DLT tape errors -- UPDATE

Bill Gurley bgurley at utk.edu
Tue Aug 5 14:33:01 CDT 2003


Yes, I'm using the cartridges that Dell shipped with the machine.  One 
cartridge comes with the drive, plus I ordered an extra 5-pack.  They 
are all:

Dell DLTtape IV
"For DLT 8000, DLT1, and VS80"

My tape drive is a 110T DLT VS 80 Tape Drive.

So that sounds like they are compatible.

Thanks,



SJP wrote:
> Bill,
> 
> "Medium Error" suggests the tape cartridge has issues.
> 
> Are you using a compatible tape cartridge for this tape drive?
> 
> -Steve
> 
> ----- Original Message ----- 
> From: "Bill Gurley" <bgurley at utk.edu>
> To: <linux-poweredge at dell.com>
> Sent: Tuesday, August 05, 2003 2:15 PM
> Subject: Re: DLT tape errors -- UPDATE
> 
> 
> 
>>An update on my DLT problems...
>>
>>I finally got desperate and blew away my RH 9 installation.  I formatted
>>partitions and did a quick-and-dirty RH 8 install, using the default RH
>>kernel.
>>
>>I just now did a 'tar cvf /dev/nst0 *' from the / directory.
>>
>>I THOUGHT it was actually going to work, because it went for a long
>>time;  longer than before.  But eventually it again stopped with:
>>
>>tar: /dev/nst0: Wrote only 0 of 10240 bytes
>>tar: Error is not recoverable: exiting now
>>
>>
>>And syslog (again) reports:
>>
>>Aug  5 13:13:20 nucleus kernel: st0: Error with sense data: Info
>>fld=0x0, Deferred st09:00: sense key Medium Error
>>Aug  5 13:13:20 nucleus kernel: st0: Error with sense data: Info
>>fld=0x1, Current st09:00: sense key Medium Error
>>Aug  5 13:13:20 nucleus kernel: Additional sense indicates Write error
>>Aug  5 13:13:20 nucleus kernel: st0: Error on write filemark.
>>
>>
>>Ultimately, I intend to use Amanda for backups, but I haven't set that
>>up yet.  It seems that this simple tar backup should work.  I just did a
>>test backup of a differrent RH8 (non-RAID) machine with an external HP
>>Surestor DAT drive attached to an Adaptec controller.  I used the same
>>command 'tar cvf /dev/nst0 *'.  It completed with only an expected error
>>because I neglected to exclude /proc.  The backup on that machine
>>completed, and I can do 'tar -tf /dev/nst0 > test.txt' to generate a
>>list from the tape.
>>
>>Do any of the Dell folks have a suggestion for me?  I have just had this
>>machine a few days.  I'm worried that if I call Dell support on this,
>>they will want to talk in terms of Windows backup software, which I
>>don't have (and don't want).
>>
>>Thanks for all of your suggestions.
>>
>>
>>
>>Bill Gurley wrote:
>>
>>>Hello Folks:
>>>
>>>I'm new to this list.  I have a brand new PowerEdge 2600 set up with
>>>RAID5 and a PowerVault 110T DLT VS 80 internal tape drive.
>>>
>>>I have set up Redhat 9, and wanted to backup some stuff to tape.  I did
>>>one little test backup of /tmp, but that's about all that has worked.
>>>Every time I try to back up using tar, it begins to work, but then
> 
> fails.
> 
>>>Here is some info:
>>>
>>>The tape drive is the sole device on an Adaptec AHA-3960D controller.
>>>
>>>'mt status' gives:
>>>
>>>[root at nucleus root]# mt status
>>>SCSI 2 tape drive:
>>>File number=0, block number=0, partition=0.
>>>Tape block size 0 bytes. Density code 0x40 (DLT1 40 GB, or Ultrium).
>>>Soft error count since last status=0
>>>General status bits on (41010000):
>>> BOT ONLINE IM_REP_EN
>>>
>>>
>>>Here is a typical command I've been using:
>>>
>>>tar cvf /dev/st0 etc
>>>
>>>
>>>With this command, the contents of /etc begin rolling across the screen,
>>>until:
>>>
>>>tar: /dev/st0: Wrote only 0 of 10240 bytes
>>>tar: Error is not recoverable: exiting now
>>>
>>>
>>>Syslog reveals:
>>>
>>>Aug  4 17:02:22 nucleus kernel: st0: Error with sense data: Info
>>>fld=0x0, Deferred st09:00: sense key Medium Error
>>>Aug  4 17:02:22 nucleus kernel: st0: Error with sense data: Info
>>>fld=0x1, Current st09:00: sense key Medium Error
>>>Aug  4 17:02:22 nucleus kernel: Additional sense indicates Write error
>>>Aug  4 17:02:22 nucleus kernel: st0: Error on write filemark.
>>>
>>>
>>>This leaves the tape drive flashing its "Clean/Media" LED, which clears
>>>after ejecting the tape and re-inserting it or another tape.  Yes, I
>>>have tried using the cleaning cartridge.  (Remember:  This is a BRAND
>>>new machine, but I cleaned it anyway.)  I have tried three different
>>>brand new tapes.
>>>
>>>What gives?  I have tried forcing various block sizes with the tar
>>>command, and it doesn't help.
>>>
>>>
>>>Thanks for any assistance,
>>>
>>>
>>>-Bill-
>>>
>>>-------------------------------------------------------------
>>> Bill Gurley, Technical Director  |
>>> Department of Chemistry          |    Consider Linux and
>>> Univ. of Tennessee, Knoxville    |    Open Source Software!
>>>
>>
>>
>>-- 
>>-Bill-
>>
>>-------------------------------------------------------------
>>  Bill Gurley, Technical Director  |
>>  Department of Chemistry          |    Consider Linux and
>>  Univ. of Tennessee, Knoxville    |    Open Source Software!
>>
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> 
> archives at http://lists.us.dell.com/htdig/
> 


-- 
-Bill-

-------------------------------------------------------------
  Bill Gurley, Technical Director  |
  Department of Chemistry          |    Consider Linux and
  Univ. of Tennessee, Knoxville    |    Open Source Software!




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