Rhel on Dl980

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2 INTRODUCTION

2 RED HAT ENTERPRISE LINUX AND THE

HP PROLIANT DL980

4 HP ProLiant DL980 G7 servers

4 Red Hat Enterprise Linux 6 enhancements

6 RESILIENCY, SCALABILITY, AND EFFICIENCY

6 Self-healing resiliency7 Resilient system fabric

8 Red Hat Enterprise Linux RAS features

8 Balanced scalability

9 Scalability features in Red Hat

Enterprise Linux 6

9 Breakthrough efciencies

10 CONSOLIDATING APPLICATIONS ON

HP PROLIANT DL980 G7 SERVERS

11 EXTENDING SCALABILITY AND

AVAILABILITY WITH CLUSTERS

11 Low-cost high availability for

Enterprise Applications

11 High availability add-on for Red Hat


12 Resilient storage add-on for Red Hat


12 Load balancer add-on for Red Hat


13 SUPERIOR MANAGEABILITY

13 MIGRATING FROM RISC/UNIX TO LINUX

AND X86

15 Migrating from Solaris to Red Hat

Enterprise Linux

16 Migrating from IBM-AIX to Red Hat

Enterprise Linux

17 MIGRATION SERVICES

17 Red Hat migration services

17 HP migration services

18 TCO COMPARISONS — RISC/UNIX VS.

RED HAT ENTERPRISE LINUX AND THE

HP DL980 SERVER

18 Comparison #1: IBM Power 770 and IBM-AIX

19 Comparison #2: Oracle Sun M9000 server

20 RED HAT ENTERPRISE LINUX AND HP

PROLIANT DL980 SERVERS — THE SMART

ENTERPRISE CHOICE

PRICE. PERFORMANCE. ADVANTAGE.RED HAT ENTERPRISE LINUX ONTHE HP PROLIANT DL980 SERVER

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INTRODUCTION

Until now, x86 servers lacked the performance, availability, and scalability of larger proprietary platforms,

which hindered the adoption of x86 servers for core enterprise applications. Today, many enterprises

are migrating core enterprise applications from expensive proprietary platforms or older x86 servers to

Red Hat® Enterprise Linux® on multi-core, standards-based x86 servers. The new HP ProLiant DL980 G7

server with Intel Xeon Processor 7500 series running Red Hat Enterprise Linux overcomes these limitations.

The HP DL980 server is not just a larger x86 platform—it is designed for Linux and enterprise applications.

It includes large internal storage capacity, network and I/O expandability, built-in availability and reliability

features, and advanced power management capabilities. The server features new HP PREMA architecture

with Smart CPU caching and a resilient system fabric to increase processing power, reduce throughput

bottlenecks, and enhance reliability—capabilities not previously available in an economical x86 environment.

The HP DL980 server running Red Hat Enterprise Linux is an excellent platform for scale-up consolidationand for virtualization of legacy UNIX, Linux, and Windows workloads. The HP DL980 server running Red Hat

Enterprise Linux can help address enterprise-level IT challenges with:

• The ability to scale resources effectively to handle high availability demands and exponential data growth

• A standards-based Linux operating system and x86-based servers to lower costs

• The reliability to handle large, single-system databases and high-density virtualization

• Lower support and operating costs by reducing server sprawl

This whitepaper highlights the benets of Red Hat Enterprise Linux running on the HP DL980 server, and the

related advantages of running enterprise applications in lower cost environments.

RED HAT ENTERPRISE LINUX ANDTHE HP PROLIANT DL980 G7 SERVER —AN EXCELLENT SCALE-UP CONSOLIDATION PLATFORM

New standards in multi-core and virtual systems require a platform that can manage complexity—scaling

up or out to meet business needs. Red Hat Enterprise Linux has proven performance on systems with over

a hundred cores and many terabytes of memory, making it suitable for the largest enterprise application

deployments. Furthermore, HP works with Red Hat to ensure that workload scaling is effectively imple-

mented on the HP DL980 server.

Whether implementing a single and very large data-intensive workload, or many consolidated or virtualized

workloads, Red Hat Enterprise Linux running on the HP DL980 G7 server is an ideal platform to deploy and

scale up enterprise environments with condence.

The server includes the following features:

• Smart CPU caching technology that improves CPU utilization and performance

• Hardware self-healing resiliency for maximum application uptime

• Intel Xeon 7500 and 6500 series processors with up to eight cores per processor

HP ProLiant DL980 servers and Red Hat Enterprise Linux

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• Expandable eight-socket server, congurable with up to 64 processor cores

• 128 DIMM slots, for a system maximum of two TB of memory (using 16 GB DIMMs)

• Up to 16 I/O slots to support the most I/O-intensive applications

The latest release from Red Hat, Red Hat Enterprise Linux 6, includes features that make it an exceptional

operating system for the HP DL980 server and core enterprise applications:

• Support for up to 4,096 CPUs and 64 TB of memory

• Automatic isolation of defective CPUs and memory

• Improved hardware awareness that allows the kernel to take better advantage of multi-core and NUMA

architectures, and when possible, consolidate tasks to fewer CPU sockets to reduce power consumption

• Resource controls that provide the ability to reduce resource contention, improve overall system perfor-

mance, and help applications meet service level agreements (SLAs)

• Hardware abstraction that allows applications to move from physical to virtualized environments inde-

pendently of underlying hardware

Many larger, data-intensive enterprise workloads are better suited to scale-up server technology. There are

several advantages to using 64-core HP DL980 servers running Red Hat Enterprise Linux for critical and

intensive enterprise workloads:

• Large enterprise databases and data warehouse workloads often function better when deployed in

scale-up systems. With the HP DL980 server and Red Hat Enterprise Linux, workloads can be effectively

scaled to 64 cores in a single x86 server, or further if running clustered applications such as Oracle Real

Application Clusters (RAC).

