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Date:      Tue, 14 Jun 2005 13:46:46 -0400
From:      Chuck Swiger <cswiger@mac.com>
To:        Alex Zbyslaw <xfb52@dial.pipex.com>
Cc:        freebsd-questions@freebsd.org, Damian Sobieralski <dsobiera@yahoo.com>
Subject:   Re: tape record bigger than supplied buffer
Message-ID:  <42AF1806.8000604@mac.com>
In-Reply-To: <42AEB46B.9050205@dial.pipex.com>
References:  <20050613234529.42333.qmail@web50403.mail.yahoo.com> <42AEB46B.9050205@dial.pipex.com>

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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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