Date: Sun, 29 Oct 2000 23:23:56 -0800 (PST) From: Matt Dillon <dillon@earth.backplane.com> To: "Leif Neland" <leifn@neland.dk> Cc: "Ryan Thompson" <ryan@sasknow.com>, <freebsd-hackers@FreeBSD.ORG> Subject: Re: Filesystem holes Message-ID: <200010300723.e9U7NuB73306@earth.backplane.com> References: <Pine.BSF.4.21.0010291907320.27883-100000@ren.sasknow.com> <01a801c04236$ed0a0d20$0e00a8c0@neland.dk>
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:>
:What will happen, if somebody (possibly you, as mahordomo says), tries to
:make a backup of that file.
That will depend on the backup program. dump/restore can handle
holes just fine. tar can handle them in a 'fake' way, and you have
to tell it. Programs like 'cp' cannot handle holes.... they'll
copy the zero's.
:I'd be afraid to create something which could easily blow up by having
:normal operations applied to it.
:
:Leif
Yes, there's a high probability of that. It's one of the reasons
why people typically use the feature, at least not for 'permanent'
data sets.
-Matt
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