Citrix Systems Server 6.2.0 Manuale Utente

Citrix XenServer ® 6.2.0 Virtual Machine User's GuidePublished Tuesday, 25 June 20131.0 Edition

3be sure to follow the appropriate preparation procedure for the VM (see Section 9.9, “Preparing for Cloning aWindows VM Using VSS” for Windows and Se

4Warning:Running a VM without installing the XenServer Tools is not a supported configuration.

5Chapter 3. Supported Guests and AllocatingResourcesThis chapter describes how to allocate resources to your VMs, and the supported guest operating sy

6Operating System MinimumRAMMaximumRAMMinimum Disk SpaceWindows XP SP3 (32-bit) 256MB 4GB 8GB (16GB or morerecommended)CentOS 4.5, 4.6, 4.7, 4.8 (3

7Operating System MinimumRAMMaximumRAMMinimum Disk SpaceOracle Enterprise Linux 5.0, 5.1, 5.2, 5.3,5.4, 5.5, 5.6, 5.7 (64-bit)512MB 128GB 8GBOracle En

8Operating SystemUbuntu Maverick Meerkat 10.10 (64-bit)Warning:Experimental guest operating systems have received limited testing, may not be presenti

93.4.1. VM Block DevicesIn the para-virtualized (PV) Linux case, block devices are passed through as PV devices. XenServer does notatt

10Chapter 4. Creating Windows VMsWarning:Running a VM without installing the XenServer Tools is not a supported configuration. Formore information, se

11Template Name DescriptionWindows Server 2003 (32-bit) Used to install Windows Server 2003 SP2 (32-bit). The Server,Enterprise, Data Centre,

12To copy BIOS strings using the CLI, see Section 9.8, “Installing a VM from Reseller Option Kit(BIOS-locked) Media”3. Enter a name and an optional de

Citrix XenServer ® 6.2.0 Virtual Machine User's GuideCopyright © 2013 Citrix Systems. Inc. All Rights Reserved.Version: 6.2.0Citrix, Inc.851 West

13Windows Imaging Component (see your vendor documentation for details) before installingXenServer Tools.To install XenServer Tools:a. On the Resource

14Chapter 5. Creating Linux VMsThis chapter discusses how to create Linux VMs, either by installing them or cloning them. This chapter alsocontain

15The supported Linux distributions are:Distribution VendorInstallfrom CDVendor Installfrom networkrepositoryNotesDebian Squeeze 6.0 (32-/64-bit) X

165.1. Creating a Linux VM by Installing from an Internet RepositoryThis section shows the xe CLI procedure for creating a Linux VM, using a Debian Sq

17xe vm-cd-add vm=<vm_name> cd-name="<host_cd_drive_name_label>" device=36. Get the UUID of the VBD corresponding to the new vir

18The network repository must be accessible from the control domain of the XenServer host, normally using themanagement interface. The URL must point

193. On the command line, use vm-param-set to set the PV-args parameter to make use of a Kickstart filexe vm-param-set uuid=<vm_uuid> PV-args=&q

205.6. Additional Installation Notes for Linux DistributionsThis section describes additional, vendor-specific configuration information that you shou

21Linux Distribution Installation NotesOracle Enterprise Linux 6.0, 6.1, 6.2 (32-/64-bit) None.Debian Squeeze 6.0 (32-/64-bit) When a private mirror

22different MAC address. As a result, when the new VM is started for the first time, the network does recognizethe new VM and does not come up automat

iiiContents1. About this Document ... 11.1. Overview ...

23Chapter 6. VM Migration with XenMotionand Storage XenMotionThis chapter discusses migrating running VMs using XenMotion and Storage XenMotion and ho

24• The target host must have sufficient spare memory capacity or be able to free sufficient capacity using DynamicMemory Control. If there is not eno

25• Moving a VM from cheap local storage to fast, resilient, array-backed storage.• Moving a VM from a development to production environment.• Moving

26Chapter 7. Updating VMsThis chapter discusses updating Windows VMs with updated operating systems, updating XenServer Tools, andupdating VMs with ne

27XenServer/6.1.0/rhel4x/. Because Citrix no longer provides RHEL 5.x kernels, you should obtain updates to RHEL5.4 and higher kernels directly from R

28Chapter 8. vAppsA vApp is a logical group of one or more related Virtual Machines (VMs) which can be started up as a single entity.When a vApp is st

293. Choose which VMs to include in the new vApp, and then click Next.You can use the search box to list only VMs with names that include the specifie

30A soft shut down will be attempted on all VMs; if this is not possible, then a forced shut down will beperformed.Note:A soft shut d

31Chapter 9. Advanced Notes for VirtualMachinesThis chapter provides some advanced notes for Virtual Machines.9.1. VM Boot BehaviorThere are two optio

32xe-mount-iso-sr //server1/myisos -t cifs -o username=johndoe/mydomainxe-mount-iso-sr //server2/iso_share -t smbfs -o username=aliceAfter mounting th

iv5.4. Advanced Operating System Boot Parameters ... 185.5. Installing the Linux Guest Agen

339.4. Windows Volume Shadow Copy Service (VSS) providerThe Windows tools also include a XenServer VSS provider that is used to quiesce

349.6. Time Handling in Windows VMsFor Windows guests, time is initially driven from the control domain clock, and is updated during VM lifecycleopera

35The following table lists wallclock settings for Linux VMs:Guest OS Dependent wallclock Independent wallclockCentOS 4.x Default OptionalCentOS 5.x (

36• without BIOS strings: immediately after its creation. If a VM does not have BIOS strings set when it is started,the standard XenServer BIOS string

