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Copyright Lenovo 2015. All rights reserved. ibm.com/redbooks 1

Solution Guide: Flex System Solution for

Oracle RAC

Solution Reference Number: BDARACFX043

Contents

Solution Guide: Flex System Solution for Oracle RAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Business value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Solution overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Solution architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Hardware components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Usage scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Supported platforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Partial Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Related information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Bryan Reese

Ajay Dholakia

Thomas Parker

Check for Updates

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2 Solution Guide: Flex System Solution for Oracle RAC

Introduction

The Flex System Solution for Oracle RAC provides a robust database foundation for anycloud infrastructure or enterprise environment. The combination of reliable System x servers,

the highly scalable Flex System, and the high availability and scalability of Oracle RealApplication Clusters (RAC) provides a comprehensive solution for any database application.

The solution (see Figure 1) deploys Oracle RAC database instances on Flex System X6

family compute nodes with Intel Xeon E7 v2 processors. The IBM FlashSystem 840 is usedfor shared storage, and the solution uses the Flex System EN4023 10Gb Scalable Switch and

Flex System FC5022 16Gb SAN Scalable Switch for connectivity to storage and networkcommunication.

Figure 1 Overview of Flex System Solution for Oracle RAC

This paper provides the planning requirements, design considerations, and leading practicesfor implementing a Flex System-based Oracle RAC solution. It is intended for IT

professionals, technical architects, sales engineers, and consultants who participate inimplementing an Oracle RAC solution on Flex System.

The information that is provided here assumes that the reader is familiar with the Linux

operating system, Oracle databases, Oracle RAC technology, and the various hardware

products that are involved. Detailed documentation and training about RAC exists outside ofthis solution guide, which covers only what was tested for this configuration.

Application

ServersShared

Storage

Oracle Real Application Cluster

Node 1 Node 2

Users

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Solution Guide: Flex System Solution for Oracle RAC3

Business value

The Flex System Solution for Oracle RAC answers a common need among organizations byproviding a comprehensive, high-availability database solution for any application.

The resiliency of an IT organization's access to its critical information is one of the most

important considerations when planning to buy or upgrade equipment. All aspects of thedatabase, from the hardware it runs on to the software platform that provides and manages

the information, should be reliable, dependable, and include features that ensure auditabilityand accountability.

Beyond the need for consistent access to data, there are other important considerations,

including how quickly the data can be retrieved and the ease with which the database can bemaintained. To meet these needs, Lenovo is combining Oracle RAC technology and Flex

System elements, including the x480 X6 compute node.

Oracle RAC provides a resilient software solution for database access on multiple servers. Byusing this high-performance, high-availability software with the database, queries can be sentseamlessly to any number of back-end servers without any involvement from the client. Also,

if there is a server failure, all database instances in the Oracle RAC system automaticallyrecover by failover to another server, so the system can send the needed response to the

client from a server that is functioning as expected.

The Flex System x480 compute node has built-in hardware redundancy. This feature allowsmultiple system components to function together or as backups if there is a power loss or with

most configuration or hardware failures. This redundancy helps companies achieve extremeperformance levels that allow all connected users and applications to perform optimally.

Flex System is designed specifically to provide easy server management and consolidation,which allows for more systems in a single rack, and multiple hardware options provide criticalflexibility. These features allow clients to select appropriate options to optimize their system

for the applications that are being deployed. For example, you can deploy 16 Gb Fibre

Channel and 10 Gb Ethernet to operate together to form a single, cohesive, and optimizedsolution.

The Flex System Solution for Oracle RAC uses the Intel Xeon E7-4800 v2 family ofprocessors in the Flex System x480 compute nodes, which enable application performance

that is up to 100% faster than a previous generation, four-socket system. This speed reducesthe capital costs of initial deployment by requiring less space and fewer nodes to complete

the same tasks. The Flex System Solution for Oracle RAC reduces administrative costs andprovides software-optimized performance from Oracle to provide a comprehensive,

high-performance database solution.

Solution overviewThe Flex System Solution for Oracle RAC is a scalable, resilient, and high-performance

database solution. Load balancing, scaling, and optimized performance are supported byusing Oracle RAC features, including Clusterware, Automatic Storage Management (ASM),and Single Client Access Name (SCAN).

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The solution uses Oracle technologies that allow for redundancy and ease of management.

