Configuring Raid With Intel Rste - Lenovo ThinkStation P520 User Manual

as one single storage unit. Creating and using RAID arrays provides high performance, such as the expedited
I/O performance, because several drives can be accessed simultaneously.
RAID drive groups configured according to certain RAID levels also improve data storage reliability and fault
tolerance compared with single-drive storage systems. Data loss resulting from a drive failure can be
prevented by reconstructing missing data from the remaining drives.
Note: For RAID 0, the missing data resulting from a drive failure cannot be reconstructed.

Configuring RAID with Intel RSTe

If your computer comes with the Intel RSTe configuration utility, you can follow the sections below to
configure RAID with Intel RSTe.
Storage drive requirements for RAID levels
Your computer supports the following RAID levels:
• RAID 0: striped disk array
– Consists of at least two SATA storage drives
– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB
– Better performance without fault tolerance
• RAID 1: mirrored disk array
– Consists of two SATA storage drives
– Improved reading performance and 100% redundancy
• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)
– Consists of four SATA storage drives
– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, or 64 KB
• RAID 5: block-level striped disk array with distributed parity
– Consists of at least three SATA storage drives
– Supported strip size: 16 KB, 32 KB, 64 KB, or 128 KB
– Better performance and fault tolerance
Creating a RAID volume
Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being
created.
To create a RAID volume, do the following:
1. Enable RAID by doing the following:
a. Start the Setup Utility program. See "Starting the Setup Utility program" on page 37.
b. Select Devices ➙ PCH SATA Configuration and press Enter.
c. Select Configure SATA as and press Enter. Then, select RAID and press Enter.
d. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the
keyboard settings), select Yes in the window displayed, and press Enter.
2. Start the Setup Utility program again. See "Starting the Setup Utility program" on page 37.
3. Select Advanced ➙ Intel RSTe SATA Controller and press Enter.
4. Select Create RAID Volume and press Enter. The Create RAID Volume window is displayed.
5. Select and configure the options one by one.
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P520 User Guide