[PLUG] Replacing hard drive

Paul Mullen pem at nellump.net
Thu Sep 2 14:43:02 PDT 2004


On Thu, Sep 02, 2004 at 02:37:00PM -0700, Ed Sawicki wrote:

> The manufacturer has built spare disk sectors into the drive. As
> sectors fail, they're automatically detected by the drive and replaced
> by spare sectors.  Once the pool of spare sectors is exhausted, the
> drive is no longer able to do this and bad sectors become visible to
> the outside world.

For those interested in reading further, Seagate has a pretty decent
engineering paper on their site:

<http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf>


Paul





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