On Sat, Mar 14, 2009 at 12:56 PM, cpreston
<bacula-forum AT backupcentral DOT com> wrote:
>
> I'm resending this original poster's question because the connection between
> bacula-users and the forum was down for a time. There will be three more
> like this.
>
There is a forum now?
>
> Silvestri wrote:
>> Hi all,
>>
>> i have a big problem about restore data from bacula backup tapes.
>>
>> I have a Fujitsu-Server with Win 2003 Server like OS, and a Virtual Machine
>> with Red Hat Enterprise Linux 5 (guest OS, running Bacula Server).
>>
>> Two months ago I upgrade RAM on my server backup; after this date, all the
>> tapes used before upgrade are unreadable for bacula (no more tape label
>> found), but I can use all tapes made after RAM upgrading!!!!
>>
>> Backup operations run in correct way, without problems.
>>
>> If i try tu run ./btape to obtain informations about the label, this is the
>> returned error message:
>>
>>
>> block.c:999 Read error on fd=5 at file:blk 0:0 on device "LTO-2" (/dev/st0).
>> ERR=unable to allocate memory
>>
>>
>> I've tried to upgrade buffer size and min and max blocksize with mt and
>> bacula configuration files; in this case the error is:
>>
>> block.c:999 Read error on fd=5 at file:blk 0:0 on device "LTO-2" (/dev/st0).
>> ERR=input/output error
>>
>>
>> dmesg return this error:
>>
>> st0: Block limits 256 - 524288 bytes.
>> st0: Failed to read 67584 byte block with 64512 byte transfer.
>>
Looks to me that the bacula-sd is configured wrong. I mean what is the
setting for "Maximum Block Size". Is it less than 67584?
>> And from /var/log/messages:
>>
>> grep st0 /var/log/messages
>>
>> Mar 5 15:16:45 vmbckte kernel: st 0:0:1:0: Attached scsi tape st0
>> Mar 5 15:16:45 vmbckte kernel: st0: try direct i/o: yes (alignment 512 B)
>> Mar 5 15:29:01 vmbckte kernel: st0: Block limits 256 - 524288 bytes.
>> Mar 5 15:29:08 vmbckte kernel: st0: Failed to read 67584 byte block with
>> 64512 byte transfer.
>>
>> I use a SCSI TAPE Tandberg LTO-2, Ultrium-2 tapes
>>
>> My idea is that, in some way, Linux and/or Bacula have problems with new
>> configuration.
>>
>> Please Help Me! I have no more ideas....
>>
>> [Crying or Very sad]
>
>
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