My original post and summary follow.
My thanks to all who replied!
Rasana
>We have an EXB-10e 8500c, 8mm drive with 5G capacity, full high. The stacker
>unit is a robotic tape changer that holds 10 tapes. We use this with Legato's
>networker version 4.2.4. The server is Sol 2.5.1.
>
>If I try to mount/label a tape in slot 10 of the jukebox, I get the error:
>Tue 15:37:50 media warning: /dev/rmt/0cbn reading: I/O error
>
>I get the same error *whichever* slot I try to label in.
>
>Also, for the 10th slot, I get this error when I try to inventory from
>command line (the inventory command on the GUI automatically got grayed out
>after our problems started):
>
>Jukebox EXB-10e:
> slot volume used pool mode
> 1: A.016 full A
> 2: B.017 full B
> 3: C.024 63% C
> 4: D.025 full D
> 5: E.006 full E
> 6: F.005 full F
> 7: G.018 G
> 8: H.019 90% H
> 9: I.015 100% I
> 10: -*
> *not registered in the NetWorker media data base
> ^^^^^^^^^^^^^^^^^^^^^ ???!!!
> 9 registered volumes, 2 less than 80% full.
> ^^^^^^^^^^^^^^^^^^^!!!!!! - This should be 10!
>
>I noticed the following messages in the /var/adm/messages file. On Thursday I
>tried to label a tape, the label was successful but I immediately got a FULL
>tape without having written anything to it.
>
>Mar 25 12:13:26 athena unix: st2 is /sbus@1f,0/espdma@e,8400000/esp@e,8800000/st@2,0
>Mar 25 12:13:26 athena unix: WARNING: /sbus@1f,0/espdma@e,8400000/esp@e,8800000/st@2,0 (st2):
>Mar 25 12:13:26 athena unix: Error for Command: write Error Level: Fatal
>Mar 25 12:13:26 athena unix: Requested Block: 194 Error Block: 194
>Mar 25 12:13:26 athena unix: Vendor: EXABYTE Serial Number:
>Mar 25 12:13:26 athena unix: Sense Key: Media Error
>Mar 25 12:13:26 athena unix: ASC: 0x3 (peripheral device write fault), ASCQ: 0x2, FRU: 0x0
>Mar 25 12:13:26 athena unix: WARNING: /sbus@1f,0/espdma@e,8400000/esp@e,8800000/st@2,0 (st2):
>Mar 25 12:13:26 athena unix: Error for Command: read Error Level: Fatal
>Mar 25 12:13:26 athena unix: Requested Block: 0 Error Block: 0
>Mar 25 12:13:26 athena unix: Vendor: EXABYTE Serial Number:
>Mar 25 12:13:26 athena unix: Sense Key: Media Error
>Mar 25 12:13:26 athena unix: ASC: 0x9 (track following error), ASCQ: 0x0, FRU: 0x0
>Mar 25 12:13:29 athena unix: WARNING: /sbus@1f,0/espdma@e,8400000/esp@e,8800000/st@2,0 (st2):
>Mar 25 12:13:29 athena unix: Error for Command: read Error Level: Fatal
>Mar 25 12:13:29 athena unix: Requested Block: 0 Error Block: 0
>Mar 25 12:13:29 athena unix: Vendor: EXABYTE Serial Number:
>Mar 25 12:13:29 athena unix: Sense Key: Media Error
>
>So, before I get my boss to spend the big bucks on emergency repairs (tomorrow
>morning), I'll like to confirm that this is indeed a problem with the tape
>drive. I'd appreciate any help!
Responses:
---------------------------------------------------------------------------
From: jnguyen@everest.TO.HAC.COM (John Nguyen)
I have seen problem like this, cleaning was fix my problem, try yours.
Comment: I did, before I posted. It did not help.
---------------------------------------------------------------------------
From: Chan Cao <CCao@exapps.com>
I'm afraid the news is not good and pretty sure it's the drive's problem.
When getting a new drive, you may consider leaving the stacker on to
avoid reprogramming the robot arm.
In short, get a new drive, replace, have the stacker manual ready if you
have to reprogram. Follow this procedure and you'll get less headache.
Comment: I opened it up, but did not want to risk damaging anything (thanks
for the warning, Chan), so I shipped the whole unit to West Coast Computer
Exchange. Their prices seem pretty reasonable.
West Coast Computer Exchange, Inc.
11167-A Trade Center Drive
Rancho Cordova, CA 95670
916-635-9340 FAX 916-635-9485
---------------------------------------------------------------------------
From: "Eric J. Ostrander" <ejo@astro.phys.cmu.edu>
This may sound stupid, but are you using data quality tapes?
Comment: Not stupid at all. I am.
---------------------------------------------------------------------------
From: Dave <dburwell@telecom.com>
It is dead. I have the same drive, and it was giving similar error messages.
I sent it to two different repair places, and it is still broken.
Comment: I hope I have better luck at this.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~ Rasana Atreya Voice: (415) 476-3623 ~
~ System Administrator Fax: (415) 476-4653 ~
~ Library & Ctr for Knowledge Mgmt, Univ. of California at San Francisco ~
~ 530 Parnassus Ave, Box 0840, San Francisco, CA 94143-0840 ~
~ atreya@library.ucsf.edu ~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~