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Integrated hypervisor virtualization technologies in HP ... Document Transcript

  • 1. Integrated hypervisor virtualization technologies in HP BladeSystem ProLiant server blades and ProLiant servers technology brief Abstract.............................................................................................................................................. 2 Virtualization technology ...................................................................................................................... 2 HP integrated solution .......................................................................................................................... 3 Flash media..................................................................................................................................... 3 VMware ESXi .................................................................................................................................. 3 Citrix XenServer ............................................................................................................................... 4 Microsoft Hyper-V Server .................................................................................................................. 6 Summary ............................................................................................................................................ 6 For more information............................................................................................................................ 7 Call to action ...................................................................................................................................... 7
  • 2. Abstract The enterprise has quickly adopted virtualization, which has stimulated development of new methods for deploying the hypervisor (the virtualization layer). HP ProLiant iVirtualization integrates third-party hypervisors onto ProLiant platforms, allowing customers to quickly set up and manage virtual machines. ProLiant iVirtualization incorporates familiar ProLiant server management tools so that system administrators can manage any of the available hypervisor versions using HP Systems Insight Manager (HP SIM). The first implementations of ProLiant iVirtualization are available with VMware ESXi and Citrix XenServer. HP is also working with Microsoft to integrate Hyper-V Server in the same manner once it is released. Virtualization technology Virtual machine software transforms a single physical server into multiple virtual machines (VMs). Each VM presents a set of virtual hardware to a wide variety of commercially available Microsoft® Windows® and Linux® OSs. The OS running within a VM is referred to as a guest OS and is fully abstracted from the physical server hardware as illustrated in Figure 1. The abstraction layer is referred to as a virtualization layer, a hypervisor, a virtual machine monitor, or a virtual machine manager. 1 On a single physical platform, the software layer can create multiple virtual machines, each with its own virtual drives, virtual network interface controllers (NICs), virtual host-bus adapters (HBAs), virtual processors, and so on. Virtualization allows more complete hardware utilization while maintaining OS and application isolation in separate virtual machine instances. In turn, this isolation prevents problematic software from adversely affecting software running in other VMs. Figure 1. Diagram of virtual machine layers The benefit of abstracting the OS from the physical hardware and presenting a common VM is that the OS and its applications can be seamlessly moved between physical servers if both servers are virtualized. More information about virtual machine technology is available in the technology brief entitled “Server virtualization technologies for x86-based HP BladeSystem and HP ProLiant servers” at http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01067846/c01067846.pdf. 1 Hypervisor often refers to a layer that resides directly on server hardware, but terms are not used consistently across the industry. 2
  • 3. ProLiant iVirtualization is the integration of virtual machine technology into the ProLiant platform. HP Integrated Lights-Out (iLO) and HP Insight Control provide full-featured hardware management. ProLiant Virtual Console (PVC), which is available initially with HP integrated Citrix XenServer configurations, allows IT administrators to manage virtualized servers at the local console and also from remote locations using iLO Remote Graphics Console. HP integrated solution The abstraction between the physical server and OS hides unique ProLiant features and impedes full platform management. HP technologies affected by this phenomenon are iLO Advanced Pack, OEM versions of Microsoft Windows Server products, Remote Graphics Software (RGS) for virtual desktop applications (VDI), and HP SIM software. Therefore, HP developed an integration solution that exposes ProLiant features in a virtualized environment. This solution models the virtual platform as an extension of the physical platform, allowing ProLiant customers to easily deploy and manage a virtual server the same way they deploy and manage a physical server. The integrated hypervisor is shipped on a flash memory device such as a USB key. Customers can power on a server with the USB key and immediately begin configuring the virtualized environment. Flash media The flash media is a USB 2.0 boot device that resides inside the server chassis on the motherboard. HP has over three million servers in the market today that support the internal USB connector and are therefore ready for adding integrated hypervisor. Since the USB key resides inside the server and is not easily accessible to users, the ROM initial program load (IPL) is configured to scan the external USB ports for bootable images before attempting to boot from the internal USB port. This allows system administrators to recover from an internal USB device failure by connecting a bootable USB device to an external USB port. The first implementations of VMware and Citrix XenServer are available to be deployed as integrated hypervisors within ProLiant servers. The HP images of VMware and Citrix integrated XenServer Express Edition ship on a USB 2.0 key that is preinstalled in the internal USB port of ProLiant servers or BladeSystem ProLiant server blades. HP is beta testing Microsoft Hyper-V Server and expects to offer an integrated