Bacula-users

[Bacula-users] Cannot append to LTO-4 tape

2011-10-26 02:48:13
Subject: [Bacula-users] Cannot append to LTO-4 tape
From: Andrea Venturoli <ml AT netfence DOT it>
To: bacula-users AT lists.sourceforge DOT net
Date: Wed, 26 Oct 2011 08:28:05 +0200
Hello.

This has been brought up several times, but I can only find questions, 
not a definite answer.

I have a LTO-4 tape drive on FreeBSD 7.3/amd64.
> # camcontrol devlist
> <TANDBERG LTO-4 HH W519>           at scbus0 target 2 lun 0 (sa0,pass0)

I can write tapes and restore them, but, after a reboot or after I 
unmount the tape, I cannot append to them anymore. This happens with 
every tape.
I'm using bacula 5.0.3 and I remember this used to work in the past; 
however I cannot remember when it stopped working.

What bacula says:
> 26-Oct 07:27 golia-sd JobId 16763: Volume "Out001" previously written, moving 
> to end of data.
> 26-Oct 07:43 golia-sd JobId 16763: Error: Unable to position to end of data 
> on device "LTO-4" (/dev/nsa0): ERR=dev.c:956 ioctl MTEOM error on "LTO-4" 
> (/dev/nsa0). ERR=Input/output error.
> 26-Oct 07:43 golia-sd JobId 16763: Marking Volume "Out001" in Error in 
> Catalog.

What I see in the logs:
> Oct 26 07:43:29 xxxxx kernel: (sa0:mpt0:0:2:0): CAM Status: SCSI Status Error
> Oct 26 07:43:29 xxxxx kernel: (sa0:mpt0:0:2:0): SCSI Status: Check Condition
> Oct 26 07:43:29 xxxxx kernel: (sa0:mpt0:0:2:0): MEDIUM ERROR info:7fff 
> asc:14,0
> Oct 26 07:43:29 xxxxx kernel: (sa0:mpt0:0:2:0): Recorded entity not found
> Oct 26 07:43:29 xxxxx kernel: (sa0:mpt0:0:2:0): Retries Exhausted

I can complete all the tape tests with no errors.

What should I do?
Any help appreciated.

  bye & Thanks
        av.

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