DATA MIRRORING

DATA MIRRORING

ABSTRACT:

There are various techniques that are used for achieving data recovery by the means of data redundancy. The RAID (Redundant Array of Independent Disks) devices use various data mirroring techniques. The chief advantage of mirroring is that it provides not only complete redundancy of data, but also reasonably fast recovery from a disk failure.

In this document we are going cover the basic idea behind the mirroring techniques.
The mirroring is actually creating another copy of data which can be retrieved immediately after the data loss.

The mirroring techniques help to improve the read performance considerably. The techniques like Network data mirroring, Asynchronous data mirroring and also Remote data mirroring are considered for the discussion in following sessions.

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