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IBM 8687 Installation Guide - Page 71

Why consolidate servers, 2.4.3 Benefits from server consolidation, Single point of control

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levels, simplified backups and restores, and better asset management and security. Rational In combination, or rational, consolidation, the company's distributed applications and services are combined onto fewer servers. It is a considerably more complex undertaking, but the potential rewards are greater. Cost savings range from 25 to 75 percent here resulting from better asset utilization and elimination of unnecessary systems, reduced staffing, lower maintenance costs, and fewer operating environments to support. 2.4.2 Why consolidate servers IT managers are feeling, pressure to reduce costs, maintain or improve service levels, and maintain or improve the availability of systems that become ever more critical to daily operations. Users want new applications that are delayed or inadequate because of IT infrastructure. IT needs to provide a cost-effective and reliable service, which is made difficult by constantly changing applications. Many organizations are realizing that, as the number of servers increases, the cost and operational complexity are also propagating. In many cases, there are concerns whether multiple distributed servers can provide the application availability, hours of service, responsiveness, and ability to grow with the requirements of the business. These characteristics are being increasingly demanded by business applications. To reduce these costs, many customers are attempting to consolidate their servers into a more manageable central location. The main objectives of server consolidation are: Recentralizing servers Merging workloads onto a single large server Consolidate architecture Optimize the IT infrastructure 2.4.3 Benefits from server consolidation The main benefits of server consolidation are: Single point of control Rapidly growing firms, especially those growing through mergers and acquisitions, frequently felt that disparate distributed systems were so unwieldy to manage that they were losing control, which could constrain further corporate growth. Chapter 2. Positioning 57

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

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Chapter 2. Positioning

levels, simplified backups and restores, and better asset management and

security.

Rational

In combination, or rational, consolidation, the company's distributed

applications and services are combined onto fewer servers. It is a

considerably more complex undertaking, but the potential rewards are

greater. Cost savings range from 25 to 75 percent here resulting from better

asset utilization and elimination of unnecessary systems, reduced staffing,

lower maintenance costs, and fewer operating environments to support.

2.4.2

Why consolidate servers

IT managers are feeling, pressure to reduce costs, maintain or improve service

levels, and maintain or improve the availability of systems that become ever more

critical to daily operations.

Users want new applications that are delayed or inadequate because of IT

infrastructure. IT needs to provide a cost-effective and reliable service, which is

made difficult by constantly changing applications.

Many organizations are realizing that, as the number of servers increases, the

cost and operational complexity are also propagating. In many cases, there are

concerns whether multiple distributed servers can provide the application

availability, hours of service, responsiveness, and ability to grow with the

requirements of the business. These characteristics are being increasingly

demanded by business applications. To reduce these costs, many customers are

attempting to consolidate their servers into a more manageable central location.

The main objectives of server consolidation are:

Recentralizing servers

Merging workloads onto a single large server

Consolidate architecture

Optimize the IT infrastructure

2.4.3

Benefits from server consolidation

The main benefits of server consolidation are:

Single point of control

Rapidly growing firms, especially those growing through mergers and

acquisitions, frequently felt that disparate distributed systems were so

unwieldy to manage that they were losing control, which could constrain

further corporate growth.