HP ML570 - ProLiant - G2 User manual

HP ProLiant DL580 Generation 2 and

HP ProLiant ML570 Generation 2

Server Hot-Add Memory

July 2003 (Second Edition)

Part Number 325398-002

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/8/03 9:53 AM

Microsoft® and Windows® are US registered trademarks of Microsoft Corporation.

Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions

contained herein. The information in this document is provided “as is” without warranty of

any kind and is subject to change without notice. The warranties for HP products are set forth

in the express limited warranty statements accompanying such products. Nothing herein

should be construed as constituting an additional warranty.

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add

Memory

July 2003 (Second Edition)

Part Number 325398-002

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/8/03 9:53 AM

Contents

Abstract.......................................................................................................... 5

Audience Assumptions ................................................................................ 5

Purpose of this Document............................................................................ 5

Hot-Add Memory Installation on HP ProLiant DL580 Generation 2 and

ML570 Generation 2 Servers ........................................................................ 6

Overview ............................................................................................................................ 6

Description ......................................................................................................................... 7

Hot-Add Functionality..................................................................................................7

Hot-Add versus Hot-Mirror ..........................................................................................7

Requirements for a Hot-Add Functionality Upgrade ......................................................... 8

Supported Operating Systems.......................................................................................8

Memory Mode Requirements for Hot-Add ..................................................................8

DIMM Configuration Requirements for Hot-Add........................................................9

Configuring the Servers for Hot-Add Functionality ................................. 10

Hot-Plug Memory Configuration Utility.......................................................................... 10

RBSU Options.................................................................................................................. 11

Typical Hot-Add Board Insertion with an Empty Memory Slot ...................................... 13

Changing Dual-Board Hot-Plug Memory Mirroring to Hot-Add Without Removing the

Memory Board ................................................................................................................. 14

Additional Considerations When Upgrading to Hot-Add Functionality . 15

Test for Faulty DIMMs Before a Hot-Add Board Insertion............................................. 15

Hot-Add Functionality and Applications ......................................................................... 15

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory 3

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

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Abstract

This guide provides reference information for Hot-Add Memory functionality for the

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 servers.

Audience Assumptions

This guide is for the person who installs, administers, and troubleshoots servers. HP

assumes you are qualified in the servicing of server equipment and trained in

recognizing hazards in products with hazardous energy levels.

Purpose of this Document

This document is intended to provide you with information on how to use the

Hot-Add functionality, and how to quickly and easily increase the amount of memory

in the server without powering down or rebooting the system.

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory 5

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/8/03 9:53 AM

6HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/28/03 9:18 AM

Hot-Add Memory Installation on HP ProLiant DL580

Generation 2 and ML570 Generation 2 Servers

Overview

Hot-Add functionality allows you to upgrade the amount of memory in the server

without powering down or rebooting the server. This functionality eliminates server

downtime and service interruption when performing a memory upgrade.

Hot-Add functionality is a feature developed for the HP ProLiant DL580

Generation 2 and HP ProLiant ML570 Generation 2 servers. These servers can be

upgraded through a System ROM, dated February 4, 2003 and later, and Advanced

System Management Controller Driver, version 5.28 and later, available at:

Table 1: Hot-Add Upgrade Driver Locations

Server Driver Location

ProLiant ML570 G2

and DL580 G2 servers

(Hot-Plug Memory

Configuration Utility)

h18023.www1.hp.com/support/files/server/us/download/17143.html

ProLiant ML570 G2

server (Advanced

System Management

Controller Driver)*

www.compaq.com/support/files/server/us/locate/7266.html

ProLiant DL580 G2

server (iLO Advanced

System Management

Controller Driver)*

www.compaq.com/support/files/server/us/locate/7263.html

* Drivers must be version 5.28 or later to support Hot-Add memory. Install the drivers

which support the Hot-Add functionality after installing Microsoft® Windows® Server 2003.

If a driver earlier than version 5.28 is already installed, upgrade the driver and reboot the system.

This feature joins Dual-Board Hot-Plug Memory Mirroring, Single-Board Mirroring,

and Online Spare Memory as advanced memory features on these platforms. For

more information on these features, refer to the white papers located at

www.hp.com/support/home.

Description

Hot-Add Functionality

Hot-Add functionality is made possible by a combination of a Hot-Add aware OS

(currently Windows Server 2003 Enterprise Edition), system BIOS, and the Hot-Add

memory driver (the Advanced System Management Controller Driver provides this

function on these platforms). In addition, the hardware platform needs to support

hot-pluggable memory modules or cards.

Hot-Add functionality allows a system in Advanced ECC mode, with a single

memory board (meaning one memory board slot is empty), to dynamically have its

memory resources increased by insertion of another memory board (with identical

DIMM configuration as the existing board) while operating.

Hot-Add versus Hot-Mirror

Upon a board insertion, an option setting tracks whether the System ROM should

treat the board insertion as a Hot-Mirror (providing mirroring functionality) or

Hot-Add (providing additional memory available to the OS and applications).

While the Advanced Memory Protection Mode does have dependencies on the

Hot-Add versus Hot-Mirror configuration mode, no strict dependencies exist between

the two, and they operate independently.

