Choosing IBM Flex System for Your Private Cloud Infrastructure

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1 Redpaper Srihari Angaluri Choosing IBM Flex System for Your Private Cloud Infrastructure Table of contents Introduction Private cloud requirements on page 2 IBM PureFlex System on page 3 IBM Flex System on page 5 Advantages of PureFlex over Flex System on page 7 Cloud reference architecture with Flex System on page 10 Compute node choices in the Flex System on page 15 Cloud management software on page 23 Conclusion on page 24 References on page 25 Introduction IBM Flex System is a new platform technology that was introduced for organizations that are deploying IT for emerging data center applications, such as cloud computing, Big Data, Analytics, Technical computing, and Smarter Planet. IBM Flex System combines advances in processor, memory, networking, storage, and management technologies such that they are integrated into a single, cohesive system. This system provides an efficient platform for addressing data center challenges for capacity, flexibility, scalability, reliability, and IT acquisition and maintenance costs. There are several solutions available in the marketplace today for people who want to create private cloud infrastructures. Starting from the infrastructure layer, some vendors are providing fully integrated solutions with preselected components for almost all layers in the cloud. Copyright IBM Corp All rights reserved. ibm.com/redbooks 1

2 For example, IBM provides the BladeCenter Foundation for Cloud 1, which is reference architecture for creating a private cloud infrastructure by using the IBM BladeCenter, Intel processor-based BladeCenter servers, disk storage for virtual image repositories, integrated networking with 10 Gbps Ethernet and Fibre Channel over Ethernet (FCoE) switches, and the IBM SmartCloud Entry software stack for virtualization and platform management. Although fully integrated solutions might address the needs of certain customers, the other end of the market segment is interested in creating their own private cloud infrastructures by integrating the piece parts. The IBM Flex System provides all of the components that are necessary for creating the cloud, including compute, networking, storage, and management software. In this paper, we describe how to integrate a custom private cloud infrastructure solution by using the IBM Flex System. This IBM Redpaper is intended for customers and IBM Business Partners who are creating custom private cloud infrastructures and looking for various hardware and software options that are available from IBM. This paper also provides a technical overview of the IBM Flex System components for cloud infrastructure architects and hardware integration specialists. Private cloud requirements In constructing a private cloud infrastructure, you must look at the full stack of requirements and address them individually. You also must ensure that all the individual layers of the stack are well-integrated to create a seamless cloud system. The different layers of a typical cloud environment are shown in Figure 1. A more fine-grained view of the cloud shows other layers. These layers include the platform virtualization layer that is used for storage and networking, the middle-ware application layer that sits between the virtual images, and the management layers. However, from a high level, Figure 1 shows the important layers that almost every cloud environment features. Service Management Management Layer Hardware Management Virtualization Management Web Portal Virtual Images Layer Operating Systems Linux Windows AIX Other Virtualization Layer - Hypervisors VMware KVM Xen Hyper-V VM Physical Infrastructure Compute Storage Networking Figure 1 Typical layers in a cloud infrastructure 1 See IBM BladeCenter Foundation for Cloud: Integration Guide, REDP-4773, available at this website: 2 Choosing IBM Flex System for Your Private Cloud Infrastructure

