Table 28. Items in the Adapter Properties window for SAS1068E (continued)

Item

Description

 

 

Boot Support

Defining the software control mode of the adapter.

 

Enabled BIOS & OS: When this option is enabled, it

 

means that the adapter is controlled by both the BIOS

 

and the driver on the operating system.

 

Enabled BIOS Only: When this option is enabled, it

 

means that the adapter is controlled by only the BIOS,

 

instead of the driver on the operating system. This

 

option might not be supported by all the operating

 

systems, such as Windows operating systems.

 

Enabled OS Only: When this option is enabled, it

 

means that the adapter is controlled by only the

 

operating system.

 

Disabled: When this option is enabled, the adapter

 

is disabled.

 

 

RAID Properties

Set the Host RAID. See “SAS RAID settings” on page 90.

 

 

SAS Topology

Set the SAS hard disk drives. See “Accessing the SAS

 

Topology window” on page 91.

 

 

Advanced Adapter Properties

Set the advanced properties of the adapter

 

 

Note: To make any of the settings take effect, you need to restart the server.

SAS RAID settings

In the Adapter Properties window, select RAID Properties and press Enter. The main window for SAS RAID setup is displayed.

The following list describes the items in the main window for SAS RAID setup:

•Create IM Volume: Creating RAID 1 of two hard disk drives.

RAID 1 uses mirroring so that data written to one drive is simultaneously written to another drive. This is good for small databases or other applications that require small capacity but complete data redundancy if one drive fails. The data can be read from the two hard disk drives at the same time to improve the speed of reading the hard disk drives. RAID 1 only supports even numbers of hard disk drives.

•Create IME Volume: Creating RAID 1E of at least three hard disk drives.

RAID 1E stores data on all hard disk drives through striped mirroring. RAID 1E supports odd numbers of hard disk drives to form an array, while at least three hard disk drives are required.

•Create IS Volume: Creating RAID 0 of two to eight hard disk drives.

RAID 0 uses striping to provide high data throughput, especially for large files in an environment that does not require fault tolerance. RAID 0 breaks up data into smaller segments. It can improve read and write speed. However, since there is no data redundancy feature, all data will be lost if any drive fails.

Creating or deleting the RAID 1 array

This section uses RAID 1 as an example to guide you to create or delete SAS RAID using the LSI Configuration Utility program.

Creating the RAID 1 array

This section provides instructions on how to create RAID 1 using the LSI Configuration Utility program.

To create RAID 1, do the following:

90ThinkServer User Guide

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Lenovo 1045, 1046, 1047, 1048 manual SAS RAID settings, Creating or deleting the RAID 1 array, Creating the RAID 1 array
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