37sysprep modifies the local computer SID to make it unique to each computer. The sysprep binaries are on theWindows product CDs in the \support\tools

38Before Assigning a GPU to a VMBefore you assign a GPU to a VM, you need to put the appropriate physical GPU(s) in your XenServer host andthen restar

39xe vgpu-list vm-uuid=<uuid_of_vm>3. Detach the GPU from the VM by entering the following:xe vgpu-destroy uuid=<uuid_of_vgpu>4. Start the

40Chapter 10. Importing the Demo LinuxVirtual ApplianceCitrix provides a fully functional installation of a Demo Linux Virtual Appliance, based on a C

41In a web browser, enter the VM IP address. The "Demonstration Linux Virtual Machine" page should display.This page shows simple informatio

42Chapter 11. Importing and Exporting VMsXenServer allows you to import VMs from and export them to a number of different formats. Using the XenCenter

v9.1. VM Boot Behavior ... 319.1.1. Persist (XenDes

43Consider using XVA format to:• Share VMs with versions of XenServer earlier than 6.0• Import and export VMs from a script with a CLI11.1.1. Open Vir

44An Open Virtual Appliance (OVA) package is a single archive file, in the Tape Archive (.tar) format, containingthe files that comprise an OVF Packag

4511.1.4. XVA Version 1 FormatXVA Version 1 is the original format specific to Xen-based hypervisors for packaging an individual VM as a singlefile ar

46Windows operating systems when the boot device is changed between a SCSI and IDE interface. If certainvirtualization tool sets ar

4711.4.1. Importing VMs from OVF/OVANote:In order to import OVF or OVA packages, you must be logged in as root or have the PoolAdministrator Role B

48incoming VMs are stored as part of the definition of the original (exported) VM in the export file. To map anincoming virtual network interface to a

49• For Windows Vista, Server 2008, and later, set the platform parameter todevice_id=0002. For example:xe vm-param-set uuid=<VM uuid>

507. Enable Operating System Fixup: if the disk image(s) you are importing were built on a virtualization platformother than XenServer, select the Use

51• In the Resources pane, right-click, and then select Import on the shortcut menu.• On the File menu, select Import.2. On the first page of the wiza

52Note:In order to export OVF or OVA packages, you must be logged in as root or have the PoolAdministrator Role Based Access Control (RBAC) role a

viA. Windows VM Release Notes ... 55A.1. Release Notes ...

53When you create an OVF package, the virtual hard disk images are, by default, allocated the sameamount of space as the exported VM. For exampl

545. Review the export settings.To have the wizard verify the exported package, select the Verify export on completion check box. ClickFinish to begin

55Appendix A. Windows VM Release NotesA.1. Release NotesThere are many versions and variations of Windows with different levels of support for the fea

56Appendix B. Linux VM Release NotesB.1. Release NotesMost modern Linux distributions support Xen paravirtualization directly, but have diff

57• RHEL 4.7, 4.8, sometimes when there are many devices attached to a VM, there is not enough time for all ofthese devices to connect and startup fai

58B.1.3. CentOS 4Please refer to Section B.1.1, “Red Hat Enterprise Linux 4.5 to 4.8” for the list of CentOS 4 release notes.B.1.4. CentOS 5Please ref

59toFORCE_PERSISTENT_NAMES=no3. Save the changes and reboot the VM.B.1.11. Ubuntu 10.04On an Ubuntu 10.04 (64-bit) VM, attempts to set the value of ma

60Appendix C. Creating ISO ImagesXenServer can use ISO images of CD-ROM or DVD-ROM disks as installation media and data sources for Windowsor Linux VM

61Appendix D. Enabling VNC for Linux VMsVMs might not be set up to support Virtual Network Computing (VNC), which XenServer uses to control VMsremotel

62Note:You can check that the VNC server is running using a command like ps ax | grep vnc.D.2. Enabling a Graphical Console on Red Hat, CentOS, or Ora

viiD.2.3. Firewall Settings ... 63D.2.4. VNC Screen Resolut

63Modify it to read:0=VNC• If you are using Red Hat Linux 5 or greater, add the above line just below the [servers] section andbefore the [server-VNC]

64D.2.5. Enabling VNC for RHEL, CentOS, or OEL 6.x VMsIf you are using Red Hat Linux version 6, the GDM configuration file is /etc/gdm/custom.conf. Th

65Note:Red Hat Linux uses runlevel 5 for graphical startup. If your installation is configured to start upin runlevel 3, change this for the display m

66service vnc1{socket_type = streamprotocol = tcpwait = nouser = nobodyserver = /usr/X11R6/bin/Xvncserver_args = :42 -inetd -onc

67To Open the VNC Port on SLES 11.x VMs' Firewall1. Open a text console on the VM and run the YaST utility:yast2. Use the arrow keys to select Se

68Appendix E. Setting Up a Red HatInstallation ServerThis chapter explains how to set up a server as an installation server for Red Hat Linux.For a se

69To check, type the command:showmount -e hostnameRunning the showmount command without the hostname parameter will check the local system.If NFS is n

70Appendix F. Troubleshooting VM ProblemsCitrix provides two forms of support: free, self-help support on the Citrix Support website and paid-for Supp

71You can configure the VMs dump level by following the menu path My Computer > Properties > Advanced >Startup and Recovery.F.2. Troubleshoot

1Chapter 1. About this Document1.1. OverviewThis is a guide to using Virtual Machines (VMs) with XenServer™, the platform virtualization solution from

2Chapter 2. Virtual MachinesThis chapter provides an overview of how to create Virtual Machines (VMs) using templates. It also explains otherpreparati