Chapter 6. Installing hard disk drives and configuring RAID

This chapter contains information about installing hard disk drives and configuring Redundant Array of Independent Disks (RAID) for this product.

Notes:

The information about configuring RAID in this chapter is applicable only for a Windows environment. For information about configuring RAID in a Linux environment, contact your Linux software provider.

You can install a combination of SATA and SAS hard disk drives within the same computer. However, SATA and SAS hard disk drives cannot be installed within the same RAID array. All drives should be connected to the SAS controller card.

Installing SATA hard disk drives and configuring RAID

This section contains information about the required number of SATA hard disk drives for the supported level of RAID and SATA RAID configuration.

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, refer to the installation procedure in “Replacing a hard disk drive” in the ThinkStation Hardware Installation and Replacement Guide.

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.Press F1 to enter the system BIOS setup. See “Starting the Setup Utility program” on page 17.

2.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.

© Copyright Lenovo 2009, 2012

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Lenovo 4157, 4105 Installing hard disk drives and configuring RAID, Installing Sata hard disk drives and configuring RAID