> If it is powered on, then it is a warm spare :-) > Warm spares are a good idea. For some platforms, you can > spin down the > disk so it doesn't waste energy.
But I should note that we've had issues with a hot spare disk added to rpool in particular, preventing boots on Solaris 10u8. It turned out to be a known bug which may have since been fixed... Also, in a mirroring scenario is there any good reason to keep a warm spare instead of making a three-way mirror right away (beside energy saving)? Rebuild times and non-redundant windows can be decreased considerably ;) //Jim
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