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Date:      Thu, 7 Oct 2004 09:13:46 -0500
From:      Dan Nelson <dnelson@allantgroup.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Tape xfers topping out at 10K per transaction?
Message-ID:  <20041007141346.GA54170@dan.emsphone.com>
In-Reply-To: <20041007105050.GA7349@SDF.LONESTAR.ORG>
References:  <20041007025138.GA19296@SDF.LONESTAR.ORG> <20041007032416.GK3848@dan.emsphone.com> <20041007105050.GA7349@SDF.LONESTAR.ORG>

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In the last episode (Oct 07), Kevin A. Pieckiel said:
> I hit the same 10K limit when I use something like this:
> 
> # dd if=/dev/nsa0 of=/dev/null bs=64k
> 
> Is that because tar wrote to the tape with a 10k bock size that even
> dd can't read larger blocks?  That doesn't seem likely to me, but
> then again, what do I know?

Blocksize is determined when you write the tape.  If you print a
document on Letter-size paper, a person reading it can't request it in
A4-sized chunks :)

-- 
	Dan Nelson
	dnelson@allantgroup.com



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