Re: Defrag for NTFS

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#112

From: David Charlap
Date: Mon, 15 Jun 1998 00:00

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kpadgett <kpadgett@surfsouth.com> writes:
> 
> Absolutely right, NTFS can be fragmented.  Microsoft is buying the
> disk keeper program to go with their NT 5.0.

All file systems can become fragmented.  But some are able to prevent it
better than others.  FAT is notoriously bad, because it allocates
clusters using a simple "lowest numbered unused cluster" basis.

HPFS (what OS/2 uses), is far better.  It allocates files such that
their clusters are distributed throughout the drive, so files have room
to grown without fragmenting.  Also, apps can specify files' initial
sizes at creation time, and HPFS will attempt to pre-allocate contiguous
storage for the file.

What's surprising is that MS owns most of the technology that's in HPFS,
including the allocation schemes that resist fragmentation.  I wonder if
they're using it in NTFS or not.

-- David

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From: David Charlap <qqqq@xxx.yyy.zzz>
Subject: Re: Defrag for NTFS
Date: 1998/06/15
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