HP Xw8200 LSI SCSI: Integrated RAID User's Guide (PCI plug-in and system board - Page 23

Setting Up Integrated, Mirroring

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Chapter 3 Setting Up Integrated Mirroring This chapter describes how to set up Integrated Mirroring (IM) using the BIOS-based configuration utility (CU). The chapter includes these topics: • Section 3.1, "IM Configuration Overview" • Section 3.2, "Configuring IM with the BIOS-Based CU" • Section 3.3, "Troubleshooting," page 3-14 3.1 IM Configuration Overview The following constraints were made in order to simplify the IM configuration. • The BIOS-based CU allows you to create one mirrored volume per Fusion-MPT controller. • The mirrored volume can have two to six disks, or two to five disks if an optional hot spare disk is used. • Disks in a mirrored volume must be connected to the same channel of the same Fusion-MPT controller, and the controller must be in the BIOS boot order. • Disks in an IM volume must be non-removable, single-LUN disks that support 512-byte sectors, wide synchronous transfers, Qtag'd I/Os, and a unit serial number. The disks must support SMART, and they must be minimally compliant with the SCSI-2 standard. • Disks of different size are allowed in mirrored volumes, but the smallest disk determines the "logical" size of each disk in the volume. The excess space of larger member disks is not used. Integrated RAID User's Guide 3-1 Version 1.0 Copyright © 2003 by LSI Logic Corporation. All rights reserved.

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Integrated RAID User’s Guide
3-1
Version 1.0
Copyright © 2003 by LSI Logic Corporation. All rights reserved.
Chapter 3
Setting Up Integrated
Mirroring
This chapter describes how to set up Integrated Mirroring (IM) using the
BIOS-based configuration utility (CU). The chapter includes these topics:
•
Section 3.1, “IM Configuration Overview”
•
Section 3.2, “Configuring IM with the BIOS-Based CU”
•
Section 3.3, “Troubleshooting,” page 3-14
3.1
IM Configuration Overview
The following constraints were made in order to simplify the IM
configuration.
•
The BIOS-based CU allows you to create one mirrored volume per
Fusion-MPT controller.
•
The mirrored volume can have two to six disks, or two to five disks
if an optional hot spare disk is used.
•
Disks in a mirrored volume must be connected to the same channel
of the same Fusion-MPT controller, and the controller must be in the
BIOS boot order.
•
Disks in an IM volume must be non-removable, single-LUN disks that
support 512-byte sectors, wide synchronous transfers, Qtag’d I/Os,
and a unit serial number. The disks must support SMART, and they
must be minimally compliant with the SCSI-2 standard.
•
Disks of different size are allowed in mirrored volumes, but the
smallest disk determines the “logical” size of each disk in the volume.
The excess space of larger member disks is not used.