3 At the physical infrastructure layer, we have the compute nodes, servers, networking, and all the other necessary support hardware (for example, management appliances). This layer is the fundamental layer of the cloud and is where people who are creating private clouds must spend the most time to select the correct hardware components. This selection process is critical because the choices that are made at this layer drive the choices for the other layers farther up in the stack. For example, selecting x86 based servers versus POWER based servers drives the choices for the hypervisors and the virtualization management tools and affects the application choices. In addition, key characteristics of the cloud environment, such as the performance, scalability, upgradability, serviceability, and manageability, is determined by the physical infrastructure layer. The per-vm metrics, such as the number of virtual CPUs, amount of virtual memory, disk capacity, and network bandwidth, also are influenced by the choices for the hardware components at the physical infrastructure layer. Most often, the hardware choices also are driven by the layers that are above the Physical Infrastructure layer, as shown in Figure 1 on page 2. For instance, applications that require much compute capacity and memory, such as database servers, force you to choose a robust, high-end platform with multiple CPU sockets. Also, support is needed for large memory (for example, a four-socket server with 64 memory DIMMs). In 2012, IBM introduced a new hardware platform, IBM Flex System, which is a set of technologies that are designed to address many challenges. These challenges include IT complexity, growth, deployment, acquisition, and maintenance costs. The new platform also was designed to address the IT infrastructure needs of emerging markets, such as cloud computing, Business Analytics, Big Data, and Smarter Planet. IBM Flex System enables new integrated solutions that are optimized on the hardware platform to take advantage of the full system capabilities for performance, scalability, robustness, and Systems Management. IBM Flex System provides an efficient platform to customers for addressing some of these challenges. It is an ideal platform for organizations that are creating their own solutions, such as custom private cloud infrastructures. IBM PureFlex System IBM PureFlex System is a comprehensive infrastructure system that provides an expert integrated computing system. It combines the IBM Flex System components, such as servers, enterprise storage, networking, virtualization, and management, into a single structure. Its built-in expertise enables organizations to manage and flexibly deploy integrated patterns of virtual and physical resources through unified management. These systems are ideally suited for customers who want a system that delivers the simplicity of an integrated solution and can tune middleware and the runtime environment. IBM PureFlex System combines advanced IBM hardware and software with patterns of expertise into three optimized configurations that are simple to acquire and deploy so you realize fast time-to-value. PureFlex features the following advantages: Configurations that ease acquisition experience and match your needs Optimized to align with targeted workloads and environments Designed for cloud with SmartCloud Entry included on Standard and Enterprise versions Choosing IBM Flex System for Your Private Cloud Infrastructure 3

4 Choice of architecture, operating system, and virtualization engine Designed for simplicity with integrated, single-system management across physical and virtual resources Simplified ordering that accelerates deployment into your environments Ships as a single integrated entity directly to you Includes factory integration and lab services optimization The PureFlex System is available in one of the following configurations: IBM PureFlex System Express, which is designed for small and medium-sized businesses and is the most affordable entry point for PureFlex System. IBM PureFlex System Standard, which is optimized for application servers with supporting storage and networking, and is designed to support your key ISV solutions. IBM PureFlex System Enterprise, which is optimized for transactional and database systems. It has built-in redundancy for highly reliable and resilient operation to support your most critical workloads. The PureFlex System configuration features the following main hardware and software components: Preinstalled and configured IBM Flex System Enterprise Chassis Compute nodes with IBM POWER or Intel Xeon processors IBM Flex System Manager, preinstalled with management software and licenses for software activation IBM Storwize V7000 external storage unit All hardware components are preinstalled in an IBM PureFlex System 42U rack Choice of operating system: IBM AIX IBM i Microsoft Windows Red Hat Enterprise Linux SUSE Linux Enterprise Server Virtualization software: IBM VM KVM VMware vsphere Microsoft Hyper V SmartCloud Entry (see IBM SmartCloud Entry on page 23) Complete pre-integrated software and hardware On-site services included to get you up and running quickly For more information about the PureFlex System, see this website: More information also is available from the IBM Redbooks publication IBM PureFlex System and IBM Flex System Products and Technology, SG , which is available from this website: 4 Choosing IBM Flex System for Your Private Cloud Infrastructure

