Re: defragmentierung

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Article #22260

#22260

From: Marc SCHAEFER
Date: Tue, 25 May 1999 00:00

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freeman <freeman1@gmx.de> wrote:
> was ist anderes bei linux mit der daten verwaltung auf der hd
> als bei windowas?????

Files are pre-allocated. The fs is divided in allocation zones.
Files are never allocated sequentially, but with a biggest hole
policy. Every N blocks the allocation zone changes.

Basically, it resists quite well fragmentation, without the need
for very big block sizes.

Beware: ``fragmentation'' in that context is MS-* terminology. Proper
        terminology is ``non-contiguity''. UNIX meaning for fragmentation
        (coming from BSD) is the sub-allocation of wasted blocks.
        Linux doesn't have fragments (sub-allocation of bigger blocs),
        mostly because it doesn't use 8k or similar blocks, but 1k.

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From: Marc SCHAEFER <schaefer@alphanet.ch>
Subject: Re: defragmentierung
Date: 1999/05/25
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