version of this hypervisor in late 2009. VMware ESXi HP has worked with VMware to provide a solution that is easier to manage than a standard configuration. VMware ESXi Server is a new thin architecture that removes the traditional console OS to reduce both the size of the hypervisor (from approximately 2.3 GB to only 32 MB) and the number of updates required for eliminating security vulnerabilities. The VMware ESXi architecture also eliminates the use of Simple Network Management Protocol (SNMP) agents (MIBs) for management. Removing the SNMP agents is advantageous for multiple reasons: • SNMP/MIB is a less robust data model for server management. • It is more difficult to build in security with the SNMP/MIB model. • SNMP/MIB must be modified for each vendor’s equipment. The VMware ESXi hypervisor is shipped on a USB key pre-installed in the internal USB port of ProLiant servers and BladeSystem ProLiant server blades. These servers boot directly from the USB key, so they are immediately ready to run ESXi. A menu-driven interface simplifies ESXi Server host configuration and setup. This revolutionary way of distributing virtualization technology removes time-consuming installation steps, simplifies host configuration, and ensures system reliability through active ProLiant management. 3
  • 4. Implementing VMware ESXi integrated hypervisor enables active hardware management. HP enhanced HP SIM and Insight Control Virtual Machine Management Pack to integrate with Web-based Enterprise Management (WBEM) providers. WBEM providers are a method of acquiring management data that relies on the industry-standard and widely accepted Common Information Model (CIM). The WBEM providers in HP SIM are pre-installed along with VMware ESXi on the USB key. They proactively provide data for monitoring server hardware and supplying the most up-to-date server state information possible. Implementing VMware ESXi integrated hypervisor also enables redundant images. The USB key is partitioned with redundant images to enable a robust upgrade and recovery process if one of the images becomes corrupted. The HP SIM systems page provides an overview of the managed node. The systems page summary includes IP and DNS information, links to additional management tools such as property pages, and Web-based Enterprise Management events list (Figure 2). Figure 2. HP SIM systems page for an ESXi host server Citrix XenServer Citrix XenServer v 4.1 HP Select Edition is a virtualization solution designed for efficient support of Windows and Linux virtual machines (Figure 3). It supports an unlimited number of virtual machines with no memory restrictions. By integrating Citrix XenServer into ProLiant platforms, HP created an HP ProLiant Virtual Console that provides management capabilities unique to HP. 4
  • 5. Figure 3. Diagram depicting HP Select Edition integrated with ProLiant server HP PVC was designed for new users of virtualization technology. It provides a simple graphical user interface (GUI) for managing single-server virtual machines, without the need for a separate management server or even a network. Using PVC, administrators can create and manage local virtual machines using the server keyboard/video/mouse (KVM). PVC also provides a mechanism to access and control the HP virtual KVM, which allows simultaneous display of up to nine guest consoles on the local system console. Twelve workspaces are provided. The limiting factor for the number of workspaces is the twelve function keys on the keyboard. HP PVC offers several options: • Wizard-based setup that guides IT administrators through the process of creating and configuring the host server and virtual machines • GUI that provides ongoing virtual machine monitoring and virtual machine management • Multi-screen view that allows a four-way view of the first four virtual machine consoles (Figure 4) or a thumbnail view of nine virtual machine consoles at once • Performance monitoring to track system-level resources and resources being used by each virtual machine • Optional HP iLO 2 Advanced Pack (sold separately) to enable remote access to the physical host server console and virtual machine consoles so administrators can deploy guest operating systems remotely to the virtual machines 5
  • 6. Figure 4. Multi-screen view of virtual machine consoles The Citrix XenServer v 4.1 HP Select Edition image comes pre-installed on a USB key that customers can use in a newly purchased server or in an existing ProLiant server that supports iVirtualization. After booting the server, XenServer and HP SIM agents are automatically loaded into memory. More information about HP integrated Citrix XenServer is available in the white paper entitled “HP integrated Citrix XenServer for HP ProLiant servers” at http://h71028.www7.hp.com/ERC/downloads/4AA1-9074ENW.pdf?jumpid=reg_R1002_USEN. Microsoft Hyper-V Server To give customers a wider choice of integrated solutions, HP and Microsoft are working together to integrate Hyper-V Server after it is released. An integrated version of Microsoft Hyper-V Server virtualization software will reside in flash media and ship inside ProLiant servers and BladeSystem ProLiant server blades. Summary HP provides a unique, integrated hypervisor solution that treats virtualization as an extension of the physical platform and preserves HP management and OEM operating system software capabilities. By exposing ProLiant features, this solution enables HP platform management tools, such as HP SIM and iLO, on ProLiant servers and BladeSystem ProLiant server blades. 6
  • 7. For more information For additional information, refer to the resources listed below. Resource description Web address HP ProLiant iVirtualization http://h71028.www7.hp.com/enterprise/cache/586174-0-0-0- 121.html HP integrated VMware ESX 3i http://h18004.www1.hp.com/products/servers/software/vmware- esx3i/index.html HP integrated Citrix XenServer http://h18004.www1.hp.com/products/servers/software/citrix/ “Server virtualization technologies for http://h20000.www2.hp.com/bc/docs/support/SupportManual/c x86-based HP BladeSystem and HP 01067846/c01067846.pdf ProLiant servers” technology brief “HP integrated Citrix XenServer for HP http://h71028.www7.hp.com/ERC/downloads/4AA1- ProLiant servers” white paper 9074ENW.pdf?jumpid=reg_R1002_USEN Call to action Send comments about this paper to TechCom@HP.com. © 2008 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Linux is a registered trademark of Linus Torvalds. TC080710TB, July 2008 7