• Single-system latency and bandwidth is lower in a scale-up versus scale-out server implementation.While

solutions such as InniBand can overcome many latency issues, this extra layer increases tuning require -ments and complexity in a scale-out conguration.

• Proprietary systems are not necessarily designed with Linux as their ideal operating system. The HP

DL980 server is specically designed for Linux and leverages the collaborative engineering efforts

between HP, Intel, and Red Hat to take advantage of new technology.

• The ability to cache all or most active database buffer blocks into a single large memory cache can

increase performance and throughput, while reducing application latency.

• Large, scale-up workloads can run on Red Hat Enterprise Linux on the HP DL980 with a much lower total

cost of ownership (TCO).

Deploying large Oracle databases on the HP DL980 server running Red Hat Enterprise Linux offers the

following advantages:

• Provides predictable user response times. The design delivers excellent transactional workload (OLTP)

and data warehouse (DW) performance.

• Ability to grow database workloads over time, scaling to thousands of users. Data growth in today’s IT

environment is nearly exponential—together, the HP DL980 server and Red Hat Enterprise Linux can

handle dynamic changes and meet future requirements.

• Sustainable high-performance I/O and system throughput.


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HP PROLIANT DL980 G7 SERVERS

The HP ProLiant DL980 G7 is the newest member of HP’s industry-leading scale-up x86 ProLiant family. HPdesigned this server to take full advantage of Intel’s latest and most capable Intel Xeon processor, the Intel

Xeon processor 7500 series with Quick Path Interconnect (QPI). Building on the advanced performance and

reliability of the Intel processor technology and aligned with the industry-standard Red Hat Enterprise Linux

operating system, the HP DL980 G7 delivers an enhanced level of scale-up x86 performance, availability,

and reliability.

The ProLiant DL980 G7 is the rst server to use the HP PREMA architecture, incorporating a node controller

design with smart CPU caching and resilient system fabric. HP PREMA architecture represents HP’s tech-

nology direction for scale-up x86 servers. The PREMA architecture is the design foundation for x86 servers

that need to deliver more scalability, resiliency, and efciency to meet the requirements of the most

demanding, data-intensive workload environments, as well as large scale consolidation and virtualization.

• Balag fr rl a f: Maximizing uptime is a key requirement for supporting virtual-

ized, business-critical workloads. The HP DL980 server with HP PREMA architecture delivers hardware-based resiliency with breakthrough cost-efciency.

• Flbl, al- lat: Workloads from multiple, legacy eight- to 32-core RISC servers can be

virtualized and consolidated onto a single HP DL980 server. The scale-up architectures of the HP DL980

server enables IT to offer improved resource availability combined with advanced virtualization and

workload management.

• Hgh rfra tg: The HP DL980 server is an excellent platform for research and devel-

opment applications that require large, globally addressable memory, as well as for applications with

regular memory access that can use large caches and/or large numbers of registers.

RED HAT ENTERPRISE LINUX 6 ENHANCEMENTS

Red Hat Enterprise Linux 6, the latest release of the trusted datacenter platform from Red Hat, delivers

advances in high availability, application performance, virtualization, and scalability that make it a great

match for the HP DL980 server. With Red Hat Enterprise Linux 6, enterprises can deploy physical, virtual,

and cloud computing on the HP DL980 server, reducing complexity, increasing efciency, and minimizing

administration overhead, while leveraging technical skills and operational know-how.

TABLe 1: Red HAT enTeRpRise Linux 6 enHAncemenT summARy

FEATURE FUNCTION BENEFIT

Hardware reliability,

availability, and

serviceability

Leverages new hardware capabilities to offer

a number of RAS improvements:

•Hot-adding of devices and memory

•Enhanced error checking for PCIe devices

through advanced error reporting•Support for machine check architecture (MCA)

capabilities allows the system to recover from

hardware errors that might previously have

caused complete system failure

New features improve system availability

by coupling advanced error recovery with

enhanced logging/reporting of errors—

thereby increasing mean time between

failures (MTBF) and reducing mean time to

repair (MTTR)

Supports MCA capabilities and comprehen-

sive data integrity checking, previously only

available on proprietary systems


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TABLe 1: Red HAT enTeRpRise Linux 6 enHAncemenT summARy continued

FEATURE FUNCTION BENEFIT

Virtualization Fully integrated kernel-based virtualization

using the KVM hypervisor. KVM benets from

a number of core kernel features such as the

tickless kernel, control groups (cgroups), and

the completely fair queuing (CFQ) schedule.

Red Hat leadership in KVM development has

fostered the development of sophisticated

paravirtualization capabilities.

KVM hypervisor enhancements make it

practical to deploy large-scale enterprise

applications in virtualized environments.

SR-IOV-enabled performance enhancements

allow I/O-bound applications to be virtual-

ized, so IT departments can adopt a run-

anywhere capability.

Performance The wide range of performance enhance-

ments in Red Hat Enterprise Linux 6 reaches all

components of the platform. For example: LUN

ush daemons that enable dramatic perfor-

mance improvements for applications deployed

on large I/O subsystems.

Benchmarks of Red Hat Enterprise Linux 6

showcase leadership over competing UNIX,

Microsoft, and VMware products across

many applications.

Scalability Red Hat Enterprise Linux 6 scales to the largest

systems on the market today. For x86-64

systems, limits are now up to 4,096 CPUs,

33,000 IRQs. 64 TB of memory, four million

processes, and 32,000 threads per process.

The scalability features are not

restricted to physical systems. Red Hat

Enterprise Linux 6 also provides improved

scalability of virtual guests. Physical, virtual,

and cloud deployments can scale to meet

business requirements.

Resource

management

The new cgroups feature of Red Hat Enterprise

Linux 6 offers a powerful way to allocate

processor, memory, and I/O resources amongapplications and virtual guests.

The ability to deploy exible and virtual

environments (including cloud) more easily,

mixing critical enterprise applications withlow-priority background applications, while

ensuring that the resources needed by both

are properly allocated.