The Oracle Grid Infrastructure allows for traditional management of the Oracle RAC system todetermine which nodes run certain database tasks, and enables policy-based control andautomated migration of database resources for optimal qualities of service under heavy

loads. Starting with Oracle release 12c, a new multitenant feature also is supported. Thisfeature creates a container database with multiple databases within it that are separated from

other containers on the same Oracle RAC infrastructure while still providing for a seamlessclient experience.

Other key software differentiators in Oracles 12c release include the ability to have

heterogeneous servers with different processor or memory technology, which enablesfine-grained control in scaling the servers that host the database. Another differentiator is

Oracle Database Application Continuity, which allows for replays of database information afterrecoverable errors. If there is an error, this feature enables automatic corrections to a server

or client where Oracle software is running on both sides of the transaction.

Other key components of the solution's hardware architecture include Brocade Fibre Channel

and Ethernet fabrics, which enable centralized management and simple deployment of morechassis. This simplicity allows seamless deployment of extra nodes with minimal

configuration needed for each chassis. When combined with the management that isprovided through Oracles Grid Infrastructure, centralized chassis management allows anadministrator to automate and optimize workflows, which results in lower administrative

overhead and reduced total cost of ownership (TCO) for the solution as a whole.

To provide this scalable, high-performance solution, the tested implementation of the solution

uses 10 Gb Ethernet, 16 Gb Fibre Channel, and a variable number of X6 servers that arehoused within a Flex System chassis. For storage, it uses the IBM FlashSystem 840, anindustry-leading storage enclosure with high bandwidth and high input/output operations per

second (IOPS). The client can be any server or desktop that must access the data.

The core feature of the Flex System Solution for Oracle RAC is the flexibility of the system

elements that are involved. With storage that can total 2 - 48 TBs in a single unit, and memorythat can scale 3 - 12 TBs per node, it becomes relatively easy to meet the needs of eachspecific deployment, whether the consideration is cost, performance, or available storage.

This flexibility makes initial deployments cheaper and future expansion simpler, with nodowntime in the data center. The FlashSystem 840 can be expanded with an extra flash

storage module that can be sized at 1 TB, 2 TB, or 4 TB, or by adding a FlashSystem 840 thatcan be used to expand an existing data store or create one.

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Solution architecture

Figure 2shows the high-level architecture of the Flex System Solution for Oracle RAC.

Figure 2 High-level architecture of the Flex System Solution for Oracle RAC

Flexibility and scalability in design are the primary advantages of the Flex System X6

Compute Node product family. Each compute node is composed of two processors.Depending on the processor type that is installed, the X6 compute nodes can scale to fourprocessors or even eight processors. In our testing, we used the x480 X6 compute node; with

its E7-4800 v2 series processors, two x480 X6 can be connected to form a single four-socketserver.

For maximum scalability, the four x880 X6 compute nodes can be connected to form a single

eight-socket server, as shown in Figure 3 on page 6.

Database

Server 1Database

Server 2

Client Shared Storage

Fibre Channel

Switch

Ethernet network

Database request

Database

request is sent

to correct serverFibre Channel

high-throughput

interconnect used

for data store

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Figure 3 Four x880 Compute Nodes in an eight-socket complex

The deployment units for the Flex System Solution for Oracle RAC can be broken down intosmall compute units (at least two Flex System x6 compute nodes) or chassis (only one is

required). As business needs change, the deployment can be expanded with minimaloverhead thanks to the rapid deployment abilities of the X6 compute family and the Brocade

fabric-based networks. With this solution, it is easy to plug in a new chassis or a new computenode after which configuration can be done by using Oracle response files and operatingsystem deployment can be done with a tool, such as xCAT or Tivoli Provisioning Manager for

Operating System Deployment. If more compute power must be added to a compute nodethat is not yet scaled to its limit, no operating system setup is required. The network scales

with minimal user intervention. When a node is added, changes to the network can includezoning and the configuration of a VLAG for the new nodes. Adding a chassis requires

changing the EN4023 rbridge ID.

After the solution is scaled beyond one chassis, we suggest expanding the Fibre Channelnetwork with Flex System FC5022 16Gb SAN Scalable Switches that are designated as the

core switches with other switches connecting to them in Brocade's Access Gateway mode.This configuration keeps the points of administration to a minimum. Full-fabric mode issupported throughout the whole deployment, if wanted. The optimal configuration sometimes

depends on whether there is any shared infrastructure and the administrator's preference, asthere are no performance or scaling considerations with this decision. For the Ethernet

network, a core can be formed for the EN4023 Ethernet fabric switch, but at smaller scales,switches can be connected in a full mesh to ensure optimal bandwidth usage, with

connections leaving the switches as a single VLAG.

