Chapter 7. Configuring Raid; Configuring Raid For Machine Types 4262, 4263, 4264, And 4265; Installing Sata Hard Disk Drives; Configuring The System Bios To Enable Sata Raid Functionality - Lenovo ThinkStation 4262 Maintenance Manual

Chapter 7. Configuring RAID

This chapter contains information about installing hard disk drives and configuring Redundant Array of
Independent Disks (RAID) for your computer.
Notes:
1. The Marvell BIOS setup information in this chapter only applies to some computer models.
2. The information about configuring RAID in this chapter only applies for a Windows environment. For
information about configuring RAID in a Linux environment, contact your Linux software provider.

Configuring RAID for machine types 4262, 4263, 4264, and 4265

This section contains information about the required number of SATA hard disk drives for the supported level
of RAID and SATA RAID configuration for machine types 4262, 4263, 4264, and 4265.

Installing SATA hard disk drives

Your computer must have the minimum number of SATA hard disk drives installed for the supported level of
RAID below:
• RAID Level 0 – Striped disk array
– Two hard disk drives minimum
– Better performance without fault tolerance
• RAID Level 1 – Mirrored disk array
– Two hard disk drives minimum
– Improved read performance and 100% redundancy
• RAID Level 5 – Block-level striped disk array with distributed parity
– Three hard disk drives minimum
– Data striped at the byte level
– Stripe error correction information
– Better performance and fault tolerance
To install a new SATA hard disk drive, see "Installing a new hard disk drive" on page 83.

Configuring the system BIOS to enable SATA RAID functionality

This section describes how to configure the system BIOS to enable SATA RAID functionality.
Note: Use the arrow keys on the keyboard to make selections.
1. Start the Setup Utility program. See "Starting the Setup Utility program" on page 37.
2. From the Setup Utility program main menu, select Devices ® IDE Drives Setup and press Enter.
3. Select SATA RAID Enable and press Enter.
4. Select Enabled and press Enter.
5. Press F10 to save the new settings and exit the Setup Utility program.
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