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Understanding disk mirrors and concatenated
disks
Mirroring
The type of
mirroring
supported on the media vault is called
Redundant Array of Independent Disks
(RAID) RAID
-
1.
In RAID
-
1 mirroring, an identical copy of data written to a volume on one hard disk is written to a volume on a
second hard disk. Mirroring volumes reduces your total hard disk storage capacity by half. The advantage is that
if one hard disk fails, you have a copy of your data on the second hard disk.
Disk Concatenation
Disk
concatenation
(also called JBOD
) is another type of advanced storage configuration. This type of
configuration combines the available space from two or more hard disks into one large
logical volume
.