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ASUS M3N-HT Deluxe Series
5-41
5.4 RAID congurations
Serial ATA hard disk drives as RAID sets.
• The NVIDIA
®
nForce™ 780a SLI Southbridge includes a high performance SATA
RAID controller that supports RAID 0, RAID 1, RAID 0+1, RAID 5 and JBOD for
six independent Serial ATA channels.
5.4.1 RAID denitions
RAID 0
(Data striping)
data in parallel, interleaved stacks. Two hard disks perform the same work as a
single drive but at a sustained data transfer rate, double that of a single disk alone,
thus improving data access and storage. Use of two new identical hard disk drives
is required for this setup.
RAID 1
(Data mirroring)
copies and maintains an identical image of data from
one drive to a second drive. If one drive fails, the disk array management software
directs all applications to the surviving drive as it contains a complete copy of
increases fault tolerance to the entire system. Use two new drives or use an
existing drive and a new drive for this setup. The new drive must be of the same
RAID 5
stripes both data and parity information across three or more hard
HDD performance, fault tolerance, and higher storage capacity. The RAID
applications, enterprise resource planning, and other business systems. Use a
minimum of three identical hard disk drives for this setup.
RAID 0+1 (RAID 10)
is data striping and data mirroring combined without parity
(redundancy data) having to be calculated and written. With the RAID 10*
Use four new hard disk drives or use an existing drive and three new drives for this
setup.
JBOD
(Spanning)
stands for Just a Bunch of Disks and refers to hard disk drives
redundantly on multiple disks that appear as a single disk on the operating system.
Spanning does not deliver any advantage over using separate disks independently