Multiple chassis can share FlashSystem 840 storage systems. Each FlashSystem 840 cancontain 2 - 48 TBs of storage with fully hot swappable flash storage modules, which enablesthe addition and configuration of more storage without bringing the system down. This

flexibility means that more logical unit numbers (LUNs) can be made available to theoperating system, the SCSI bus can be rescanned, and the Oracle ASM volume manager can

be used to create and configure more disk groups without any interruption of service.

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Because of redundancies and hot swap capabilities, more capacity can be added to the

database without requiring a full system maintenance window. This capability also applies tostorage, network, and compute capacity. Ideally, the largest possible single units arepurchased in all cases to enable this scaling. These units are the 4 TB flash storage modules

for the FlashSystem 840 and the x880 or x480 compute nodes.

Hardware components

In this section, we briefly describe the key features of the compute, network, and storagehardware components that are used in the solution.

Flex System Enterprise Chassis

The Flex Enterprise Chassis was developed to allow node-to-node traffic, which bypasses theneed for a Top of Rack Switch (TOR) and reduces up-front capital costs. Because Flex

System compute nodes support more memory per blade, and in turn, more VMs, you cansave on software licensing costs.

You also get increased agility because Flex System was designed for technology in

development today and going forward. You can upgrade in place, that is, without ripping outyour entire infrastructure. You can go from 1 Gb to 10 Gb to 40 Gb of internal bandwidth

within the same chassis, or mix solid-state drive (SSD) and hard disk drive (HDD) technology,as needed. You also can scale from two sockets to four sockets to eight sockets with the Flexx880 X6, which is the only eight-socket blade solution that is available today.

Flex System X6 Compute Nodes

The Flex System X6 Compute Node family, which is composed of the x880 X6, x480 X6, andx280 X6, are high-performance, scalable compute nodes that are designed to take on the

most demanding workloads. The performance, flexibility, and resiliency features enable theX6 to run mission-critical workloads, such as key business applications, database, analytics,

and large virtual machine deployments.

Each compute node contains two Intel Xeon E7 processors. The x880 X6 uses E7-8800 v2processors and supports joining two or four x880 compute nodes to form a single eight-socket

server with 192 DIMM slots. The x480 (see Figure 4 on page 8) that was used in testing thesolution uses E7-4800 v2 processors and supports joining two x480 compute nodes to form a

single four-socket server with 96 DIMM slots. The x280 has two E7-2800 v2 processors and48 DIMM slots but does not offer scaling.

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Figure 4 Flex System X6 Compute Node

Flex System EN4023 10 Gb Scalable Switch

The EN4023 scalable switch (see Figure 5) offers full Layer 3 support, including OSPF, BGP,and VRF-lite in an embedded switch. It also supports all industry-standard layer 2 features,

which allows for easy deployment in any environment. The switchs primary cost-savingattributes are the VCS Fabric features that enable scaling and ease of management for any

configuration, large or small.

Figure 5 Flex System EN4023 Brocade scalable Ethernet switch

IBM Flex System FC5022 16Gb SAN Scalable Switch

The Flex System FC5022 16 Gb SAN Scalable Switch is an embedded Fibre Channel switchwith 20 external ports (see Figure 6) that enable designs without a TOR switch. The large

number of ports also creates a unique opportunity for an embedded environment withself-contained configurations that were created only with TOR switches and fixedconfigurations. The FC5022 is Brocade Fabric Vision-capable and fully tested and supported

in upstream configurations.

Figure 6 Flex System FC5022 16Gb SAN Scalable switch

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IBM FlashSystem 840

The IBM FlashSystem 840 (see Figure 7) delivers high performance, efficiency, and reliabilityin a compact form factor. It scales 2 - 48 TBs of addressable storage and is usable in anydeployment, large or small. With a simple user interface that is similar to IBMs Storwize family

of products, the FlashSystem 840 speeds time-to-value and future administrative costs are

minimized.

Figure 7 IBM FlashSystem 840

Usage scenarios

In addition to infrastructure redundancy, Oracle RAC technology provides redundant software

mechanisms. If there is a full node failure or misconfiguration, a virtual IP address moves fromone node to another, which allows the database to continue operating seamlessly from theperspective of the user. This transition occurs when a heartbeat between the servers on their

dedicated networks ceases to be received as expected after which the failover logic isimplemented. For optimal, normal operation of hardware resources, all of the servers in the

cluster receive requests for their services that they manage.

