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Disk mirroring

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by joseph.stahl

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If the primaty disk fails and the secondary(mirrored) disk also fails, what happens?

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by jamesrl

Having a mirrored disk is no guarentee - you should always have a tape backup. You may lose a day's data.

If the primary and secondary go, you buy a new primary, secondary and controller, install them, and restore from tape backup. You could try new disks with the existing controller, but its faster to eat the cost and get a new controller - check the old controller in a test system later to see if it can be kept as a spare.

James

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