tape record bigger than supplied buffer

Chuck Swiger cswiger at mac.com
Tue Jun 14 17:44:47 GMT 2005


Alex Zbyslaw wrote:
> Damian Sobieralski wrote:
>> I added the following to my tape drive area in the bacula-sd-conf:
>>
>> Minimum Block Size = 64512
>> Maximum Block Size = 64512
>>
>>  I'm not seeing those errors any longer.  I've restored and all seems
>> to go well.
>
> Good stuff!  Did that number come out of your tape drive manual, in the 
> end?  Just wondering why 64512 rather than 65536...

It's 63K.  I've seen recommendations elsewhere to use a tape blocksize of 63K 
rather than 64K if hardware compression is enabled, because sometimes the data 
doesn't have a positive compression ratio...

-- 
-Chuck



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