In a typical usage scenario, an application server sends its request over the Ethernet network

(the Flex System x480 servers that run the database are connected to an EN4023high-speed 10 Gigabit Ethernet switch that is Brocade VCS Fabric-capable). When therequest arrives, it is processed in local memory, if possible. If the data is in storage instead of

the local memory that contains the buffer cache, the FC5022 Fibre Channel switch carries thetraffic to the FlashSystem 840 storage array. Figure 8 on page 10shows how these services

are distributed.

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Figure 8 Normal operation of the database

Figure 9shows what occurs if there is a failure.

Figure 9 Fail over operation of the database

s Oracle Net Services Client Access

Sales Database

Access Requestor

Internal Operations

Requestor

Sales Database

Instance

HR Database

Instance

Internal Operations

Database Instance

HR Database

Access Requestor

s Oracle Net Services Client Access

Sales Database

Access Requestor

Internal Operations

Requestor

Sales Database

Instance

HR Database

Instance

Internal Operations

Database Instance *

HR Database

Access Requestor

*Now included in Physical Server 1

without client knowledgePhysical Server 1

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Integration

This section describes some special deployment considerations for the Flex System Solutionfor Oracle RAC and includes recommendations for integrating systems management into an

existing IT environment.

Networking

This solution provides for a redundant and robust network for operation of the Oracle RACdatabase. There are individual, separate networks for storage and logically paired Ethernetswitches, which allows for the bonding of interfaces through VLAGs and operating

system-controlled interfaces. The separate networks are fully redundant, somisconfigurations or hardware-related failures can occur without a full loss of system

functionality.

When the solution is implemented, it is suggested that you isolate traffic by using VLANs anddeploy single HBA zoning on all switches. It is further suggested that you connect the EN4023Ethernet switches to each other to form a single VCS fabric unit and logical chassis, but leave

the FC5022 Fibre Channel switches unconnected as separate fabrics. For more informationabout Fibre Channel zoning best practices, see the Brocade white paper, Secure SAN Zoning

Best Practices, which is available at this website:

http://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-0.pdf

Systems management

It is recommended (but not required) that the system management node is kept separate from

the solution to manage the Integrated Management Module (IMM) and Chassis ManagementModule (CMM) and to provision the operating system for the nodes. If the solution is being

installed without any other IT infrastructure, you can manage the nodes as single units for the

operating system and manage the hardware through the CMM web interface that can controleach individual nodes IMM.

Supported platforms

Red Hat Enterprise Linux 6 update 5 was used in testing the solution. Other operating

systems can be used and should function as expected, but they were not validated.

Round Robin DNS should be configured and the network interface cards should all be

bonded and set to a static IP address in the operating system.
http://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-0.pdfhttp://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-0.pdfhttp://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-0.pdf

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Partial Bill of Materials

Table 1is a partial sample Bill of Materials that lists the primary components of the FlexSystem Solution for Oracle RAC.

Table 1 Partial sample Bill of Materials, Flex System Solution for Oracle RAC

Related information

For more information about the Flex System Solution for Oracle RAC and its components, seethe following resources:

Channel Bonding interfaces on Red Hat Enterprise Linux 6:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-networkscripts-interfaces-chan.html

Multipath configuration on Red Hat Enterprise Linux 6:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/DM_Multipath/

Oracle ASM configuration guide:

http://docs.oracle.com/database/121/OSTMG/toc.htm

Part number Description Quantity

Flex System Chassis (Lenovo)

8721HC1 IBM Flex System Enterprise Chassis Base Model 1

ESWD IBM Flex System EN4023 10Gb Scalable Switch 2

A2RQ IBM Flex System FC5022 24-port 16Gb ESB SAN Scalable Switch 2

x480 Compute Node (Lenovo)

7903AC2 Flex System Compute Node x480 X6 Base Model 4

A5QU Flex System x480 X6 Compute Node 4

A45S IBM Flex System FC5054 4-port 16Gb FC Adapter 4

A4K3 IBM Flex System CN4022 2-port 10Gb Converged Adapter 4

A3QM 16GB (1x16GB, 2Rx4, 1.35V) PC3L-12800 CL11 ECC DDR3

1600MHz LP RDIMM

72

A4EA Intel Xeon Processor E7-4880 v2 15C 2.5GHz 37.5MB Cache

1600MHz 130W

4

A4DQ Extra Intel Xeon Processor E7-4880 v2 15C 2.5GHz 37.5MB Cache

1600MHz 130W

4

FlashSystem 840 (IBM)