5 IBM Flex System Flex System Manager Compute nodes The Flex System features the following key components: Flex System Manager: The hardware and software management appliance. Flex Compute Nodes: The servers that are based on Intel and POWER processors. Flex Storage: The capabilities for integrating local and remote storage. Flex Networking: A broad array of integrated networking technologies. The following sections briefly describe each of these Flex System components. For more information, see the IBM Redbooks publication IBM PureFlex System and IBM Flex System Products and Technology, SG , which is available from this website: IBM Flex System Manager is designed to optimize the physical and virtual resources of the IBM Flex System infrastructure and simplify and automate repetitive tasks. It provides easy system set-up procedures by using wizards and built-in expertise. IBM Flex System Manager also provides consolidated monitoring for all of your resources, including compute, storage, networking, virtualization, and energy. IBM Flex System Manager provides core management functionality and automation. It is an ideal solution with which you can reduce administrative expense and focus your efforts on business innovation. A single user interface controls the following features: Intelligent automation Resource pooling Improved resource utilization Complete management integration Simplified setup The compute nodes are designed to take advantage of the full capabilities of IBM POWER7 and Intel Xeon processors. This configuration offers the performance that you need for your critical applications. With support for a range of hypervisors, operating systems, and virtualization environments, the compute nodes provide the foundation for the following applications: Virtualization solutions Database applications Infrastructure support Line of business applications Choosing IBM Flex System for Your Private Cloud Infrastructure 5

6 Storage The storage capabilities of IBM Flex System give you advanced functionality with storage nodes in your system, and take advantage of your existing storage infrastructure through advanced virtualization. IBM Flex System simplifies storage administration with a single user interface for all your storage. The management console is integrated with the comprehensive management system. You can use these management and storage capabilities to virtualize third-party storage with nondisruptive migration of your current storage infrastructure. You can also take advantage of intelligent tiering so you can balance performance and cost for your storage needs. The solution also supports local and remote replication, and snapshots for flexible business continuity and disaster recovery capabilities. Networking Chassis Infrastructure The range of available adapters and switches to support key network protocols allow you to configure IBM Flex System to fit in your infrastructure. However, you can do so without sacrificing being ready for the future. The networking resources in IBM Flex System are standards-based, flexible, and fully integrated into the system. This combination gives you no-compromise networking for your solution. Network resources are virtualized and managed by workload. These capabilities are automated and optimized to make your network more reliable and simpler to manage. IBM Flex Systems gives you the following key networking capabilities: Supports the networking infrastructure that you have today, including Ethernet, Fibre Channel, and InfiniBand Offers industry-leading performance with 1 Gb, 10 Gb, and 40 Gb Ethernet; 8 Gb and 16-Gb Fibre Channel; and FDR InfiniBand Provides pay-as-you-grow scalability so you can add ports and bandwidth when needed The IBM Flex System Enterprise Chassis is the foundation of the offering. It supports intelligent workload deployment and management for maximum business agility. The 14-node, 10 U chassis delivers high-performance connectivity for your integrated compute, storage, networking, and management resources. The chassis is designed to support multiple generations of technology, and offers independently scalable resource pools for higher utilization and lower cost per workload. The IBM Flex System Enterprise Chassis is shown in Figure 2 on page 7. 6 Choosing IBM Flex System for Your Private Cloud Infrastructure

7 Figure 2 IBM Flex System Enterprise Chassis Advantages of PureFlex over Flex System Although IBM PureFlex System is based on the Flex System building blocks, PureFlex provides the following advantages over Flex System: Infrastructure Solution PureFlex provides an infrastructure platform solution by combining the Flex System chassis elements with the other necessary components at the rack level, such as top-of-the-rack network or SAN switches, external storage enclosures, and power distribution. Factory Integration PureFlex is delivered as a fully integrated platform solution. When you order one of the PureFlex offerings (Express, Standard, or Enterprise), the system is fully assembled by IBM manufacturing. The system includes the hardware assembly, racking, and cabling, and is shipped as a single unit. However, Flex System is not delivered as a fully integrated system. When the Flex System and the respective parts, such as switches, storage, and power distribution units (PDUs) are ordered, these elements are not integrated by IBM manufacturing. The elements are shipped as stand-alone items to be integrated by the customer or an IBM Business Partner. Choosing IBM Flex System for Your Private Cloud Infrastructure 7

