To resync (or re-silver), many disk mirror
solutions perform a complete copy of the data from the operational copy to the stale copy.
But a disk mirror
does not protect against data deletions (when a file is deleted, it is simultaneously deleted from both sides of the mirror), nor does it protect against power outages or other disasters that shut down the data center.
The disk mirrors
the book, except that the links to references are hot.
Unlike conventional disk mirrors
, it cannot serve as a failover data source to protect against hardware failures.
However, tape backup should accompany disk mirrors
to most cost effectively address the growing intrusion and corruption problem.
If you have applied business continuance disk mirrors
, then double the amount to $350,400.