[Nottingham] Big biiig problem regarding IDE-RAID

Martin nottingham at mailman.lug.org.uk
Wed Jul 16 12:00:11 2003

Lee wrote:
> What I can't seem to find out is how IDE RAID handles bad sectors, okay,
> I can keep going in the event of a total drive failure, but what happens
> if one drive develops a clump of bad sectors, ...

The later drives have a firmware feature whereby they have a few sectors 
kept spare (unused) that are then automatically mapped into use to 
replace bad sectors elsewhere.

Otherwise, its an OS filesystem task to maintain a table of bad sectors.


Martin Lomas