8 Flexibility PureFlex is offered as predefined configurations, which are pre-built bundles of hardware and software. However, within these configurations, there is much built-in flexibility for the various choices. For example, customers can add compute nodes or storage capacity that is based on their application needs in any of the configurations within the allowed limitations to keep the key aspects intact. PureFlex configurations can be customized but still benefiting from the integration and delivery principles. PureFlex also is designed so that a customer can start with any of the three offerings (Express, Standard, or Enterprise) and scale that environment to the next level (for example, Express to Standard, or Standard to Enterprise). Built-in expertise PureFlex incorporates the best practices of IBM in architecture, integration, test, and deployment to create a robust platform solution. The choices of the hardware components, such as compute nodes, network switches, storage, and management are influenced by various factors that include typical customer technical needs, application demands, and solution cost versus functionality trade-offs. Hence, PureFlex System is optimal for a broad set of applications and still allows sufficient leeway for customization and tuning for specific applications. Simplified configuration and ordering IBM configuration tools allow easy configuration of the PureFlex bundles. IBM trained sales people and IBM Business Partners can create PureFlex configurations by using either of the build-to-order configurations of IBM, x-config or e-config. The tools provide a simplified interface to build PureFlex configurations that start from the base offering building blocks and allow further customization according to the built-in rules to preserve the solution integrity. Depending on the specific sales channel that is used, you can order PureFlex through one of the ordering systems: AAS, XCC, or HVEC. Although Flex System also can be ordered through one of these channels, it is up to the sales person or IBM Business Partner to choose the options to configure. They make these choices by using the configurator tools to ensure that the solution is valid and is not missing any critical components. Deployment services PureFlex System bundles before the November 2012 announcement included lab services days for on-site integration at the customer site. Post the November 2012 announcement, this implementation service is optional, although customers or partners can include the services for an additional price. The advantage of lab services is that the IBM trained professionals ensure the deployment and integration of the PureFlex solution into the customer environment. The Flex System BTO does not include services by default. A custom services agreement should be negotiated with the lab services that based on the specific customer needs. A comparison of Flex System and PureFlex System is shown in Figure 3 on page 9. 8 Choosing IBM Flex System for Your Private Cloud Infrastructure

9 Flex System (elements of PureFlex) Chassis 14 half-wide bays for nodes Compute Nodes x86 and POWER Storage Node V7000 Expansion inside or outside chassis Management Node Optional Networking 10/40 GbE, FCoE, IB, 8/16 Gb FC Expansion PCIe Storage IBM PureFlex System Pre-configured, pre-integrated infrastructure systems with compute, storage, networking, physical and virtual management, and entry cloud management with integrated expertise. Starting Point Configurations: Express Infrastructure for small and midsize businesses Standard Infrastructure for cloud deployments and server consolidation Enterprise Infrastructure for largescale deployments; highly redundant for resilient operations (POWER & x86) Figure 3 Flex System and PureFlex Choosing IBM Flex System for Your Private Cloud Infrastructure 9

10 Cloud reference architecture with Flex System In this section, we describe sample configurations of a private cloud system that uses the Flex System components and the various hardware options that are available in Flex System. Sample configuration The rack-level diagram (without cabling) of a private cloud system that uses Flex System hardware is shown in Figure Storage Expansion Service Manager IBM Flex System Enterprise Chassis Compute Node Compute Node Compute Node 05 Compute Node Compute Node Compute Node Compute Node Compute Node Flex System Enterprise 01 Management Node Flex Compute Nodes 11 Supply Supply CMM2 I/O I/O I/O I/O CMM Supply Supply Supply s s Supply Supply CMM GbE Data Network Switch 1 GbE Management Network Switch Rack Distribution Units Storage Storage Flex System FC Gb SAN Scalable Switch 11 Flex System Manager Distribution Units Gbps Management Switch Flex System Fabric EN Gb Scalable Switch SAN Storage Gbps Data Switch Chassis Management Module (CMM) 25 Figure 4 Front and rear view of a sample cloud that uses IBM Flex System hardware components The configuration that is provided here is for reference only. The specific hardware choices are described at a high level to illustrate the different components that are available in the Flex System for building a custom cloud. The actual hardware choices, such as the number and type of compute nodes, type of processors, amount of physical RAM, disk storage capacity, and networking and SAN switches, are largely dependent upon various factors. These factors include the virtual machine (VM)-specific metrics, system performance requirements, scalability, redundancy, and environmental restrictions (power, cooling, space). Detailed requirements analysis and planning should be conducted to design the system and make the component selections that meet the requirements. The example system that is shown in Figure 4 consists of a single Flex System Enterprise Chassis that is populated with compute nodes, redundant scalable chassis switch modules for Ethernet and SAN, and chassis management modules. The rack also includes a disk storage system with an entry storage controller and an expansion module. In addition, the rack consists of top-of-rack Ethernet switches for management and data networks. 10 Choosing IBM Flex System for Your Private Cloud Infrastructure

