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IBM 887022X Maintenance Manual - Page 118

Removing, replacing, DIMMs

UPC - 000435151957

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e. Select Memory Mirroring Settings and enable memory mirroring. Note: When memory mirroring is enabled, reported memory is reduced to half of installed memory. f. Save and exit the Configuration/Setup Utility program. How does memory mirroring work? When memory mirroring is enabled, the data that is written to memory is stored in two locations. One copy is kept in the memory port one DIMMs, while a second copy is kept in the memory port two DIMMs. During the execution of the read command, the data is read from the DIMM with the least amount of reported memory errors through Memory scrubbing, which is enabled with memory mirroring. If memory scrubbing determines a DIMM is damaged beyond use, read and write operations are redirected to the remaining good DIMMs. Memory scrubbing then reports the damaged DIMM and the Light Path Diagnostics feature displays the error. After the damaged DIMM is replaced, memory mirroring then copies the mirrored data back into the new DIMM. v Memory scrubbing is an automatic daily test of all the system memory that detects and reports memory errors that might be developing before they cause a server outage. Note: Memory scrubbing and Memory ProteXion technology work in conjunction with each other and do not require memory mirroring to be enabled to work. When an error is detected, memory scrubbing determines if the error is recoverable or not. If it is recoverable, Memory ProteXion is enabled and the data that was stored in the damaged locations is rewritten to a new location. The error is then reported so that preventative maintenance can be performed. As long as there are enough good locations to allow the proper operation of the server, no further action is taken other than recording the error in the error logs. If the error is not recoverable, memory scrubbing sends an error message to the Light Path Diagnostics feature, which then turns on the proper LEDs to guide you to the damaged DIMM. If memory mirroring is enabled, then the mirrored copy of the data in the mirrored DIMM is used to refresh the new DIMM once it is installed. v Memory ProteXion reassigns memory bits to new locations within memory when recoverable errors have been detected. When a recoverable error is found by memory scrubbing, Memory ProteXion writes the data that was to be stored in the damaged memory locations to spare memory locations within the same DIMM. Removing and replacing DIMMs Complete the following steps to remove and replace a DIMM in the SMP Expansion Module with the server turned off: Attention: When working with DIMMs or other options, you might need to remove one or both of the SMP Expansion Modules. See "Hot-replace DIMMs" on page 110 for information on how to hot-replace DIMMs with the server turned on. 1. Review the information in "Installation guidelines" on page 79, and "Safety information" on page 257. 2. Turn off the server and peripheral devices, disconnect the power cords, and all external cables from the SMP Expansion Module. 108 xSeries 445 Type 8870: Hardware Maintenance Manual and Troubleshooting Guide

