Lenovo 4223 Computer Hardware User Manual


 
Chapter 7. Conguring RAID
This chapter provides instructions on how to install hard disk drives and congure Redundant Array of
Independent Disks (RAID) for your computer. Depending on your computer model, RAID can be enabled by
Intel Rapid Storage Technology enterprise (RSTe) or the LSI MegaRAID BIOS.
Note: The RAID conguration information described in this chapter is only applicable in the Windows
environment. For information about conguring RAID in the Linux environment, contact your Linux software
provider.
This chapter provides information about the following topics:
“Conguring RAID with Intel RSTe” on page 43
“Quick RAID setup using the LSI MegaRAID BIOS conguration utility on page 45
Conguring RAID with Intel RSTe
If your computer comes with Intel RSTe, you can follow the sections below to congure RAID with Intel RSTe.
This section provides information about the following topics:
“Installing SATA or SAS hard disk drives” on page 43
“Conguring SATA or SAS RAID functionality with the Intel RSTe conguration utility” on page 44
Installing SATA or SAS hard disk drives
Ensure that your computer has the minimum number of SATA or SAS hard disk drives installed for the
following supported levels of RAID:
RAID Level 0 - Striped disk array
A RAID Level 0 hard disk drive group consisting of at least two hard disk drives
Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB
Better performance without fault tolerance
RAID Level 1 - Mirrored disk array
A RAID Level 1 hard disk drive group consisting of two hard disk drives
Improved reading performance and 100% redundancy
RAID Level 10 - Striped and mirrored disk array (a combination of RAID Level 0 and RAID Level 1)
A RAID Level 10 hard disk drive group consisting of four hard disk drives
Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, or 64 KB
RAID Level 5 - Block-level striped disk array with distributed parity
A RAID Level 5 hard disk drive group consisting of at least three hard disk drives
Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, or 64 KB
Better performance and fault tolerance
Ensure that one of the following hard disk drive enablement modules is installed in your computer:
If zero to four SATA hard disk drives or solid state drives are installed, no hard disk drive enablement
module is needed.
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