11 Networking architecture Often in a cloud environment, there are multiple network fabric types for various functions. Figure 5 shows these different fabric types and their purpose. From a virtual machine standpoint, there are three types of fabric: service management, storage access, and user/data. User Access/Data Network 10 Gbps Ethernet Virtual Machine 10 Gbps Ethernet Service Management Network 1 Gbps (iscsi) 10 Gbps (iscsi/fcoe) 8/16 Gbps Fibre Channel Storage Network Figure 5 Network fabric types for private cloud These fabric types are described in the following subsections. Service management network This network fabric is used for managing the physical and virtual resources. This network fabric often is physically isolated from the other fabrics for better isolation, security, and reliability of the management fabric. This same fabric is used for in-band and out-of-band management, although some customers prefer to isolate the in-band management from out-of-band. The in-band fabric is used for managing the operating systems and hypervisors. For example, communicating with the VMware ESXi server from the management node for deploying virtual images on the compute node. At the same time, the same fabric is used for monitoring the operating system resources in-band by using platform agents, for example, IBM Systems Director agent. Physical hardware resources, such as the compute nodes, network switches, and storage controllers, are managed via the out-of-band network fabric. For example, managing the Intel x86 compute nodes by using their Integrated Management Module (IMM) interface via the Flex Chassis Management Module (CMM) is done via the out-of-band network. The service management network fabric often is 1 Gbps Ethernet because of the low-bandwidth service traffic. Choosing IBM Flex System for Your Private Cloud Infrastructure 11

12 User access/data network This fabric is used for communication from the client network to the virtual machines. This fabric also is used for data access to and from the VMs. This fabric is also used for remote access of the VMs. For example, if the VM is running a desktop environment, this access fabric is used for remote login to the desktop. This fabric often is 10 Gbps Ethernet. Optionally, it can be 1 Gbps Ethernet if the fabric is not to be used for heavy traffic. The compute nodes should have the appropriate network interface cards to support the data fabric. The compute node of Flex System (for example, Intel x86 based x240 server) should have the embedded on-board 10-Gbps daughter card or a separate PCIe adapter installed. In addition, the Flex System chassis should have 10 GbE switches that are installed to support the 10-Gbps network to the nodes. Storage network This fabric is used for providing access to the attached disk storage, which often is used in a private cloud environment for storing virtual image templates library. It also provides storage for the VM file system data storage for applications that run inside the VMs. An entry-level or mid-range disk storage system, such as the IBM DS3000, DS5000, or IBM Storwize V7000 series storage controllers, are attached in a storage area network (SAN) type configuration as the storage solutions for small-scale private cloud environments. For larger-sized clouds that require storage for large volumes of data (hundreds of thousands of VMs or mission-critical environments), a high-end storage solution such as the IBM XiV can be used. 12 Choosing IBM Flex System for Your Private Cloud Infrastructure

13 Supply Supply Supply Supply I/O I/O I/O Supply s s Supply Supply I/O CMM2 CMM CMM1 Figure 6 shows how the different types of network connections are made in the sample cloud configuration To customer data network To customer management network 10 Gbps for data network Gbps SAS connections for storage expansion Gbps for management network /16 Gbps Fibre channel for storage network Figure 6 Network connections for sample cloud configuration Depending upon the performance, scalability, protocol support, administration preferences, and cost considerations, various SAN interfaces can be used. These interfaces include the traditional Fibre Channel (8 Gbps or 16 Gbps speeds), Serial Attached SCSI (SAS) (6 Gbps speed), iscsi (1 Gbps or 10 Gbps speeds), or Fibre Channel over Ethernet (FCoE) (10 Gbps speed). The different Flex System component choices that are available for building a private cloud system are summarized in Table 1 on page 14. Choosing IBM Flex System for Your Private Cloud Infrastructure 13

