Lenovo ThinkStation P900 Hardware Maintenance Manual page 81

• 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.
• If five SATA hard disk drives or solid state drives are installed, the SATA hard disk drive enablement
module (one to five hard disk drives) is required.
• If any SAS hard disk drives are installed, the SAS hard disk drive enablement module (one to five hard
disk drives) is required.
Configuring SATA or SAS RAID functionality with the Intel RSTe configuration utility
This section describes the information about configuring SATA or SAS RAID functionality with the Intel
RSTe configuration utility.
Note: The Intel RSTe configuration utility assumes that your computer is installed with more than one hard
disk drive. Therefore, if only one hard disk drive is installed in your computer, the following information
does not apply.
This section provides information about the following topics:
• "Entering the Intel RSTe configuration utility" on page 73
• "Creating RAID volumes using the Intel RSTe configuration utility" on page 74
• "Deleting RAID volumes using the Intel RSTe configuration utility" on page 74
• "Resetting hard disk drives to non-RAID" on page 74
Entering the Intel RSTe configuration utility
This section provides instructions on how to enter the Intel RSTe configuration utility.
During the computer startup, follow the instructions on the screen. Press Ctrl+I to enter the Intel RSTe
configuration utility.
The following four options are displayed after you enter the Intel RSTe configuration utility:
1. Create RAID Volume
2. Delete RAID Volume
.
Chapter 6 Advanced configuration
73