Provisioning

and workload

management

Many new features in the I/O subsystem cover

interconnects (FCoE, iSCSI, etc.) and hardware/

software optimizations, support for thin provi-

sioning, and simplied administration.

Red Hat Network and Red Hat Network

Satellite continue to provide management,

provisioning, and monitoring for large

deployments.

Security Red Hat Enterprise Linux provides a complete

security stack, from network rewall control to

secure containers for application isolation and

SELinux for access enforcement, that has made

Red Hat Enterprise Linux one of the most certi-

ed operating systems available.

As a host, a guest, or in the cloud, applica-

tions can be secured with a common and

comprehensive suite of technologies and

policies—backed by Red Hat’s global Security

Response Team


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RESILIENCY, SCALABILITY, AND EFFICIENCY

HP DL980 server, Intel Xeon processors, and Red Hat Enterprise Linux provide complementary features that

increase resiliency, scalability, and efciency for critical and intensive workloads. The key benets of these

features include:

• Reduced unscheduled downtime

• Improved system performance

• Increased data integrity

• Balanced scalability

• Reduced power consumption

SELF-HEALING RESILIENCYProprietary hardware has a longer history of providing RAS features, but at a premium that has kept those

benets from less-expensive systems. New x86-based hardware with many cores and RAS features, such as

the HP DL980 server, represents a new opportunity for datacenters that were previously locked into propri-

etary solutions.

The HP Proliant DL980 G7 server’s HP PREMA architecture (Figure 1) provides resiliency features that are

enabled by built-in application, infrastructure, I/O, memory, and processor capabilities. The HP DL980 takes

advantage of and builds on enhancements in the Intel processor technology to provide the high levels of self-

healing resiliency required by mission-critical enterprise environments—resulting in a 200 percent boost in

server availability1.

FIGURE 1: HP PREMA ARCHITECTURE

1 Based on system crash rates comparison between the DL980 G7 to the DL785 G5. System crash rate is determined by availability features

such as hot-swap components, redundant paths, ECC, and tolerant links such as QPI.

HP PREMA Architecture

Resilient HP XNC Fabric

CPU resiliency

Machine Check Architecture

R e s i l i e n c y System resiliency

OS enhanced availability

Error isolation

Link level entry

Corruption prevention

Hot plug RAID

Advanced memory protection


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The Intel Xeon Processor 7500 series, with next-generation Intel microarchitecture, can run the most

demanding enterprise Linux applications and maintain peak workload responsiveness. The HP PREMA archi-tecture’s resilient system fabric works with Intel Xeon features such as cyclic redundancy checksum (CRC),

link-level retry, link width reduction (LWR), and link retrain to keep the system operational in the presence

of link errors.

By tightly collaborating with Red Hat, HP ensures that Red Hat Enterprise Linux is aware of and leverages

the resiliency features that are enabled in the system.

RESILIENT SYSTEM FABRIC

HP PREMA architecture extends the advanced reliability of the Intel Xeon processor 7500/6500 series in the

HP ProLiant DL980 G7 server with a resilient XNC fabric. This interconnect fabric provides higher intercon-

nect bandwidth to improve performance and scalability, and provides availability features consistent with

the QPI fabric. The XNC fabric enables:

• Rat ata ath: The XNC fabric’s provision of 50 percent more interconnect links (six here versusfour in most competitive eight-socket systems with no node controller) improves system performance by

providing more bisection bandwidth and dynamically balancing the trafc on the links. The fabric redun -

dancy also helps reduce unscheduled downtime. A complete failure in any one of the XNC links can be

addressed with a system re-boot. The system will re-initialize and route around the failed link, allowing

a scheduled service event to be delayed until a convenient time, versus requiring immediate service to

get the server back up.

• Ra rvr: Improved error logging and diagnostics information enable administrators to easily take

corrective actions. If a fatal error occurs, the HP DL980 G7 server captures the error log on the re-boot

to assist in diagnosis. With the system running, the administrator can then use the log information to

diagnose the error and rapidly determine which repair assemblies are needed.

HP PREMA architecture also reduces communication errors on overloaded systems, providing 50 percent

more interconnect capacity and dynamic QPI routing.

• CPU resiliency

• MCA — enables detection and capture of errors and faults for use by all of the system components

• QPI link level retry — re-transmits data to make certain data transfer is completed without loss

of integrity

• Memory resiliency

• Memory mirroring— backup of main memory can be maintained on a second DIMM and failover in the

case of a component failure

• Rank sparing— data from a failing rank pair is copied to another rank pair after exceeding a threshold

of correctable errors

• Demand scrubbing — when the system detects a correctable error through the data and ECC bits,

it writes back the proper data and ECC bits to memory

• Memory (SMI) Link level retry — re-transmits data to make certain the transmission is completed

without loss of data integrity


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• I/O resiliency

• Corruption prevention — hardware will shut down the PCIe (I/O subsystem) to contain errors andprevent contamination of the sub-system or LAN

• Link level retry — the processor to I/O subsystem link retransmits data to make certain the transmis-

sion is completed without loss of data integrity

• Hot plug redundant fans and power supplies

• Application resiliency

• Operating system enhanced availability — tight collaboration with Red Hat ensures that Red Hat

Enterprise Linux is aware of system resiliency features, including corrective and recovery actions

(ignore, correct, or crash the system to prevent data loss) based on MCA logs triggered through

HP rmware

RED HAT ENTERPRISE LINUX RAS FEATURES

Red Hat Enterprise Linux 6 delivers the complementary software support features to make HP and Intel’s

hardware advances available to users at an extremely competitive cost point. These features include:

• RAS hardware-based hot add/swap of CPUs and memory is enabled

• On-lining/off-lining for the Intel Xeon Processor 7500 series is also enabled

• Machine-check hardware support enables the system to recover from some previously fatal hardware

errors with minimal disruption

• Memory pages with errors can be declared as poisoned, and will be avoided

• Advanced reporting for PCIe devices enable problems to be detected quickly and, if necessary, the failed

device can be hot-swapped with a replacement

• Automated bug reporting tool provides a more consistent way to identify and report system exception

conditions like kernel failures and user-space application crashes

BALANCED SCALABILITY

To meet increasing demands for scalability and resiliency, simply adding processors, memory, and I/O slots

is not sufcient to achieve the necessary results. When a system scales to a larger number of interconnected

processors, the communication and coordination between the processors grows at an exponential rate,

creating a system bottleneck. To solve this issue in the eight-socket x86 server, HP leveraged the design

of its higher-end mission-critical servers, including its robust Integrity, Superdome 2, and NonStop systems.

