On 02.02.2007 17:24, Martin Simmons wrote:
> The error was from Drive-2 but your second log entry is from Drive-1.  Maybe
> Drive-2 is faulty or needs cleaning?  Also the tape may be intermittenly
> faulty.

The error occurred on 2 different drives and 4 different tapes.
None of the drives requests cleaning, but i will try cleaning.

> Was anything written to the syslog around 01-Feb 00:35?

Thanks for this hint; there was:

>> Feb  1 00:35:59 elablnsrv04 kernel: st2: Error with sense data: <6>st2: 
>> Current: sense key: Aborted Command
>> Feb  1 00:35:59 elablnsrv04 kernel:     Additional sense: Data phase error
>> Feb  1 00:35:59 elablnsrv04 kernel: Info fld=0xfc00


I checked the log for more error messages and found the following (from
earlier brocken backup jobs):

>> Jan 28 00:17:19 elablnsrv04 kernel: st2: Error with sense data: <6>st2: 
>> Current: sense key: Hardware Error
>> Jan 28 00:17:19 elablnsrv04 kernel:     Additional sense: Internal target 
>> failure
>> Jan 28 00:17:19 elablnsrv04 kernel: Info fld=0xfc00
>> Jan 28 00:47:22 elablnsrv04 kernel: st0: Error with sense data: <6>st0: 
>> Current: sense key: Hardware Error
>> Jan 28 00:47:22 elablnsrv04 kernel:     Additional sense: Internal target 
>> failure
>> Jan 28 00:47:22 elablnsrv04 kernel: Info fld=0xfc00
>> Jan 28 01:08:05 elablnsrv04 kernel: st0: Error with sense data: <6>st0: 
>> Current: sense key: Hardware Error
>> Jan 28 01:08:05 elablnsrv04 kernel:     Additional sense: Internal target 
>> failure
>> Jan 28 01:08:05 elablnsrv04 kernel: Info fld=0xfc00

When the error occurs there are always exactly 2 blocks missing on the tape:
Bacula-log:
        Error: Re-read of last block OK, but block numbers differ. Last
block=440503 Current block=440505.

with different block-numbers but every time a difference of 2.

Andreas


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