Select the board insertion mode through ROM-Based Setup Utility (RBSU) or the

Hot-Plug Memory Configuration Utility. The default board insertion mode is Hot-

Mirror.

Hot-Add functionality takes advantage of the hardware responsible for allowing a

board to be inserted during runtime that is used for Dual-Board Memory Mirroring

mode and Hot-Mirroring.

With a Hot-Add board insertion, the OS is provided with additional memory

resources while operating without the need to reboot the server. Unlike Hot-Add

board insertion, Hot-Mirror dynamically places the system in a mirroring state but the

OS does not have access to additional memory. The primary function of the new

memory is to provide mirroring support and protection against multi-bit memory

errors.

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory 7

HP CONFIDENTIAL

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When the board insertion is complete, the OS registers the additional memory and it

is then available for use by the OS and applications. The server can support up to 32

GB of memory, and a Hot-Add board insertion can upgrade to the total memory

capacity, assuming all DIMM configuration requirements are met.

Requirements for a Hot-Add Functionality Upgrade

The following requirements and conditions must be met when configuring the servers

for Hot-Add memory functionality.

Supported Operating Systems

At present, Hot-Add functionality is supported on Windows Server 2003 Enterprise

Edition.

Memory Mode Requirements for Hot-Add

Several rules and limitations apply regarding when Hot-Add functionality is

supported.

Hot-Add is supported only in the following modes:

• Advanced ECC with a single memory board (one memory board slot available)

• Dual-Board Memory Mirroring Mode (refer to “Changing Dual-Board Hot-Plug

Memory Mirroring to Hot-Add Without Removing the Memory Board”)

8HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory

HP CONFIDENTIAL

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Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/8/03 9:53 AM

Hot-Add is NOT supported in the following modes:

• Advanced ECC when both memory boards are installed. In this case, no empty

memory board slots are available for additional memory to be inserted.

• Online Spare Mode

• Single-Board Mirroring Mode

IMPORTANT: If you attempt a Hot-Add board insertion while in Online Spare mode or Single-

Board Mirroring Mode, all LEDs on the memory board flash amber and the system internal

speaker emits a warning tone as soon as the board is latched, before closing the locking

switch. If this occurs, remove the board. It will not affect server operation.

DIMM Configuration Requirements for Hot-Add

The DIMM configuration rules for Hot-Add are very stringent. The DIMM

configuration on the new memory board must exactly match that of the existing

board to double the amount of available memory.

If any DIMM configuration errors are found on the newly inserted board, the LEDs

for the DIMMs that are incorrect flash amber several seconds after the board is

inserted. An invalid DIMM error could occur because the DIMM is not the same type

as the corresponding DIMM on the existing board or because a DIMM is installed on

the new board which was unpopulated on the existing board.

If a DIMM configuration error is detected, unlock the board and remove it to make

any DIMM configuration corrections. The board can then be re-inserted and the Hot-

Add procedure completed normally.

If a board insertion is aborted because of a DIMM configuration error, the Advanced

System Management Controller Driver is notified. It will log in the Integrated

Management Log (IML) and the NT Eventlog that a Board Insertion was attempted

and suffered from a DIMM configuration error.

If a DIMM configuration error is detected, the System ROM aborts the board

insertion. System operation is not negatively effected.

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory 9

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/8/03 9:53 AM

10 HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory

HP CONFIDENTIAL

Writer: Jennifer Hayward File Name: 325398-2.doc

Codename: Seabiscuit Part Number: 325398-002 Last Saved On: 5/28/03 9:18 AM

Configuring the Servers for Hot-Add Functionality

Hot-Add memory functionality can be configured using either the Hot-Plug Memory

Configuration Utility or RBSU.

Hot-Plug Memory Configuration Utility

The Hot-Plug Memory Configuration Utility is a Windows Server 2003 Enterprise

Edition application that allows you to select Hot-Add or Hot-Mirror. This allows the

server to be configured for the desired board insertion mode at runtime without

rebooting the server. This is useful if the proper mode was not selected in RBSU.

Also, this application displays the currently selected mode. The Hot-Plug Memory

Configuration Utility for Windows Server 2003 is located at

h18023.www1.hp.com/support/files/server/us/download/17143.html

Figure 1: Hot-Plug Memory Configuration Utility

RBSU Options

The board insertion mode is also configurable in RBSU. The menu for selecting the

board insertion mode in RBSU (refer to Figures 2 through 5) can be accessed by

selecting the System Options menu, then the Hot-Plug Board Insertion Mode

menu.

The options under Hot-Plug Board Insertion Mode are Hot-Mirror and Hot-Add.

The mode currently selected is highlighted.

NOTE: The default board insertion mode is Hot-Mirror.

Figure 2: RBSU Hot-Plug Board Insertion Mode settings

The following sequence of screens provide details for selecting Hot-Add mode.

NOTE: The screens in this document show the ProLiant ML570 G2 server for consistency, but

the same screens apply for the ProLiant DL580 G2 server.

HP ProLiant DL580 Generation 2 and HP ProLiant ML570 Generation 2 Server Hot-Add Memory 11

HP CONFIDENTIAL

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