At the core of the HP PREMA architecture is a node controller, derived from technology powering the HP

Integrity Superdome 2. The node controller enables two key features: smart CPU caching and the resilient

node controller (XNC) fabric. These features serve to reduce communication and coordination overhead and

provide availability features consistent with Intel’s Xeon 7500/6500 series processor. HP smart CPU cachingtechnology results in:

• Improved utilization and performance, allowing processors to remain focused on tasks with

less interruption

• Faster access to local memory and reduced inter-processor communication trafc


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Red Hat Enterprise Linux running on HP’s PREMA architecture provides a platform for applications that

require more performance and capacity than offered by four-socket x86 systems. The combined solutionsupports an appropriately balanced system with more processors, more memory, and more I/O than

previous generation x86 solutions.

SCALABILITY FEATURES IN RED HAT ENTERPRISE LINUX 6

Much engineering effort has gone into Red Hat Enterprise Linux 6 to optimize for NUMA architectures,

like the HP PREMA architecture, and to provide tools to manage users and applications on NUMA systems.

This includes system changes such as CPU afnity, which tries to prevent an application from unnecessarily

moving between NUMA nodes. This signicantly improves performance. Another tool is CPU pinning, which

allows a program or a system administrator to bind a running application to a specic CPU or set of CPUs.

These tools and others make the difference between a large system that runs well and one that runs poorly.

Red Hat Enterprise Linux 6 moves from the xed size array to a dynamic list structure for processor infor -

mation. The list is allocated dynamically — if there are eight processors in the system, only eight entries are

created in the list. The list structure allows a ner granularity of locking — if, for example, information needs

to be updated at the same time for processors 6, 72, 183, 657, 931, and 1546, this can be done with greater

parallelism. Situations like this obviously occur much more frequently on large systems than small systems.

The Split LRU VM uses several lists of memory pages instead of a single, monolithic memory manager.

These include separate page lists for lesystem-backed data (the master data exists in a le in the storage

subsystem and can be read again whenever needed), swap-backed data (the VM can page out memory

to disk and read it back in when needed), and non-reclaimable pages (pages that can not be discarded by

the VM). There are also signicant improvements to locking, making the system more scalable for large

numbers of processors and large amounts of memory. The end result is that the Split LRU VM in Red Hat

Enterprise Linux 6 delivers a signicant improvement in system performance, especially for large systems.

BREAKTHROUGH EFFICIENCIES

In addition to the balanced scaling and self-healing resiliency enabled by the HP PREMA architecture, the HP

ProLiant DL980 G7 server incorporates key ProLiant innovations to deliver breakthrough efciency:

• Extend datacenter environmental capacity with HP Thermal Logic that reduces power consumption

to help extend datacenter power capacity.

• HP integrated Lights-Out 3 (part of Insight Control) provides remote console performance up to eight

times faster than the previous generation iLO 2 processor—and equal to the performance of KVM and

software-based remote management solutions.

• Increased levels of application availability and 75 percent less downtime2 with HP Mission

Critical Services.

Red Hat Enterprise Linux 6 features to increase efciency include:

• Complete review of system services to reduce power consumption, including the tickless kernel feature,which keeps systems in the idle state longer, resulting in net power savings.

• Active State Power Management and Aggressive Link Power Management provide enhanced system

control, reducing the power consumption of I/O subsystems. Administrators can actively throttle power

levels to reduce consumption.

• Realtime drive access optimization reduces le system metadata write overhead.

2 IDC whitepaper, “HP Mission Critical Services: ROI Benet Analysis”, August 2010.


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CONSOLIDATING APPLICATIONSON HP PROLIANT DL980 G7 SERVERS

The key elements to consolidating many applications onto one server include: a large system, support

for many CPUs, large memory, excellent I/O, control of resources, isolation of applications, and reliability.

As previously discussed, the HP DL980 server running Red Hat Enterprise Linux is an ideal platform for

consolidation as it provides the necessary performance, scalability, and reliability that effective consolida-

tion demands. Red Hat Enterprise Linux also includes features to control resources, isolate applications,

and provide extensive I/O.

A classic problem with putting multiple applications on a single server is the risk of one application impacting

other applications. Control groups, or cgroups, eliminate this issue by combining sets of tasks and allocating

and managing the amount of resources that they are able to consume. For example, for a database applic-

ation, an administrator could allocate 80 percent of four CPUs, 60 GB of memory, and 40 percent of diskI/O into the SAN. A web application running on the same system could be allocated two CPUs, two GB of

memory, and 50 percent of available network bandwidth.

Virtualization using Red Hat KVM technology enables heterogeneous applications to be consolidated

by providing a complete virtual machine for each guest. KVM virtual machines require the installation

of a guest operating system. This operating system is completely independent from the host–using a

Red Hat Enterprise Linux 6 host, it is possible to run Red Hat Enterprise Linux 3, 4, 5, or 6, or Windows

guests with full support. Because virtualization is kernel-based, Red Hat Enterprise Linux 6 features are

available in the hypervisor. This includes resource control with cgroups and automatic guest isolation with

SELinux-based sVirt.

Red Hat Enterprise Linux 6 also supports high-trafc I/O and large storage environments. The default

EXT4 le system provides high I/O and storage performance and supports single lesystems up to 16TB.

