Mailinglist Archive: opensuse (3378 mails)

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Re: [SLE] Polish That Disk
  • From: Derek Fountain <fountai@xxxxxxxxxxxxxxx>
  • Date: Thu, 25 Apr 2002 14:24:56 +0100
  • Message-id: <200204251324.OAA106954@xxxxxxxxxxxxxxxxxxxxxxxx>
> Many hard drives grow errors with use. The low-level format generally finds
> these "bad spots" and adds them to the "so called" grown defect list. This
> makes the space unseen by the higher-level reads/writes.

Actually, to be strictly accurate, different disks do different things on a
low level format. Some do nothing more than wipe the partition table and
other important areas of the surface. Many will do a write of zeros across
all sectors, some will do a write-verify, and some will do a write-read. Some
will build defect tables as you mention, some will actually do bad sector
reassigns there and then. It depends on the disk.

--
2:15pm up 3 days, 5:54, 1 user, load average: 0.15, 0.03, 0.01

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