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LSI2108/2208SASMegaRAIDCongurationUtilityUser'sManual
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5. The Virtual Drive Denition screen displays, as shown below.
VirtualDriveDenition
In the Virtual Drive Denition screen, congure the following options as needed:
RAID Level: Select the desired RAID level. The available options are:
•RAID 0 (data striping)
•RAID 1 (data mirroring)
•RAID 5 (data striping with parity)
•RAID 6 (distributed parity and disk striping)
•RAID 10 (striped mirroring)
•RAID 50 (striped mirroring)
•RAID 60 (distributed parity with two independent parity blocks per stripe)
Stripe Size: Select the desired stripe size.
Access Policy: Select the desired data access policy.
Read Policy: Select either Always Read Ahead or No Read Ahead. Selecting Al-
ways Read Ahead will improve performance during sequential reads.
Write Policy: Select between the following options:
•Write-Through: Use this option to write data to both the controller cache and
the drive once the data is retrieved.
•Write-Back With BBU: Use this option to write data only to the controller
cache, provided that a battery backup is installed and functional.