The optional XFS le system supports up to 100TB le systems. Red Hat Enterprise Linux 6 supportslarge numbers of disk drives, solid state storage (SSD), has native RAID, and has effective storage

management tools.

The combination of Red Hat Enterprise Linux control, virtualization, and I/O technologies on the HP DL980

server provides an excellent platform for large-scale consolidation or migration projects. Benets include:

• Reducing server sprawl by supporting fewer physical servers running hundreds of virtual machines

• Lowering costs by using less energy, oor space, and datacenter resources

• Migrating legacy Red Hat Enterprise Linux and UNIX applications to Red Hat Enterprise Linux 6

on energy-efcient servers

• Reducing risk with a secure, scalable, and reliable integrated hypervisor


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EXTENDING SCALABILITYAND AVAILABILITY WITH CLUSTERS

In the past, the ability to offer the highest availability was often the key selling feature of proprietary

RISC/UNIX servers. However, according to recent IDC studies, this trend is changing rapidly. In 2009,

x86 servers captured more than 55 percent of all server revenue and accounted for more than 96 per-

cent of server units shipped worldwide. Enterprises are increasingly choosing standards-based x86 servers

such as the HP DL980 server with the Red Hat High Availability Add-On to handle mission- and business-

critical workloads.

Whether using High Availability Cluster Multi-Processing (HACMP) for IBM servers or Solaris Cluster for

Sun SPARC servers, these solutions are proprietary and costly to purchase and support. The high availability

offering from Red Hat is rapidly establishing itself in the corporate enterprise. Almost all core business appli-

cations—ERP, CRM, sales force automation, inventory, and supply chain management—can benet from theRed Hat High Availability Add-On.

The adoption of Red Hat Enterprise Linux as the platform of choice for high-availability clusters is driven by

a number of factors. First, many organizations nd that when clustering with Red Hat Enterprise Linux, it is

possible to match or exceed the performance and availability of equivalent proprietary solutions. Second,

the open source character of Linux gives organizations the exibility to tailor a solution to t their specic

needs across multiple workloads. Finally, by using open source software, organizations avoid the costly

licensing and support fees associated single-vendor solutions—dramatically reducing TCO.

LOW-COST HIGH AVAILABILITY FOR ENTERPRISE APPLICATIONS

For applications that require maximum uptime, Red Hat Enterprise Linux with the High Availability Add-On,

Load Balancer Add-On, and Resilient Storage Add-on is the answer. The add-0ns offer three main functions:

• Application/service failover — provides high availability of key applications and services eliminatingsingle points of failure

• IP load balancing — load balances incoming IP network requests across a farm of servers

• Glbal l t— a cluster le system that supports concurrent and coherent le system access from

all members within the cluster

HIGH AVAILABILITY ADD-ON FOR RED HAT ENTERPRISE LINUX

The High Availability Add-On for Red Hat Enterprise Linux provides continuous availability of services by

eliminating single points of failure. By offering failover services between nodes within a cluster, the High

Availability Add-On supports high availability for up to 16 nodes.

When using the High Availability Add-On, a highly available service can failover from one node to another

with no apparent interruption to cluster clients. The High Availability Add-On also ensures absolute dataintegrity when one cluster node takes over control of a service from another cluster node. It achieves this

by promptly evicting nodes from the cluster that are deemed to be faulty using a method called fencing

that prevents data corruption. The High Availability Add-On supports several types of fencing, including

both power- and storage area network (SAN)-based fencing.

The High Availability Add-On provides application and guest operating system failover capabilities.

Applications can be moved between guest operating systems on the same or different physical systems,

and entire guest operating system environments can be moved between physical systems.


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Applications can be monitored for correct behavior and the results used to trigger automated recovery

procedures. The High Availability Add-On also enables failover for open source applications such as Apache,MySQL, and PostgreSQL, or commercial applications such as SAP, which can be coupled with resources like

IP address and single-node lesystems to form highly available services. The High Availability Add-On can

also be easily extended to any user-specied application that is controlled by an init script per UNIX System

V (SysV) standards.

The High Availability Add-On includes the following key components:

• Cluster infrastructure — provides fundamental functions for nodes to work together as a cluster.

• High-availability service management — provides failover of services from one cluster node to another

in case a node becomes inoperative. It also isolates unresponsive applications and nodes so they can’t

corrupt critical enterprise data.

• Cluster administration tools— centralized conguration and management tools for setting up, cong-

uring, and managing the cluster.

RESILIENT STORAGE ADD-ON FOR RED HAT ENTERPRISE LINUX

The Resilient Storage Add-On for Red Hat Enterprise Linux provides numerous le system capabilities for

improving resiliency to system failure. The Resilient Storage Add-On includes the High Availability Add-On.

This add-on also includes:

• Global File System 2 (GFS2) — for supporting concurrent access. GFS2 is a cluster lesystem that is fully

POSIX compliant gives each server in a cluster direct access to a shared block device over a local storage

area network (SAN) of up to 100 TB. Each member of the cluster has direct access to the same storage

device, and all cluster nodes can access the same set of les at the same time without corrupting data.

• Cluster Logical Volume Manager (CLVM)— The CLVM provides a cluster-wide version of LVM2. CLVM

provides the same capabilities as LVM2 on a single node, but makes the volumes available to all nodes

in a Red Hat cluster. The logical volumes created with CLVM make logical volumes available to all nodes

in a cluster.

• Clustered Samba (technology preview)— a cluster-aware version of the popular Samba service that

allows multiple instances of Samba running in cluster export shares on cluster lesystems like GFS2 to

clients in an active-active manner.

LOAD BALANCER ADD-ON FOR RED HAT ENTERPRISE LINUX

The Load Balancer Add-On for Red Hat Enterprise Linux provides support for Transmission Control Protocol

(TCP) load balancing independent of applications. The Load Balancer Add-On includes the following features:

• Load balancing— balances the IP load across a set of physical servers based on a preordained algorithm,

thus evenly distributing the load among available servers for maximum efciency and high availability.