14 Table 1 Components of the private cloud configuration Description Part number Feature codes a Compute nodes IBM Flex System x240 Compute Node Machine type 8787 IBM Flex System x220 Compute Node Machine type 7906 IBM Flex System x440 Compute Node Machine type 7917 Network adapters for compute nodes (management and data fabrics) EN port 1 Gb Ethernet Adapter 49Y EN port 10 Gb Ethernet Adapter 90Y3466 None EN port 10 Gb Ethernet Adapter None 1762 CN Gb Virtual Fabric Adapter 90Y3554 None Fibre Channel adapters for compute nodes (storage access) FC port 8 Gb FC Adapter 69Y FC port 8 Gb FC Adapter 95Y2375 None FC port 16 Gb FC Adapter 88Y6370 None Network Switch Modules IBM Flex System Fabric EN Gb Scalable Switch 49Y4270 A0TB / 3593 IBM Flex System EN Gb Ethernet Pass-thru 88Y6043 A1QV / 3700 IBM Flex System EN Gb Ethernet Scalable Switch 49Y4294 A0TF / 3598 SAN Switch Modules IBM Flex System FC Gb SAN Scalable Switch 88Y6374 A1EH / 3770 IBM Flex System FC port 16 Gb ESB SAN Scalable Switch 90Y9356 A1EJ / 3771 IBM Flex System FC Gb SAN Switch 69Y1930 A0TD / 3595 IBM Flex System FC Gb SAN Pass-thru 69Y1934 A0TJ / 3591 a. The first feature code that is listed is for configurations that are ordered through System x sales channels. The second feature code is for configurations that are ordered through the IBM Systems channel. 14 Choosing IBM Flex System for Your Private Cloud Infrastructure

15 Compute node choices in the Flex System In the following sections, we describe the Intel processor-based compute node choices that are available in the Flex System. IBM Flex System x240 Compute Node The IBM Flex System x240 Compute Node is a high-performance server that offers outstanding performance for virtualization with new levels of CPU performance and memory capacity, and flexible configuration options. The x240 Compute Node is an efficient server that is designed to run a range of workloads. It is armed with advanced management capabilities that allow you to manage your physical and virtual IT resources from a single-pane of glass. The x240 Compute Node is shown in Figure 7. Figure 7 The IBM Flex System x240 Compute Node Scalability and performance The x240 offers the following features to boost performance, improve scalability, and reduce costs: The Intel Xeon Processor E product family improves productivity by offering superior system performance with up to eight core processors and up to 3.3 GHz core speeds. Also, depending on the CPU s number of cores, up to 20 MB of L3 cache, and QPI interconnect links of up to 8 GT/s. The Intel Xeon Processor E provides up to 80% performance boost over the previous generation, the Intel Xeon Processor 5600 (Westmere EP). Up to two processors, 16 cores, and 32 threads maximize the concurrent execution of multi-threaded applications. Intelligent and adaptive system performance with Intel Turbo Boost Technology 2.0 allows CPU cores to run at maximum speeds during peak workloads by temporarily exceeding processor thermal design power (TDP). Intel Hyper-Threading Technology boosts performance for multi-threaded applications by enabling simultaneous multi-threading within each processor core, up to two threads per core. Intel Virtualization Technology integrates hardware-level virtualization hooks that allow operating system vendors to better use the hardware for virtualization workloads. Choosing IBM Flex System for Your Private Cloud Infrastructure 15

