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Date: Thu, 22 Jul 2004 15:45:09 +0100 (BST)
From: Jan Grant <Jan.Grant@bristol.ac.uk>
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To: Ian FREISLICH <if@hetzner.co.za>
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cc: SanD <sand@links.ru>
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Subject: Re: NEW TAR 
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On Thu, 22 Jul 2004, Ian FREISLICH wrote:

> SanD wrote:
>> Ian wrote:
>>> How does dump handle sparse files?
>>  Dump handles fine sparse files.
>
> Maybe I should have asked how does dump figure out that the files
> are sparse and if it's any more intelligent than a 2 pass read (I
> have no idea why 2 passes are required) or just blindly turning
> successive zeros into a seek offset, is there anything preventing
> BSD tar from doing the same?

Dump knows about the filesystem format; it talks that directly to the 
device.


-- 
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/
Political talk? / What is said can be unsaid / with good old BS
   -- ASCII haiku