• Service monitoring— monitors the health of services running on the physical servers. If a serviceon a physical server malfunctions, the service stops sending jobs to that server until it returns to

normal operation.

• GUI-based management— centralizes management of both virtual and physical servers as well as for

the services running on the physical servers. It also provides conguration and monitoring tools.


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SUPERIOR MANAGEABILITY

Both Red Hat and HP offer tools to help manage servers more efciently. Red Hat Network (RHN) Satellite

is a systems management platform that makes Linux deployable, scalable, manageable, and consistent.

RHN Satellite provides administrators with the tools to efciently manage their systems, lowering per-

system, deployment, and management costs. RHN Satellite offers superior security by having a single

centralized tool, secure connection policies for remote administration, and secure content. Use

RHN Satellite to ensure security xes and conguration les are applied across the environment

consistently. With RHN Satellite administrators can:

• Update software in one-click with an easy-to-use interface

• Implement role-based administration

• Choose between exible delivery architectures — satellite, proxy, or hosted

• Group systems together for easier administration

• Automate formerly manual tasks

• Manage the complete lifecycle of the Linux infrastructure

• Track the performance of Linux systems

HP Insight Control for Linux is an essential server management platform that integrates the best of open

source and HP technologies on HP SIM (System Insight Manager). Insight Control is used for discovery,

imaging, provisioning, server deployment, remote operations, virtualization, and power management.

Open source tools, such as Nagios and XEN, are fully integrated at system start-up and auto-congured for

immediate user productivity. Lifecycle management capabilities are complemented by multi-system scaling,

power management, and direct-to-the-hardware control.

Key benets of Insight Control on the HP DL980 server include:

• Integrated tool set for Linux management productivity

• Customizable open source and commercial integration

• Linux-managed reference platforms for business-important infrastructures

• Worry-free protection with global support from Hewlett-Packard

According to an IDC study, interviews with customers who had deployed Insight Control showed that, on

average, operational expenses were reduced by $48,000 USD for every 100 users in their organization over

a three-year period when using HP management tools. 3

MIGRATING FROM RISC/UNIX TO LINUX AND X86

Managing and supporting legacy, proprietary servers like Sun SPARC or IBM POWER servers is expensive.

Legacy RISC server environments typically consist of many under-utilized, under-virtualized servers that

are sized for peak workloads. This increases the cost of application deployment and system management.

The HP DL980 server running Red Hat Cluster Suite can reduce TCO with consolidation, high availability,

virtualization, and simple workload management.

3 IDC whitepaper sponsored by HP, “Gaining Business Value and ROI with HP Insight Control,” Doc # 210479, May 2009. Actual value of

$48,480 over three years.


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The following table compares different operating system environments against key metrics required for

running mission-critical enterprise applications.

TABLe 2: opeRATinG sysTem compARison

FEATURE RED HAT ENTERPRISE LINUX SOLARIS IBM-AIX

Availability Harar: Runs on x86 and x86-64

servers, blades, clusters, grids,

Itanium POWER, and IBM System z

mainframes. Red Hat Enterprise Linux

provides the exibility to take advan-

tage of current and future hardware.

sftar: More than 4,000 software

applications are available and certi-

ed, including applications fromleading software vendors such as SAP,

SAS, and Oracle. The most popular

open source applications, from

Apache to Postgress, are included

with Red Hat Enterprise Linux. In

addition, most open source applica-

tions are available as packages for

Red Hat Enterprise Linux and can be

managed with RHN Satellite.

HA A-o rt: Red Hat

High-Availability clustering, Red Hat

Resilient Storage, and Red Hat

Load Balancer.

Harar: Solaris 10 is

supported on SPARC and x86

servers sold by Oracle and

other vendors.

sftar: Solaris 10 on x86

has limited application avail-

ability to date. Many software

vendors providing SPARC-

based versions of applicationsfor Solaris have not ported

those applications to Solaris

on x86.

HA rt: Solaris Cluster

Harar: IBM-AIX runs

only on Power systems.

sftar: Limited appli-

cation level availability

HA rt: PowerHA,

High Availability Cluster

Multi-Processing

(HACMP), and

EchoCluster.

Virtualization Integrated KVM hypervisor, Red Hat

Enterprise Virtualization, Red Hat

Enterprise Virtualization for Desktops.

Virtualization on Red Hat is secured

using the SELinux standard, and

is backed by Red Hat Network for

security updates.

Red Hat Enterprise Linux supports

sandboxing using SELinux to secure

applications in their virtual space. The

resources for these virtual spaces can

be managed using cgroups.

Red Hat Enterprise Virtualization high

availability ensures that high priority

virtual machines are automatically

restarted on failure of the VM itself or

the host on which it resides.

Containers, Solaris xVM,

domains, Sun xVM VirtualBox

IBM MicroPartitions.

PowerVM, LPAR

IBM Power servers, AIX

in combination with

PowerVM


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TABLe 2: opeRATinG sysTem compARison continued

FEATURE RED HAT ENTERPRISE LINUX SOLARIS IBM-AIX

Management Red Hat Network Satellite: Provides

powerful systems administration

capabilities such as management,

provisioning, and monitoring for

large deployments.

Advanced systems and application

visibility with technology ranging

from PowerTop for application

power consumption to SystemTap

for dynamic application tracing

(similar to DTrace).

Converged infrastructure — HP

Insight Dynamics-Virtual ServerEnvironment–Using SIM with Insight

Rapid Deployment Pack. The Rapid

Deployment Pack automates the

process of deploying and provi-

sioning server software, combining

an off-the shelf version of Altiris

Deployment Solution for Linux and

the ProLiant Integration Module.

