Tape Changer and SCU

From: J Bacher (jb@jbacher.com)
Date: Mon Aug 14 2006 - 12:59:41 EDT


OS: Tru64 5.1
Tape: TZ89

Customer replaced the external scsi tape/changer with the same model and scsi ID
and rebooted.

Upon reboot:

CAM Equipment Device Table (EDT) Information:

     Bus/Target/Lun Device Type ANSI Vendor ID Product ID Revision N/W
     -------------- ----------- ------ --------- ---------------- -------- ---
      1 0 0 Direct SCSI-2 COMPAQ LOGICAL VOLUME 3.54 N
      1 1 0 Direct SCSI-2 COMPAQ LOGICAL VOLUME 3.54 N
      1 32 0 RAID SCSI-2 COMPAQ Smart Array 5300 3.54 N
      3 0 0 CD-ROM SCSI-2 COMPAQ CDR-8435 0013 N

         SCSI DEVICE DEVICE DRIVER NUM DEVICE FIRST
  HWID: DEVICEID HOSTNAME TYPE SUBTYPE OWNER PATH FILE VALID PATH
-------------------------------------------------------------------------
    61: 0 ns disk none 2 1 dsk0 [1/0/0]
    62: 1 ns disk none 2 1 dsk1 [1/1/0]
    63: 3 ns cdrom none 0 1 cdrom0 [3/0/0]
    66: 2 ns raid none 0 1 scp0 [1/32/0]
    67: 4 ns changer none 0 1 (null)
    68: 5 ns tape none 0 1 (null)

         SCSI DEVICE DEVICE DRIVER NUM DEVICE FIRST
  HWID: DEVICEID HOSTNAME TYPE SUBTYPE OWNER PATH FILE VALID PATH
-------------------------------------------------------------------------
    67: 4 ns changer none 0 1 (null)

       WWID:0c000008:0090-0d24-1355-0418

       BUS TARGET LUN PATH STATE
       ---------------------------------
       2 0 0 stale

         SCSI DEVICE DEVICE DRIVER NUM DEVICE FIRST
  HWID: DEVICEID HOSTNAME TYPE SUBTYPE OWNER PATH FILE VALID PATH
-------------------------------------------------------------------------
    68: 5 ns tape none 0 1 (null)

       WWID:04100022:"DEC TZ89 (C) DECCX908S8803"

       BUS TARGET LUN PATH STATE
       ---------------------------------
       2 4 0 stale

A "scu scan edt" (and "scu scan edt bus 2) does not find the tape drive so that
I can create the device drivers, etc.

Will dn_setup to install the tape build the edt and update the hwmgr table?

Also, are there freeware tools available to utilize the changer? (I've only used
commercial products in the past).

Thanks in advance.

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