Section	Page
About this manual	5
Important safety information	5
Online support	5
Contents	7
Chapter 1. General information	11
Related publications	12
Notices and statements used in this book	12
Features and specifications	13
Server controls and indicators	14
Front view	14
Rear view	16
Remote Supervisor Adapter II-EXA models	16
Remote Supervisor Adapter models	16
Server power features	19
Turning on the server	19
Turning off the server	20
IBM Director	21
The UpdateXpress program	22
Chapter 2. Configuration	23
Using the Configuration/Setup Utility program	24
Starting the Configuration/Setup Utility program	24
Configuration/Setup Utility menu choices	24
Additional Configuration/Setup Utility menu choices	28
Remote console redirection	28
Passwords	29
Power-on password	29
Administrator password	30
Using the ServerGuide Setup and Installation CD	30
ServerGuide features	31
Setup and configuration overview	31
System Partition	32
Typical operating-system installation	32
Setting up or updating multiple servers	33
Installing your operating system without ServerGuide	34
Configuring the Gigabit Ethernet controller	34
Updating the integrated system management firmware	34
Using the LSI Logic Configuration Utility program	35
Using ServeRAID Manager	35
Configuring the controller	36
Using express configuration	36
Using custom configuration	37
Viewing the configuration	39
Getting assistance	40
Remote Supervisor Adapters	42
Identifying the Remote Supervisor Adapter	42
Setting up the Remote Supervisor Adapter II-EXA	43
Remote Supervisor Adapter II-EXA features	43
Setup requirements	44
Cabling and configuring the Remote Supervisor Adapter II-EXA	45
Configuring and connecting to the ASM interconnect network	50
Setting up the Remote Supervisor Adapter	54
Remote Supervisor Adapter features	54
Setup requirements	55
Cabling and configuring the Remote Supervisor Adapter	56
Using the ASM interconnect network	66
Using the PXE boot agent utility program	70
Starting the PXE boot agent utility program	70
PXE boot agent utility menu choices	70
Chapter 3. Diagnostics	71
General checkout	71
Diagnostic tools overview	73
POST	73
POST in a partitioned environment	73
Error logs	75
Viewing error logs from the Configuration/Setup Utility program	75
Viewing error logs from the diagnostic programs	75
Light path diagnostics	75
Diagnostic programs and error messages	78
Text messages	79
Starting the diagnostic programs	80
Viewing the test log	81
Viewing the System Error log	81
Verifying scalability and RXE cabling	82
Scalability cabling	83
RXE cabling	83
Testing the scalability and RXE cabling	84
Recovering BIOS code	85
Ethernet controller troubleshooting	86
Chapter 4. Installing options	89
Installation guidelines	89
Working inside the server with power on	89
Handling static-sensitive devices	90
System reliability considerations	90
Major components of the xSeries 445	91
Opening the cover	92
Removing and replacing the bezel	93
Removing and replacing a hot-swap power supply	94
PCI and PCI-X adapters	96
PCI and PCI-X adapter considerations	96
Cabling a ServeRAID adapter	99
Installing the serial port	101
Installing or replacing a drive	104
Hot-swap hard disk drive	104
Diskette drive	105
DVD-ROM drive	106
SMP Expansion Module	107
Removing and Installing the SMP Expansion Module and cover	108
Removing the SMP Expansion Module and cover	108
Installing the SMP Expansion Module and cover	111
Memory modules	115
Active Memory	117
Removing and replacing DIMMs	118
Hot-replace DIMMs	120
Hot-add memory	122
Installing and replacing a microprocessor	126
Replacing and troubleshooting fans	132
Replacing fans 1 and 2	132
Replacing fans 3 and 4	133
Closing the cover	135
Connecting the cables	136
SMP Expansion Port cabling	137
One server with two SMP Expansion Modules	138
Two servers with four SMP Expansion Modules (16-way)	139
RXE Expansion and Management Port cabling	143
One server with one SMP Expansion Module	143
One server with two SMP Expansion Modules	145
Two stand-alone servers	146
16-way configuration	148
Scalable partitions	150
Creating a scalable partition	151
Deleting a scalable partition	153
Power cabling	153
SCSI cabling	153
USB cabling	154
Video cabling	154
Mouse cabling	154
Keyboard cabling	154
Gigabit Ethernet cabling	154
Remote Supervisor Adapter cabling	154
Chapter 5. I/O connectors and indicators	155
Universal Serial Bus ports	156
USB cables and hubs	156
USB-port connectors	156
Keyboard connector	156
Video connector	156
Auxiliary-device (pointing device) connector	157
RXE Expansion Port	157
SMP Expansion Port	157
Serial Port	157
Remote Supervisor Adapter communication ports	158
Remote Supervisor Adapter II-EXA connectors and LEDs	158
Remote Supervisor Adapter connectors and LEDs	159
Gigabit Ethernet port	160
Configuring the Gigabit Ethernet controller	160
Ethernet port connector	161
Chapter 6. FRU information (service only)	163
Replacing the battery	164
Thermal grease	167
PCI brick	168
Center plane	169
Center plane connectors, jumpers and LEDs	169
Center plane connectors and jumpers	169
Center plane LEDs	170
Force power-on	170
Center plane replacement	170
PCI-X board	172
PCI-X board internal connectors and LEDs	172
Service jumpers	173
PCI-X board replacement	174
I/O board	176
I/O board internal connectors	176
I/O board replacement	176
Riser card and Remote Supervisor Adapter (system management board)	179
Remote Supervisor Adapter component locations	179
Remote Supervisor Adapter II-EXA	179
Remote Supervisor Adapter component locations	179
Riser card and Remote Supervisor Adapter replacement	180
Top cover assembly	182
Top power board	184
DASD backplane	185
Media bay card	186
SMP board	187
SMP Expansion Module switches and connectors	188
SMP Expansion Module LEDs	189
AC box assembly mechanism	190
Media extract mechanism	192
Power/reset card assembly	193
Active PCI assembly	194
Light path card	195
Chapter 7. Symptom-to-FRU index	197
Beep symptoms	198
No beep symptoms	200
Light path LED errors	200
Level 1 light path	200
Level 2 light path	201
Level 3 light path	203
System Error log entries	204
POST/BIOS messages	204
SMI Handler messages	205
Service processor messages	208
Diagnostic error codes	221
POST error codes	234
12v bus faults	239
Error symptoms	240
Power LED errors	250
SCSI error messages	252
ServeRAID (ISPR) error procedures	252
ServeRAID error codes	254
Undetermined problems	256
Problem determination tips	257
Chapter 8. Parts listing, Type 8870	259
System	259
Figure A	262
Keyboard CRUs	264
Power cord FRUs	265
Chapter 9. Related service information	267
Safety information	267
General safety	267
Electrical safety	268
Safety inspection guide	269
Handling electrostatic discharge-sensitive devices	270
Grounding requirements	270
Safety notices (multilingual translations)	270
Appendix A. Getting help and technical assistance	309
Before you call	309
Using the documentation	309
Getting help and information from the World Wide Web	310
Software service and support	310
Hardware service and support	310
Appendix B. Notices	311
Edition notice	311
Trademarks	312
Important notes	312
Product recycling and disposal	313
Battery return program	313
Electronic emission notices	314
Federal Communications Commission (FCC) statement	314
Industry Canada Class A emission compliance statement	314
Australia and New Zealand Class A statement	314
United Kingdom telecommunications safety requirement	314
European Union EMC Directive conformance statement	314
Taiwanese Class A warning statement	315
Chinese Class A warning statement	315
Japanese Voluntary Control Council for Interference (VCCI) statement	315