Sun Management Center:

• Provides in-depth monitoring and

diagnostics for systems, OS, and

services

• Provides Solaris Containers

support: management, monitoring,

reporting, resource utilization,

and scheduling

• Manages advanced Solaris

10 features, including Solaris

Container and DTrace

IBM Enterprise

Management:

• Manages workload

partitions across

multiple systems

• Monitors and

manages energy

use

• Congures and

deploys virtual

AIX images

• Manages pools of

virtual resourcesas a single system

Provisioning Red Hat Network provisioning

module:

• Bare metal provisioning

• Existing state provisioning• Virtual guest provisioning

• Multi-state rollback (includes

snapshot-based recovery)

• Conguration management

• Application provisioning for

RPM packages

• Construct and deploy multiple

workload-specic congurations

• Patch-level update and reporting

JumpStart Enterprise

Toolkit (JET):

• Installs any of multiple versions of

Solaris onto either SPARC or x86/x64 based clients

• Deploys Flash archives

• Utilizes multiple boot methods:

bootp, dhcp (including grub for

x86/x64), and wanboot

• Works across multiple subnets

Tivoli Provisioning

Manager:

• Can create thou-

sands of virtualmachines

• pSeries provi-

sioning tool

MIGRATING FROM SOLARIS TO RED HAT ENTERPRISE LINUX

Now is the time to migrate business-critical Solaris workloads to Red Hat Enterprise Linux and the HP DL980

sever. Enterprises have been migrating web server farms, web applications/portals, ERP systems, and home-

grown applications to Red Hat Enterprise Linux on HP ProLiant servers for years. However, some heavier

workloads that required vertical scalability and higher levels of availability remained on proprietary RISC

systems. It now makes practical and economical sense to migrate an increasing number of these vital work-

loads to an x86 HP DL980 server platform.


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There are a number of advantages to moving legacy enterprise Solaris workloads to Red Hat

Enterprise Linux. Since both the Red Hat Enterprise Linux and Solaris platforms use POSIX compliantAPIs, porting time is reduced. In addition, the open source software used with the Solaris platform is

generally available in Red Hat Enterprise Linux, which speeds the migration and training process. HP also

offers a Solaris-to-Linux porting kit, which can reduce porting time by 10 times and the number of errors

by 90 percent.

cAse sTudy:

Cox Enterprises — a leading communications, media, and automotive services company, with revenues

of nearly $15 billion.

• B hallg: To increase performance and exibility for growth, while creating savings around

software support and maintaining reliability and availability

• Ra fr grat: Cut costs related to PeopleSoft application deployment, power consumption,

and RAC space utilization.

• slt: PeopleSoft HR and nancial applications running on physical and virtual HP ProLiant servers.

The migration was completed in 24 hours over the course of one week.

• Bt: 73 — 82% gains in process performance (processes taking 11 hours in previous environment take

two to three hours in post-migration environment); signicant cost savings; increased exibility, perfor-

mance, and infrastructure homogeneity

“From engineers to application developers to customers to management,

we’ve had nothing but positive migration reviews.”

– Dane Bamburry,

Senior Enterprise ArchitectCox Enterprises

For more information, see

htt://rhtr.l.rr./2010/11/rh_trr__4362527_1010__b3.f

MIGRATING FROM IBM-AIX TO RED HAT ENTERPRISE LINUX

Migrating applications from IBM-AIX to Red Hat Enterprise Linux on HP ProLiant servers is a straight

forward process. IBM offers Linux on POWER, and supplies tools to help evaluate what is required to move

from AIX to Linux. The advantage of migrating to the subscription-based Red Hat Enterprise Linux running

on HP ProLiant servers, however, is lower TCO and better price/performance than competitive IBM offerings.

cAse sTudy:Wells Fargo is the fourth-largest bank in the US by assets and the third-largest bank by market capitalization.

• mgrat : Wells Fargo wanted to migrate their teller application running on IBM-AIX to Red Hat

Enterprise Linux on an x86 platform. The teller application is a business-critical application for the bank

and runs in over 100 of the bank’s branches.


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• Solution: HP migrated the teller application, consisting of over four million lines of code, along with all

of the third-party and open source applications, from the IBM-AIX platform to Red Hat Enterprise Linuxon HP ProLiant servers.

• Rlt: The application was ported and went to production in about eight months. The HP migra-

tion team worked closely with the Wells Fargo and third-party ISVs throughout the engagement and

completed the project on schedule.

MIGRATION SERVICES

RED HAT MIGRATION SERVICES

To guide IT staff through the migration process, Red Hat Consulting offers migration services to help plan

and execute a migration to Red Hat Enterprise Linux. Red Hat consultants are eld-tested Linux veterans

who guide team members through migration planning and ensure successful new deployments of Red HatEnterprise Linux. Red Hat consultants have decades of experience working with leading companies in the

nancial services, healthcare, and telecommunication industries, as well as with government agencies

around the world.

Involving a consultant early provides valuable insight into migration best practices. This approach results

in an IT staff that is better equipped to migrate opportunistically, and enables IT to:

• Maximize cost savings and efciencies as the transition progresses

• Speed time-to-production

• Drive faster return-on-investment (ROI)

HP MIGRATION SERVICES

HP offers a wide range of migration capabilities to help datacenter staff successfully move business and

mission-critical applications and databases to Red Hat Enterprise Linux on HP scale-up ProLiant servers like

the HP DL980 G7 server. HP’s experienced Linux service professionals work with IT teams to design, develop,

and continuously enhance a Red Hat Enterprise Linux solution in alignment with specic business objectives.

Red Hat migration services from HP help streamline the transition from RISC/Unix to Linux, save time, and

reduce costs. HP services encompass complete end-to-end delivery, from migration planning and execution

to post-migration activities and detailed reporting and testing. HP also provides ongoing support services

to help operate and continually improve the infrastructure.

The migration services provide expert project management and are organized into four steps:

• Strategy — Discover and analyze the current environment, plan target environment and migration

strategy, and create the business case

• Design — Design an infrastructure to host the migrated workloads

• Transition — Pilot the migration, deploy the target environment, migrate data and workloads, and rene

the solution

• Operation— Transition to production with proactive support, and education


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HP also offers:

• Red Hat Virtualization Planning Service — Efciently integrate Red Hat virtualization technologies suchas KVM. Manage virtual and physical resources with the same consistent processes.

