

    I can't find an entry related to this issue in any log file, so I actually
    have no idea what has happened.

    Thanks for any suggestion,

    Steve.

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