Hi,
consider the following situation: You have a software raid that runs
fine but one disk is suspect (e.g. SMART says failure imminent or
something). How do you replace that disk?
Currently you have do fail/remove the disk from the raid, add a
fresh disk and resync. That leaves a large window in which redundancy
is compromised. With current disk sizes that can be days.
It would be nice if one could tell the kernel to replace a disk in a
raid set with a spare without the need to degrade the raid.
Thoughts?
MfG
Goswin
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