• HP Installation and Startup for Linux— Encompasses all deployment activities necessary to get projects

up-and-running quickly.

• Cloud Consulting Services— Help determine an appropriate cloud strategy and implementation roadmap.

• Converged Infrastructure Services — Services to help design, plan, implement, and support next-

generation IT structures.

• Datacenter Transformation Services— Consolidate facilities to cut operations costs, boost energy ef-

ciency, and enhance utilization. Consolidate servers, storage, and networks to increase capacity, simplify

management, and improve market responsiveness.

• IT Consolidation Services— Take complexity and cost out of the technology environment.

• Operating System Services — Rely on HP experience and expertise spanning UNIX, Linux, Microsoft

Windows, and other platforms.

Specic HP capabilities include:

• Program management and training

• Turnkey migration solutions

• Application and database migration and porting

• The full support of HP Technology Services and HP Enterprise Services

TCO COMPARISONS —RISC/UNIX VS. RED HAT ENTERPRISE LINUXAND THE HP DL980 SERVER

compARison #1: iBm poweR 770 And iBm Aix

TABLe 3: compARed seRVeRs

SERVER OS DBMS NUMBER OFSERVERS

NUMBER OFSOCKETS / CORES

TOTALCORES

IBM Power 770 Power7

+ (3.5 GHz)

IBM-AIX Oracle 11g 1 8/48 48

HP DL980 G7 Intel Xeon

X7560 (2.26GHz)

Red Hat Enterprise Linux Oracle 11g 1 8/64 64


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TCO/ ROI summary:

• Overall savings of 42 percent over three years with HP ProLiant DL980 G7 and Red Hat Enterprise Linux

• Hardware acquisition cost savings of 73 percent

• Hardware and software support and maintenance cost savings of 41 percent

compARison #2: oRAcLe sun m9000

TABLe 5: compARed seRVeRs

SERVER OS DBMS NUMBER OFSERVERS

NUMBER OFSOCKETS / CORES

TOTALCORES

M9000 SPARC64 VI

(2.4 GHz)

Solaris Oracle 11g 2 16/48 128

HP DL980 G7 Intel Xeon

X7560 (2.26GHz)

Red Hat Enterprise Linux Oracle 1 1g 1 8/64 64

TABLe 6: THRee-yeAR Tco compARison in usd

TCO COMPARISON SUN HP / RED HAT DIFFERENCE PERCENT

Server Hardware $2,796,122 $112,092 $2,684,030 96.0%

Server software (OS & DB) $3,570,000 $1,146, 207 $2,423,793 67.9%

Hardware and software support

and maintenance

$3,755,085 $775,348 $2,999,737 79.9%

IT OVERHEAD COSTS

Systems administration $80,000 $36,371 $49,029 61.0%

Facilities (power, cooling, and oor space ) $470,022 $24,084 $445,938 94.9%

Implementation costs

(planning and delpoyment)

$0.00 $0.00 $0.00

Total IT costs $10,671,629 $2,069,102 $2,069,102 80.6%

TABLe 4: THRee-yeAR Tco compARison in usd

TCO COMPARISON IBM HP / RED HAT DIFFERENCE PERCENT

Server hardware $412,531 $112,092 $300,439 72.8%

Server software (OS & DB) $1,812,048 $1,146,207 $665,841 36.7%

Hardware and software support and

maintenance

$1,286,877 $775,348 $531,529 41.3%

IT overhead costs

Systems administration $43,620 $36,371 $12,249 28.1%

Facilities (power, cooling, and oor space ) $38,235 $24,084 $14,151 37.0%

Implementation costs

(planning and delpoyment)

$0.00 $0.00 $0.00

Total IT costs $3,593,311 $2,069,102 $1,524, 209 42.4%


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RED HAT SALES AND INQUIRIES

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www.latam.redhat.com

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TCO/ROI summary:

• Overall savings of 81 percent over three years with HP ProLiant DL980 G7 and Red Hat Enterprise Linux

• Hardware acquisition cost savings of 96 percent

• Hardware and software support and maintenance cost savings of 80 percent

RED HAT ENTERPRISE LINUX AND HP PROLIANTDL980 SERVERS — THE SMART ENTERPRISE CHOICE

As you evaluate your enterprise platform options, it is now possible to consider a shift to open standards,

and take advantage of the most available and resilient x86 combination platform—the HP DL980 server

running Red Hat Enterprise Linux. As the culmination of many years of collaborative effort between HP, Intel,

and Red Hat, this new solution provides the ability to scale, consolidate, and cluster applications on a lower-cost, high-performance server, congurable up to 64-cores.

Even if your RISC environment is only three to four years old, the HP DL980 server with Red Hat

Enterprise Linux delivers the features that make it an ideal platform for migrating legacy UNIX workloads to

make dramatic reductions in TCO with a fast ROI. Some of the key benets of a shift to this platform include;

• Integrated storage, networking, and server capabilities. Red Hat resource control and virtualization tech-

nologies allow you to create pools of standards-based, managed resources.

• Enterprise resource platform with up to 64 cores and two TB of memory that supports higher consolida-

tion densities and larger virtual workloads.

• Centralized management for simplifying operations and provisioning many legacy workloads on a small

number of servers.

• A 200% boost (compared with HP DL785 server) in availability increases application uptime, and offers

self-healing features in Red Hat Enterprise Linux.

• Processor architecture and operating system features that support applications requiring large globally

addressable memory and up to 64 cores of processing capacity.

• 16 PCI-e (x16, x8 and x4) slots for high performance I/O for accelerators, visualization, and high speed

communications, and support for excellent I/O performance in Red Hat Enterprise Linux.

Now, with the performance, scalability, and reliability of the HP DL980 server running Red Hat

Enterprise Linux, you can adopt the x86 platform to provide better TCO for your core enterprise applications.

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