Date: Tue, 14 Jun 2005 23:15:33 +0100 From: Alex Zbyslaw <xfb52@dial.pipex.com> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-questions@freebsd.org, Damian Sobieralski <dsobiera@yahoo.com> Subject: Re: tape record bigger than supplied buffer Message-ID: <42AF5705.6000904@dial.pipex.com> In-Reply-To: <42AF1806.8000604@mac.com> References: <20050613234529.42333.qmail@web50403.mail.yahoo.com> <42AEB46B.9050205@dial.pipex.com> <42AF1806.8000604@mac.com>
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Chuck Swiger wrote: > 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... > Thanks for the tip! That trailing 512 should have been a giveaway... --Alex
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