16 Intel Advanced Vector Extensions (AVT) significantly improve floating point performance for compute-intensive technical and scientific applications that are compared with Intel Xeon 5600 series processors. Up to 24 DDR3 ECC memory Registered DIMMs (RDIMMs) provide speeds up to 1600 MHz and a memory capacity of up to 384 GB. Load-reduced DIMMs (LRDIMMs) are supported by a maximum capacity of 768 GB. The theoretical maximum memory bandwidth of the Intel Xeon processor E5 family is 51.6 GBps, which is 60% more than in the previous generation of Intel Xeon processors. The use of solid-state drives (SSDs) instead of or along with traditional spinning drives (HDDs) can significantly improve I/O performance. An SSD can support up to 100 times more I/O operations per second (IOPS) than a typical HDD. Up to 16 virtual I/O ports per compute node with integrated 10 Gb Ethernet ports are available, which offers the choice of Ethernet, Fibre Channel, iscsi, or FCoE connectivity. The x240 offers PCI Express 3.0 I/O expansion capabilities that improve the theoretical maximum bandwidth by 60% (8 GT/s per link), compared with the previous generation of PCI Express 2.0. With Intel Integrated I/O Technology, the PCI Express 3.0 controller is integrated into the Intel Xeon processor E5 family. This integration helps to dramatically reduce I/O latency and increase overall system performance. Support for high-bandwidth I/O adapters is available, up to two in each x240 Compute Node. Support for 10 Gb Ethernet, 16 Gb Fibre Channel, and FDR InfiniBand also is available. The components on the front of the x240 are shown in Figure 8. Two 2.5 HS drive bays Light path diagnostics panel USB port Console breakout cable port LED panel Figure 8 Front view of the IBM Flex System x240 Compute Node 16 Choosing IBM Flex System for Your Private Cloud Infrastructure

17 The internal components of the x240 are shown in Figure 9. Hot-swap drive bay backplane Processor 2 and 12 memory DIMMs I/O connector 1 Fabric Connector Light path diagnostics Processor 1 and 12 memory DIMMs I/O connector 2 Connector for Expansion Nodes Figure 9 Internal view of the x240 Embedded 10 Gb Virtual Fabric Adapter Some models of the x240 include an embedded 10 Gb Virtual Fabric Adapter (VFA, also known as LAN on Motherboard or LOM) that is built into the system board. Each x240 model that includes the embedded 10 Gb VFA also has the Compute Node Fabric Connector that is installed in I/O connector 1 (and physically screwed onto the system board) to provide connectivity to the Enterprise Chassis midplane. Figure 3 on page 9 shows the location of the Fabric Connector. The Fabric Connector enables port 1 on the embedded 10 Gb VFA to be routed to I/O module bay 1 and port 2 to be routed to I/O module bay 2. The Fabric Connector can be unscrewed and removed to allow the installation of an I/O adapter on I/O connector 1. The embedded 10 Gb VFA is based on the Emulex BladeEngine 3 (BE3), which is a single-chip, dual-port 10 Gigabit Ethernet (10 GbE) Ethernet Controller. The embedded 10 Gb VFA includes the following features: PCI-Express Gen2 x8 host bus interface Supports multiple virtual NIC (vnic) functions TCP/IP Offload Engine (TOE enabled) SRIOV capable RDMA over TCP/IP capable iscsi and FCoE upgrade offering via IBM Features on Demand (part number 90Y9310). Choosing IBM Flex System for Your Private Cloud Infrastructure 17

18 Network adapters The network adapters that the x240 supports are listed in Table 2. Table 2 Network adapters that are supported in the x240 Part number Feature code Description Number of ports Maximum supported a 10 Gb Ethernet 90Y3554 A1R1 IBM Flex System CN Gb Virtual Fabric Adapter Y3558 A1R0 IBM Flex System CN4054 Virtual Fabric Adapter: Software upgrade Feature on Demand to provide FCoE and iscsi support One license is required per adapter License 2 90Y3466 A1QY IBM Flex System EN port 10-Gb Ethernet Adapter Gb Ethernet 49Y7900 A10Y IBM Flex System EN port 1-Gb Ethernet Adapter 4 2 InfiniBand 90Y3454 A1QZ IBM Flex System IB port FDR InfiniBand Adapter 2 2 a. For x2x models with the Embedded 10-Gb Virtual Fabric Adapter standard, the Compute Node Fabric Connector occupies the same space as an I/O adapter in I/O slot 1. Because of this configuration, you must remove the Fabric Connector if you want to install an adapter in I/O slot 1. For more information about the x240, including a list of available models, see the IBM Redbooks Product Guide at this website: IBM Flex System x440 Compute Node A building block for the IBM PureFlex System family, the IBM Flex System x440 Compute Node is a four-socket Intel Xeon processor-based server that is optimized for high-end virtualization, mainstream database deployments, and memory-intensive, high-performance environments. It is price-performance that is optimized with a wide range of processors, memory, and I/O options to help you match system capabilities and cost to workloads without compromise. With a dense design, the Flex System x440 Compute Node can help reduce floor space that is used and lower data center power and cooling costs. 18 Choosing IBM Flex System for Your Private Cloud Infrastructure

