Supported raid levels, Technical support – Avago Technologies MegaRAID SAS 8300XLP User Manual

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PN 80-00124-01 Rev. A

Version 1.0, April 2006

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before the devices, the devices might not be
recognized.

The firmware takes several seconds to initialize.
During this time the adapter scans the ports.

Step 8

Run the WebBIOS Configuration Utility

Run the WebBIOS Configuration Utility to
configure the physical arrays and the logical
drives. When the message Press <Ctrl><H> for
WebBIOS

appears on the screen, press CTRL+H

immediately to run the utility.

Note:

Refer to the MegaRAID SAS Software User’s
Guide
on the MegaRAID Universal Software
Suite
CD for detailed steps on configuring
physical arrays and logical drives.

Step 9

Install the Operating System Driver

The SAS 8300XLP can operate under various
operating systems. To operate under these
operating systems, you must install the software
drivers.

The MegaRAID Universal Software Suite CD
includes software drivers for the supported
operating systems, along with documentation.
You can view the supported operating systems
and download the latest drivers for RAID
adapters on the LSI Logic web site at:

http://www.lsilogic.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’s Guide
on the MegaRAID
Universal Software Suite
CD for details on
installing the driver. Be sure to use the latest
Service Packs provided by the operating system
manufacturer and to review the readme file that
accompanies the driver.

S U P P O R T E D R A I D L E V E L S

The SAS 8300XLP supports disk arrays using the following
RAID levels:

RAID 0 (Data striping): Data is striped across all disks

in the array, enabling very fast data throughput. There is
no data redundancy. All data is lost if any disk fails.

RAID 1 (Disk mirroring): Data is written simultaneously

to two disks, providing complete data redundancy if one
disk fails. The maximum array capacity is equal to the
available size of the smaller of the two hard drives.

RAID 5 (Disk striping with distributed parity): Data is

striped across all disks in the array. Part of the capacity
of each disk stores parity information that reconstructs
data if a disk fails. Provides good data throughput for
applications with high read request rates.

RAID 10 (RAID 1 and RAID 0 in spanned arrays): Uses

mirrored pairs of disks to provide complete data
redundancy. Provides high data throughput rates.

RAID 50 (RAID 5 and RAID 0 in spanned arrays): Uses

both parity and disk striping across multiple disks to
provide complete data redundancy. Provides high data
throughput rates.

T E C H N I C A L S U P P O R T

For assistance installing, configuring, or running the SAS
8300XLP, contact LSI Logic Technical Support:

E-mail:

[email protected]

[email protected] (Europe)

Phone Support:

1-800-633-4545 (North America)

+44 1344 413 441 (Europe)

Web Site:

http://www.lsilogic.com/support/

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