Albatron PX925X Series, Руководство пользователя

Страница: 54 / 64

PX925X/PX925XE Series
50
Appendix II: SATA RAID Setup
Introduction to RAID
RAID (Redundant Array of Independent Disks) technology is a sophisticated disk
management system that manages multiple disk drives. It enhances I/O performance and
provides redundancy in order to prevent the loss of data in case of individual disk failure.
The SATA RAID facility on the PX925X-R/ PX925 PRO-R/ PX925XE PRO-R mainboard provides
RAID 0 and RAID 1 functionality.
RAID 0 (disk striping) Striping is a performance-oriented, non-redundant disk storage
technology that uses multiple disks to form a larger virtual disk. Data is then striped or
mapped across all the physical disks. In this way the disk drives can perform multiple I/O
operations in parallel, enhancing performance.
RAID 1 (disk mirroring) With Disk Mirroring there is a redundant disk that mirrors the
main disk. Data that is written to the main disk is also written to the redundant disk. This
redundancy provides fault tolerant protection from a single disk failure. If a read/write
failure occurs on one drive, the system can still read and write data using the other drive.
On this mainboard, RAID 0 and RAID 1 cannot be used together which means they cannot
be used in the same RAID volume. However, you can build a RAID 0 volume and a separate
RAID 1 volume on the same set of disks. The minimum number of hard drives for a RAID
volume is 2.
SATA RAID Configuration
(Using the RAID Option ROM Utility)
Creating a New RAID volume
Before creating a RAID Volume , make sure you have installed at least two SATA drives
into the system. It is recommended that you use the same capacity drives for all the SATA
devices you will configure with RAID.
1. First, you have to configure the “Enhanced Mode” option and the “RAID” option in
the BIOS Setup Utility. To accomplish this, boot your system and press the “Del” key
when prompted to enter the BIOS Setup Utility. On the “Peripherals” screen select
the “OnChip IDE Device” item which will take you to the “OnChip IDE Device” screen.
On this screen, choose the “On-Chip Serial ATA” item and select the “Enhanced
Mode” option. From the same “OnChip IDE Device” screen choose the “SATA Mode”
item and select the “RAID” option. Exit the Setup utility. The BIOS menu paths below
are for your reference:
Peripherals>>OnChip IDE Device>>On-Chip Serial ATA>> set to “Enhanced
Mode”
Peripherals>>OnChip IDE Device>>SATA Mode>>set to “RAID”