Copyright Lenovo; Chapter 5. Installing And Configuring Raid; Supported Raid Configurations; Configuring The System Uefi Bios To Enable Embedded Sata Raid Functionality - Lenovo ThinkPad T520 Hardware Maintenance Manual

Chapter 5. Installing and configuring RAID

This chapter presents following information about attaching SATA devices and configuring RAID for the
RAID-supported models in this product.
Note: When the UEFI BIOS was formatted or the system board was replaced in the RAID-supported models,
RAID is enabled by default.
Important notices for setting RAID:
Before you install and configure RAID, make sure of the current RAID setting on the computer you are
servicing.
This product supports either RAID Level 0 (RAID 0) or RAID Level 1 (RAID 1). Confirm the RAID setting
information provided from the customer at first, then proceed with the installation.
Good or non failing drives have to be in HDD bay 0 if you have RAID 1.
• "Supported RAID configurations" on page 45
• "Configuring the system UEFI BIOS to enable embedded SATA RAID functionality" on page 45
• "Creating RAID volumes" on page 45
• "Deleting RAID volumes" on page 46

Supported RAID configurations

The following RAID configurations are supported on ThinkPad W520:
RAID Level 0 (RAID 0) – Striped disk array
Better performance and no fault tolerance.
RAID Level 1 (RAID 1) – Mirrored disk array
Improved read performance and 100% redundancy.
Configuring the system UEFI BIOS to enable embedded SATA RAID
functionality
To configure the UEFI BIOS for RAID, do as follows:
1. Press F1 to enter the ThinkPad Setup menu.
2. Select Config.
3. Select Serial ATA (SATA).
4. Select SATA Controller Mode Option
5. Select RAID
6. Press F10 to save the settings.
Note: SATA Controller Mode Option is recovered to RAID by default. When you use other mode before
load default setting in ThinkPad Setup menu such as F9 key, you have to restore the setting as you like.

Creating RAID volumes

This section describes how to use the Intel® Rapid Storage Technology option ROM Configuration Utility to
create RAID volumes.
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