Raid 1 (Mirroring) - Fujitsu PRIMERGY RX200 S2 User Manual

A.2

RAID 1 (Mirroring)

The process of redundantly writing the same data to another hard disk is known as "mirroring".
Thanks to this, even if one of the hard disks fails, the system can continue its operation with the data
on the other hard disk. Data redundancy of RAID1 by mirroring enhances the high reliability of the
server, but the available capacity is that of one hard disk.
D2
D1
D0
Data
D0
=
D1
D2
Disk1
D0 D0
D1
D2
Disk2
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A RAID Level