Match case Limit results 1 per page

Select

Memory

Mirroring

Settings

and

enable

memory

mirroring.

Note:

When

memory

mirroring

enabled,

reported

memory

reduced

half

installed

memory.

Save

and

exit

the

Configuration/Setup

Utility

program.

How

does

memory

mirroring

work?

When

memory

mirroring

enabled,

the

data

that

written

memory

stored

two

locations.

One

copy

kept

the

memory

port

one

DIMMs,

while

second

copy

kept

the

memory

port

two

DIMMs.

During

the

execution

the

read

command,

the

data

read

from

the

DIMM

with

the

least

amount

reported

memory

errors

through

Memory

scrubbing,

which

enabled

with

memory

mirroring.

memory

scrubbing

determines

DIMM

damaged

beyond

use,

read

and

write

operations

are

redirected

the

remaining

good

DIMMs.

Memory

scrubbing

then

reports

the

damaged

DIMM

and

the

Light

Path

Diagnostics

feature

displays

the

error.

After

the

damaged

DIMM

replaced,

memory

mirroring

then

copies

the

mirrored

data

back

into

the

new

DIMM.

Memory

scrubbing

automatic

daily

test

all

the

system

memory

that

detects

and

reports

memory

errors

that

might

developing

before

they

cause

server

outage.

Note:

Memory

scrubbing

and

Memory

ProteXion

technology

work

conjunction

with

each

other

and

not

require

memory

mirroring

enabled

work.

When

error

detected,

memory

scrubbing

determines

the

error

recoverable

not.

recoverable,

Memory

ProteXion

enabled

and

the

data

that

was

stored

the

damaged

locations

rewritten

new

location.

The

error

then

reported

that

preventative

maintenance

can

performed.

long

there

are

enough

good

locations

allow

the

proper

operation

the

server,

further

action

taken

other

than

recording

the

error

the

error

logs.

the

error

not

recoverable,

memory

scrubbing

sends

error

message

the

Light

Path

Diagnostics

feature,

which

then

turns

the

proper

LEDs

guide

you

the

damaged

DIMM.

memory

mirroring

enabled,

then

the

mirrored

copy

the

data

the

mirrored

DIMM

used

refresh

the

new

DIMM

once

installed.

Memory

ProteXion

reassigns

memory

bits

new

locations

within

memory

when

recoverable

errors

have

been

detected.

When

recoverable

error

found

memory

scrubbing,

Memory

ProteXion

writes

the

data

that

was

stored

the

damaged

memory

locations

spare

memory

locations

within

the

same

DIMM.

Removing

and

replacing

DIMMs

Complete

the

following

steps

remove

and

replace

DIMM

the

SMP

Expansion

Module

with

the

server

turned

off:

Attention:

When

working

with

DIMMs

other

options,

you

might

need

remove

one

both

the

SMP

Expansion

Modules.

See

“Hot-replace

DIMMs”

page

110

for

information

how

hot-replace

DIMMs

with

the

server

turned

on.

Review

the

information

“Installation

guidelines”

page

79,

and

“Safety

information”

page

257.

Turn

off

the

server

and

peripheral

devices,

disconnect

the

power

cords,

and

all

external

cables

from

the

SMP

Expansion

Module.

108

xSeries

445

Type

8870:

Hardware

Maintenance

Manual

and

Troubleshooting

Guide