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Redundancy - server power supply

UPC - 087944724261

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Note: There are no parallel or serial ports on the x440. For serial connections, use the USB to Serial Adapter, part number 10K3661, as described in 3.2.4, "Serial connections" on page 83. With the addition of an RXE-100 Remote Expansion Enclosure, you can connect an additional six or 12 PCI-X adapters to the x440. See 3.2.3, "Remote Expansion Enclosure" on page 78 for details. Note: Currently, only one RXE-100 can be connected to an x440 configuration. For configurations up to eight-way (that is, single chassis), connectivity is using one RXE Expansion Port and cable. The dual-chassis 16-way configuration uses two redundant RXE cables. This is described in detail in 3.2.3, "Remote Expansion Enclosure" on page 78. 1.9 Redundancy The x440 has the following redundancy features to maintain high availability: Four hot-swap multi-speed fans With four hot-swap redundant fans, the x440 has adequate cooling for each of its major component areas. There are two fans located at the front of the server that direct air through the SMP Expansion Modules. These fans are accessible from the top of the server without having to open the system panels. In the event of a fan failure, the other fan will speed up to continue to provide adequate cooling until the fan can be hot-swapped by the IT administrator. The other two fans are located just behind the power supplies and provide cooling for the I/O devices. Similar to the SMP Expansion Module fans, these fans will speed up in the event that one should fail to compensate for the reduction in air flow. In general, failed fans should be replaced within 24 hours following failure. Important: Due to airflow requirements, fans should not be removed for longer than two minutes. The fan compartments need to be fully populated even if the fan is defective. Therefore, remove a defective fan only when a new fan is available for immediate replacement. Two hot-swap power supplies with separate power cords. Note: For large configurations, redundancy is achieved only when connected to a 220 V power supply. See 3.8, "Power considerations" on page 103 for details. 24 IBM ^ xSeries 440 Planning and Installation Guide

Section	Page
Front cover	1
Contents	5
Notices	9
Trademarks	10
Preface	11
The team that wrote this redbook	11
Become a published author	14
Comments welcome	14
Chapter 1. Technical description	15
1.1 The x440 product line	16
1.2 System partitioning	20
1.3 IBM XA-32 chipset	21
1.4 Processors	26
1.4.1 Intel Xeon Processor MP	27
1.4.2 Intel Xeon Processor DP	30
1.5 SMP Expansion Module	31
1.6 IBM XceL4 Server Accelerator Cache	33
1.7 System memory	33
1.8 PCI subsystem	37
1.9 Redundancy	38
1.10 Light Path Diagnostics	39
1.11 Remote Supervisor Adapter	41
1.12 Operating system support	42
1.13 IBM Director	44
Chapter 2. Positioning	49
2.1 xSeries 440 application solutions	50
2.1.1 Server consolidation	50
2.1.2 Enterprise applications	52
2.1.3 Infrastructure applications	54
2.1.4 Clustering	55
2.2 Why choose the x440	57
2.2.1 IBM XA-32 chipset	57
2.2.2 Intel Xeon MP and DP processors	58
2.2.3 XceL4 Server Accelerator Cache	60
2.2.4 High-performance memory subsystem	60
2.2.5 Active PCI-X	61
2.2.6 XpandOnDemand scalability	61
2.2.7 System Partition Manager	62
2.3 The benefits of system partitioning	63
2.4 Server consolidation	65
2.4.1 Types of server consolidation	65
2.4.2 Why consolidate servers	71
2.4.3 Benefits from server consolidation	71
Chapter 3. Planning	77
3.1 System hardware	78
3.1.1 Processors	78
3.1.2 Memory	79
3.1.3 PCI slot configuration	82
3.1.4 Broadcom Gigabit Ethernet controller	86
3.2 Cabling and connectivity	88
3.2.1 SMP Expansion Module connectivity	88
3.2.2 Remote Supervisor Adapter connectivity	91
3.2.3 Remote Expansion Enclosure	92
3.2.4 Serial connections	97
3.3 Storage considerations	97
3.3.1 xSeries storage solutions	98
3.3.2 Disk subsystem performance	102
3.3.3 Tape backup	103
3.4 Server partitioning and consolidation	104
3.5 Operating system considerations	104
3.5.1 Windows 2000 Datacenter Server	106
3.5.2 Microsoft Windows NT 4.0 Enterprise Edition	109
3.5.3 Microsoft Windows 2000 Server	110
3.5.4 Microsoft Windows .NET Server	111
3.5.5 Novell NetWare	111
3.5.6 Red Hat/SuSE Linux	111
3.5.7 VMware ESX Server	112
3.6 Application considerations	114
3.6.1 Scalability and performance considerations	114
3.6.2 SMP and server types	115
3.7 Rack installation	116
3.8 Power considerations	117
3.9 Solution Assurance Review	118
Chapter 4. Installation	121
4.1 System BIOS settings	122
4.1.1 Updating BIOS and firmware	122
4.1.2 Enabling memory mirroring	122
4.1.3 Enabling Hyper-Threading	123
4.2 Device drivers	125
4.3 Operating system installation	125
4.3.1 Microsoft Windows 2000 Server and Advanced Server	126
4.3.2 Red Hat Linux installation	133
4.3.3 NetWare installation	135
4.3.4 VMware ESX Server	142
4.4 Additional Information	142
Chapter 5. Management	143
5.1 Active PCI Manager	144
5.1.1 Using Active PCI Manager	146
5.1.2 Adding adapters to the system	150
5.1.3 Analyzing an existing configuration	158
5.2 System Partition Manager	164
5.3 Process Control	169
5.3.1 Process alias rules	170
5.3.2 Process execution rules	174
5.3.3 Group process execution rules	175
Abbreviations and acronyms	187
Related publications	189
IBM Redbooks	189
Referenced Web sites	189
How to get IBM Redbooks	192
IBM Redbooks collections	192
Index	193

