tapeinfo -f /dev/st0

Product Type: Tape Drive
Vendor ID: 'IBM     '
Product ID: 'ULT3580-HH4     '
Revision: '97F1'
Attached Changer API: No
SerialNumber: '1K10044361'
MinBlock: 1
MaxBlock: 16777215
SCSI ID: 0
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: 0x48
Density Code: 0x46
BlockSize: 0
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x1
DeCompType: 0x1
BOP: yes
Block Position: 0
Partition 0 Remaining Kbytes: -1
Partition 0 Size in Kbytes: -1
ActivePartition: 0
EarlyWarningSize: 0


up too 16MB variable Blocksize

On 16.06.2011 11:51, Tobias Dinse wrote:
> Hi Wolfgang,
>
> first thanks for your reply!
>
> bacula-sd.conf
>
>      Minimum block size = 1999999
>      Maximum block size = 1999999
>
> This is the only Value that we have changed. With lower Values our
> Backup was verry slow. We have LTO4 Tapes. Whats your Values?
>
> here is our stinit.def (only 1 line without comment header):
>
> {buffer-writes read-ahead async-writes}
>
> We made no changes to this File.
>
> regards
>
> Tobias
>
> On 15.06.2011 23:08, Wolfgang Denk wrote:
>> Dear Tobias Dinse,
>>
>> In message<4DF88A7D.1020904 AT stegbauer DOT info>   you wrote:
>>> still the same Kernel and I/O Error:
>>>
>>>
>>> Jun 14 14:26:10 xxxxxxxxxx kernel: [451873.506638] st0: Can't allocate 
>>> 1999999 byte tape buffer.
>> Why are you trying to allocate a 2 MB buffer for your tape driver?
>>
>> Bacula will write in 63 KiB blocks, so you should never need that
>> much.
>>
>> What does your /etc/stinit.def look like? [Or where else do you
>> configure your tape driver to use such buffers?]
>>
>> Best regards,
>>
>> Wolfgang Denk
>>
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