LSI Corporation
|
December 2010
Page 9
MegaRAID SAS 9265-8i RAID Controller Quick Installation Guide
Supported RAID Levels
8.
Run the WebBIOS Configuration Utility
Run the WebBIOS Configuration Utility to configure the groups and the virtual
drives. When the message
Press <Ctrl><H> for WebBIOS
appears on the
screen, immediately press CTRL+H to run the utility.
NOTE:
Refer to the
MegaRAID SAS Software User Guide
for detailed steps on
configuring groups and virtual drives.
9.
Install the Operating System Driver
The controller can operate under various operating systems, but you must install
the software drivers first.
The
MegaRAID Universal Software Suite
CD includes the software drivers for the
supported operating systems, along with documentation. You can view the
supported operating systems and download the latest drivers for RAID controllers
from the LSI web site at:
http://www.lsi.com/cm/DownloadSearch.do
. Access the
download center, and follow the steps to download the driver.
Refer to the
MegaRAID SAS Device Driver Installation User Guide
on the
MegaRAID Universal Software Suite
CD for more information about installing the
driver. Be sure to use the latest service packs that are provided by the operating
system manufacturer and to review the
readme
file that accompanies the driver.
Supported RAID Levels
This RAID controller supports drive groups using the following RAID levels:
RAID 0 (data striping):
Data is striped across all drives in the group, enabling very
fast data throughput. There is no data redundancy. All data is lost if any drive fails.
RAID 1 (drive mirroring):
Data is written simultaneously to both drives in the drive
group, providing complete data redundancy if one drive fails. RAID 1 supports an
even number of drives from 2 to 32 in a single span.
RAID 5 (drive striping with distributed parity):
Data is striped across all drives in
the group. Part of the capacity of each drive stores parity information that
reconstructs data if a drive fails. RAID 5 provides good data throughput for
applications with high read request rates.
RAID 6
(drive striping with distributed parity across two drives):
Data is striped
across all drives in the group and two parity drives are used to provide protection
against the failure of up to two drives. In each row of data blocks, two sets of parity
data are stored.
RAID 00 (data striping across RAID 0 drive groups):
RAID 00 is a spanned drive
group that creates a striped set from a series of RAID 0 drive groups.
RAID 10 (RAID 1 and RAID 0 in spanned groups):
RAID 10 uses mirrored pairs of
drives to provide complete data redundancy. RAID 10 provides high data
throughput rates.
RAID 50 (RAID 5 and RAID 0 in spanned groups):
RAID 50 uses both parity and
drive striping across multiple drives to provide complete data redundancy. RAID 50
provides high data throughput rates.
