Re: Any advantages of Unix formatting
Re: Any advantages of Unix formatting
- Subject: Re: Any advantages of Unix formatting
- From: Chris Gehlker <email@hidden>
- Date: Mon, 03 Sep 2001 19:11:48 -0700
On 9/3/01 6:15 PM, "Andreas Monitzer" <email@hidden> wrote:
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On Tuesday, September 4, 2001, at 02:49 , Chris Gehlker wrote:
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> On 9/3/01 5:04 PM, "Andreas Monitzer" <email@hidden> wrote:
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>> UFS is actually slower than HFS+ on Darwin/Mac OS X, probably because
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>> Apple didn't optimize the driver that much.
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> Well maybe but UFS is also a clunky old file system that doesn't even use
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> an
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> extents tree. HFS+ is comparatively much more modern.
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But HFS+ is much more fragile. Some structural problems can't be fixed
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except by reformatting or risking the loss of all data. If you do a fsck
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on an UFS-device, it's like new (except the data is still there :)
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afterwards, even if it was severely damaged (I already had that experience)
I wouldn't count on this to the point of not backing up important files on
UFS.
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Of course, B-tree searching is much faster, but Sherlock - the only
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interface to it on Mac OS X - is unusable anyways.
Sherlock does definitely suck. But Sherlock is hardly the only app to search
the catalog B-tree. And extents are also stored in a B-tree which probably
account for more of the speedup.
Of course HFS+ is hardly the last word in file systems. I want something
better than either UFS or HFS+.
--
Nature will bear the closest inspection. She invites us to lay our eye
level with her smallest leaf, and take an insect view of its plain. -Henry
David Thoreau, naturalist and author (1817-1862)