9843-AE1 IBM FlashSystem 840 1

AF11 4TB eMLC Flash Module 10

AF15 FC/FCoE Host Interface Card 2

AF19 16Gb FC 4 Port Host Optics 2
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-networkscripts-interfaces-chan.htmlhttps://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-networkscripts-interfaces-chan.htmlhttps://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/DM_Multipath/https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/DM_Multipath/http://docs.oracle.com/database/121/OSTMG/toc.htmhttp://docs.oracle.com/database/121/OSTMG/toc.htmhttps://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/DM_Multipath/https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-networkscripts-interfaces-chan.htmlhttps://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-networkscripts-interfaces-chan.html

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Oracle Net Services configuration guide:

http://docs.oracle.com/database/121/NETAG/toc.htm

Full documentation for Oracle Database and Grid Computing:

http://docs.oracle.com/database/121/nav/portal_11.htm

Fibre Channel zoning best practices:

http://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-00.pdf

Flex System X6 Compute Nodes Product Guide

http://www.redbooks.ibm.com/abstracts/tips1160.html?Open

Oracle RAC sizing guidance:

http://www.oracleracsig.org/pls/apex/RAC_SIG.download_my_file?p_file=1001042

Oracle Database Performance Tuning Guide:

http://docs.oracle.com/database/121/TGDBA/toc.htm

Oracle SCAN:

http://www.oracle.com/technetwork/products/clustering/overview/scan-129069.pdf
http://docs.oracle.com/database/121/NETAG/toc.htmhttp://docs.oracle.com/database/121/nav/portal_11.htmhttp://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-00.pdfhttp://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-00.pdfhttp://www.redbooks.ibm.com/abstracts/tips1160.html?Openhttp://www.oracleracsig.org/pls/apex/RAC_SIG.download_my_file?p_file=1001042http://docs.oracle.com/database/121/TGDBA/toc.htmhttp://www.oracle.com/technetwork/products/clustering/overview/scan-129069.pdfhttp://www.oracle.com/technetwork/products/clustering/overview/scan-129069.pdfhttp://docs.oracle.com/database/121/TGDBA/toc.htmhttp://www.oracleracsig.org/pls/apex/RAC_SIG.download_my_file?p_file=1001042http://www.redbooks.ibm.com/abstracts/tips1160.html?Openhttp://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-00.pdfhttp://docs.oracle.com/database/121/nav/portal_11.htmhttp://docs.oracle.com/database/121/NETAG/toc.htm

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Copyright Lenovo 2015. All rights reserved.

Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by Global Services

Administration (GSA) ADP Schedule Contract 15

Notices

Lenovo may not offer the products, services, or features discussed in this document in all countries. Consultyour local Lenovo representative for information on the products and services currently available in yourarea.Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovoproduct, program, or service may be used. Any functionally equivalent product, program, or service that doesnot infringe any Lenovo intellectual property right may be used instead. However, it is the user's responsibilityto evaluate and verify the operation of any other product, program, or service.

Lenovo may have patents or pending patent applications covering subject matter described in this document.The furnishing of this document does not give you any license to these patents. You can send licenseinquiries, in writing, to:

Lenovo (United States), Inc.1009 Think Place - Building OneMorrisville, NC 27560U.S.A.Attention: Lenovo Director of Licensing

LENOVO PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND, EITHEREXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OFNON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some

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This information could include technical inaccuracies or typographical errors. Changes are periodically madeto the information herein; these changes will be incorporated in new editions of the publication. Lenovo maymake improvements and/or changes in the product(s) and/or the program(s) described in this publication atany time without notice.

The products described in this document are not intended for use in implantation or other life supportapplications where malfunction may result in injury or death to persons. The information contained in thisdocument does not affect or change Lenovo product specifications or warranties. Nothing in this documentshall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or

third parties. All information contained in this document was obtained in specific environments and ispresented as an illustration. The result obtained in other operating environments may vary.

Lenovo may use or distribute any of the information you supply in any way it believes appropriate withoutincurring any obligation to you.

Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not inany manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of thematerials for this Lenovo product, and use of those Web sites is at your own risk.

Any performance data contained herein was determined in a controlled environment. Therefore, the resultobtained in other operating environments may vary significantly. Some measurements may have been madeon development-level systems and there is no guarantee that these measurements will be the same ongenerally available systems. Furthermore, some measurements may have been estimated throughextrapolation. Actual results may vary. Users of this document should verify the applicable data for their

specific environment.

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S l i G id Fl S S l i f O l RAC

This document REDP-5149-00 was created or updated on January 14, 2015.

Send us your comments in one of the following ways: Use the online Contact usreview Redbooks form found at:

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