Asus DSBF-DM/SAS - Manual (Page 111)

ASUS DSBF-DM Series 5-1
5.1 Setting up RAID
The motherboard comes with the following RAID solutions:
DSBF-DM model
•
LSI Logic Embeded SATA RAID and the Intel Matrix Storage Manager
embeded in the Intel 6321ESB Southbridge supports Serial ATA hard disk
drives and RAID0, RAID1, and RAID10 configurations. The Intel Matrix
Storage Manager also supports RAID5 configuration.
• The Marvell ® 88SE6145 is a host bus adapter chip between PCI-Express
and Serial ATA (SATA)/Parallel ATA (PATA) devices. It employs the latest
Serial ATA (SATA) Phy technology, operating at 1.5 Gb/s or 3.0 Gb/s. The
motherboard supports the following RAID configurations: RAID0, RAID1,
RAID10 and RAID5.
DSBF-DM/SAS model
•
Intel Matrix Storage Manager embeded in the Intel 6321ESB Southbridge
supports Serial ATA hard disk drives and RAID0, RAID1, RAID10 and RAID5
configurations.
• LSI1068 PCI-X SAS controller supports SAS disk drives and RAID0, RAID1,
and RAID1E configuration.
5.1.1 RAID definitions
RAID 0 (Data striping) optimizes two identical hard disk drives to read and write
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
the data in the other drive. This RAID configuration provides data protection and
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
size or larger than the existing drive.
RAID 1-E
(Enhanced RAID 1) has a striped layout with each stripe unit having a
secondary (or alternate) copy stored on a different disk. You can use three or more
hard disk drives for this configuration.