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posted to rec.boats
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external usenet poster
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First recorded activity by BoatBanter: Jul 2006
Posts: 10,492
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A nice apple story
On Wed, 16 Nov 2011 11:07:53 -0500, wrote:
You can hot swap any SATA drive in any win OS, XP or newer.
I was playing with drives the other day and as soon as you plug them
in, XP finds them and installs them.
I am not sure the RAID BIOS on the controller card would actually
rebuild the drive tho since that is usually only accessible on a boot.
I think you can mirror in the OS. I just haven't done it.
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It's my understanding, perhaps incorrect, that the RAID controller has
to support hot swapping. The OS does not see drives unless the
controller enables them. There are different modes of RAID of
course, but assuming you are in a mode that supports dynamic rebuild
of a failed/failing disk, the controller would look for a new drive,
perform the rebuild operation, disable the old drive and enable the
new drive. All of that would be transparent to the OS as I understand
it.
A company named EMC pioneered dynamic RAID on IBM mainframes back in
the early 90s. It totally changed the way large shops managed their
DASD farms and EMC was eating IBM's lunch for a while.
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