Match case Limit results 1 per page

IBM

xSeries 440 Planning and Installation Guide

With the addition of an RXE-100 Remote Expansion Enclosure, you can connect

an additional six or 12 PCI-X adapters to the x440. See 3.2.3,

“

Remote

Expansion Enclosure

”

on page 78 for details.

Note:

Currently, only one RXE-100 can be connected to an x440 configuration.

For configurations up to eight-way (that is, single chassis), connectivity is using

one RXE Expansion Port and cable. The dual-chassis 16-way configuration uses

two redundant RXE cables. This is described in detail in 3.2.3,

“

Remote

Expansion Enclosure

”

on page 78.

1.9

Redundancy

The x440 has the following redundancy features to maintain high availability:

Four hot-swap multi-speed fans

With four hot-swap redundant fans, the x440 has adequate cooling for each of

its major component areas. There are two fans located at the front of the

server that direct air through the SMP Expansion Modules. These fans are

accessible from the top of the server without having to open the system

panels. In the event of a fan failure, the other fan will speed up to continue to

provide adequate cooling until the fan can be hot-swapped by the IT

administrator.

The other two fans are located just behind the power supplies and provide

cooling for the I/O devices. Similar to the SMP Expansion Module fans, these

fans will speed up in the event that one should fail to compensate for the

reduction in air flow. In general, failed fans should be replaced within 24 hours

following failure.

Two hot-swap power supplies with separate power cords.

Note

: For large configurations, redundancy is achieved only when connected

to a 220 V power supply. See 3.8,

“

Power considerations

”

on page 103 for

details.

Note:

There are no parallel or serial ports on the x440. For serial connections,

use the USB to Serial Adapter, part number 10K3661, as described in 3.2.4,

“

Serial connections

”

on page 83.

Important:

Due to airflow requirements, fans should not be removed for

longer than two minutes. The fan compartments need to be fully populated

even if the fan is defective. Therefore, remove a defective fan only when a

new fan is available for immediate replacement.