Query regarding disk failure

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Hi,

If a single disk develops bad sector(s) that affects only a single stripe within a given RAID-5 configuration and these bad sectors are discovered when running a "check/resync" (echo check > /sys/block/mdX/md/sync_action), does this result in the entire disk being removed from the RAID? In other words, is access to the other good stripes on the drive disabled as well? If so, why is it done this way? In case the kernel version makes a difference to the behaviour, I'm working with 2.6.21.1.

Thanks,
Priya

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