19 Figure 10 shows the front of the compute node, including the location of the controls, LEDs, and connectors. The light path diagnostic panel is on the upper edge of the front panel bezel, which is in the same place as the x240. Two 2.5 HS drive bays Light path diagnostics panel USB port Console breakout cable port LED panel Figure 10 The IBM Flex System x440 Compute Node Scalability and performance The x440 offers the following features to boost performance, improve scalability, and reduce costs: The Intel Xeon processor E product family improves productivity by offering superior system performance with eight core processors and up to 2.9 GHz core speeds, up to 20 MB of L3 cache, and up to two 8 GTps QPI interconnect links. Up to 4 processors, 32 cores, and 64 threads maximize the concurrent execution of multithreaded applications. Intelligent and adaptive system performance with Intel Turbo Boost Technology 2.0 allows processor cores to run at maximum speeds during peak workloads by temporarily exceeding processor TDP. Intel Hyper-Threading Technology boosts performance for multithreaded applications by enabling simultaneous multithreading within each processor core, up to two threads per core. Intel Virtualization Technology integrates hardware-level virtualization hooks that allow operating system vendors to better use the hardware for virtualization workloads. Intel Advanced Vector Extensions (AVX) improve floating-point performance for compute-intensive technical and scientific applications that are compared to Intel Xeon 5600 series processors. Up to 48 DDR3 ECC memory RDIMMs provide speeds up to 1600 MHz and a memory capacity of up to 768 GB. LRDIMMs are supported by a maximum capacity of 1.5 TB of memory. The use of SSDs instead of or along with traditional HDDs can significantly improve I/O performance. An SSD can support up to 100 times more IOPS than a typical HDD. Up to 32 virtual I/O ports per compute node with integrated 10 Gb Ethernet ports, which offers the choice of Ethernet, Fibre Channel, iscsi, or FCoE connectivity. With models without integrated 10 Gb ports, you can have up to 64 virtual I/O ports by installing four CN Gb Virtual Fabric Adapters. The x440 offers PCI Express 3.0 I/O expansion capabilities that improve the theoretical maximum bandwidth by 60% (8 GTps per link), compared with the previous generation of PCI Express 2.0. Choosing IBM Flex System for Your Private Cloud Infrastructure 19

20 With Intel Integrated I/O Technology, the PCI Express 3.0 controller is integrated into the Intel Xeon processor E5 family. This configuration reduces I/O latency and increases overall system performance. Support for high-bandwidth I/O adapters, up to four in each x440 Compute Node. Support for 10 Gb Ethernet, 16 Gb Fibre Channel, and FDR InfiniBand is included. The components on the system board of the x440 are shown in Figure 11. Each processor has 12 local memory DIMMs 3 1 I/O adapters: 1 (top) to 4 (bottom) Hot-swap drive bays 4 2 Light path diagnostics USB ports Figure 11 Layout of the IBM Flex System x440 Compute Node system board The x440 supports the same network adapters as the x240, as listed in Network adapters on page 18. Some models of the x440 also include two embedded, dual-port 10 Gb Ethernet controllers, as described in Embedded 10 Gb Virtual Fabric Adapter on page 17. For more information about the x440, including a list of available models, see the IBM Redbooks Product Guide at this website: 20 Choosing IBM Flex System for Your Private Cloud Infrastructure