User manual

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Web Configuration
Disk Configuration - Page
The PowerBay NAS array supports five RAID methods of disk configuration. They
are RAID 0, RAID 1 with spare, RAID 5, RAID 5 with spare and RAID 6. When choos-
ing to use RAID with spare the spare disk’s icon will change its color to green.
Each of the RAID modes may be further configured to include full disk data encryp-
tion. RAID modes 0, 5, and 6 may be further configured to included array mirroring
to an attached eSATA drive.
Warning: Changing RAID mode will delete all data on the disks. Do not change the RAID configuration
unless you have first saved all of the data from the device to another storage location.
RAID 0:
RAID 0 (also called Striping) distributes
data across all disks in a way which can
improve throughput, while retaining full
capacity. However, RAID 0 provides no
fault tolerance so in case of possible
failure of any disk, all data will be lost.
Available capacity is the combined
capacity of all four disk cartridges.
RAID 1 with Spare:
RAID 1 (also called Mirroring) stores a
duplicate set of data onto at least one
other disk so that if one disk fails all
data can be recovered from the other
disk. The PowerBay NAS array imple-
ments RAID 1 in a way that provides
for even more redundancy, resulting in
maximum fault tolerance. It does this by (a) using two drives as mirrors instead of
just one and (b) using the fourth drive as a spare. The spare drive will automatically
rebuild as a fresh mirror whenever a failure of one of the other three drives is
detected. Available capacity is equal to that of only one disk cartridge.
Product
Overview
Installation
Web
Configuration
Knowledge
Base