To restore a pool with all hosts failed | Citrix Systems 5.6

xe pool-emergency-transition-to-master xe pool-recover-slaves

2.If the commands succeed, restart the VMs.

To restore a pool with all hosts failed

1.Run the command:

xe pool-restore-database file-name=<backup>

Warning:

This command will only succeed if the target machine has an appropriate number of appropriately named NICs.

2.If the target machine has a different view of the storage (for example, a block-mirror with a different IP address) than the original machine, modify the storage configuration using the pbd-destroycommand and then the pbd-createcommand to recreate storage configurations. See the section called “PBD commands” for documentation of these commands.

3.If you have created a new storage configuration, use pbd-plugor Storage > Repair Storage Repository menu item in XenCenter to use the new configuration.

4.Restart all VMs.

To restore a VM when VM storage is not available

1.Run the command:

xe vm-import filename=<backup> --metadata

2.If the metadata import fails, run the command:

xe vm-import filename=<backup> --metadata --force

This command will attempt to restore the VM metadata on a 'best effort' basis.

3.Restart all VMs.

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Citrix Systems 5.6 manual To restore a pool with all hosts failed, To restore a VM when VM storage is not available

Contents

Citrix XenServer 5.6 Administrators Guide Trademarks Managing users Table of Contents Storage ISO NFS VHD Configuring VM memory Viii Workload Balancing Page Page Backup and recovery 123 Monitoring and managing XenServer 136 Xiv Page Xvi Xvii Xviii Xix Index 214 How this Guide relates to other documentation Document Overview Managing users Authenticating users using Active Directory AD Upgrading from XenServer Configuring Active Directory authentication Enabling external authentication on a pool Removing access for a user using the CLI User authenticationDisabling external authentication Allowing a user access to XenServer using the CLI Terminating individual user sessions using xe Removing access for a userListing subjects with access Terminating all authenticated sessions using xe Role Based Access Control Rbac process Roles Permissions available for each role Definitions of Rbac roles and permissionsUsers role can be changed in two ways WLB Definitions of permissions Permission Allows Assignee To Rationale/Comments Definitions of permissions Permission Allows Assignee To Rationale/Comments Permission Allows Assignee To Rationale/Comments To list all the available defined roles in XenServer Working with Rbac using the xe CLI To display a list of current subjects To assign an Rbac role to a created subject Run the command xe subject-add subject-name=AD user/groupTo add a subject to Rbac To obtain all audit records from the pool Audit log xe CLI commandsAuditing To change a subjects Rbac role How does XenServer compute the roles for the session? Requirements for creating resource pools Hosts and resource pools overview Naming a resource pool Creating a resource pool Adding shared storage Creating heterogeneous resource pools Removing a XenServer host from a resource pool Adding NFS shared storage to a resource pool using the CLITo remove a host from a resource pool using the CLI Overcommitment Warning High AvailabilityHA Overview Overcommitting Restart priorities Configuration Requirements Enabling HA on a XenServer pool Enabling HA using the CLI Shutting down a VM when it is protected by HA Removing HA protection from a VM using the CLIRecovering an unreachable host Shutting down a host when HA is enabled Using the CLI to Manage Host Power On Host Power OnPowering on hosts remotely Key/Value Pairs To enable Host Power On using the CLITo turn on hosts remotely using the CLI Possible values Sample Script Physical Block Devices PBDs Storage OverviewStorage Repositories SRs Virtual Disk Images VDIs Virtual Disk Data Formats Virtual Block Devices VBDsSummary of Storage objects VHD Chain Coalescing VHD-based VDIs LUN-based VDIs Storage configurationCreating Storage Repositories VDI types Creating a raw virtual disk using the xe CLIUpgrading LVM storage from XenServer 5.0 or earlier LVM performance considerations Probing an SR Converting between VDI formats Following parameters can be probed for each SR type Page Storage Multipathing To enable storage multipathing using the xe CLI Storage Repository Types Creating a local EXT3 SR ext Local LVMLocal EXT3 VHD Creating a local LVM SR lvm Creating a shared EqualLogic SR UdevEqualLogic Parameter Name Description Optional? NetApp Creating a VDI using the CLI Aggregates FlexVols Licenses Access ControlThick or thin provisioning FAS Deduplication Creating a shared NetApp SR over iSCSI Taking VDI snapshots with a NetApp SR Software iSCSI SupportManaging VDIs in a NetApp SR Managing Hardware Host Bus Adapters HBAs XenServer Host iSCSI configurationSample QLogic iSCSI HBA setup Removing HBA-based SAS, FC or iSCSI device entries LVM over iSCSI Parameter Name Description Optional? Hitachi NFS VHD Creating a shared NFS SR nfs LVM over hardware HBA Creating a shared StorageLink SR Citrix StorageLink Gateway Cslg SRs Parameter name Description Optional? To create a Cslg SR Page Managing Storage Repositories Introducing an SR Destroying or forgetting a SR Copying all of a VMs VDIs to a different SR Resizing an SRConverting local Fibre Channel SRs to shared SRs Moving Virtual Disk Images VDIs between SRs Adjusting the disk IO scheduler Virtual disk QoS settings Possible values of qosalgorithmparamsched are Concept of dynamic range What is Dynamic Memory Control DMC? How does DMC Work? Concept of static rangeDMC Behaviour Supported operating systems Memory constraints Display the dynamic memory properties of a VM Xe CLI commandsDisplay the static memory properties of a VM Updating memory properties Workload Balancing interaction Upgrade issuesUpdate individual memory properties XenServer networking overview Networking Networks Using VLANs with host management interfacesUsing VLANs with virtual machines Network objects NIC bonds Using VLANs with dedicated storage NICs Creating networks in a standalone server Managing networking configurationInitial networking configuration Creating VLANs To add a new network using the CLITo connect a network to an external Vlan using the CLI Creating networks in resource pools Bonding two NICs together Creating NIC bonds on a standalone hostCreating a NIC bond on a dual-NIC host Reverting NIC bonds Creating NIC bonds in resource poolsControlling the MAC address of the bond Adding NIC bonds to new resource pools Adding NIC bonds to an existing pool To add NIC bonds to the pool master and other hosts To assign NIC functions using the xe CLI Configuring a dedicated storage NICControlling Quality of Service QoS Changing networking configuration options DNS servers Changing IP address configuration for a standalone hostChanging IP address configuration in resource pools Hostname To change the NIC used for the management interface Disabling management accessTo change the IP address of a pool master host Management interface Re-ordering NICs NIC/PIF ordering in resource poolsAdding a new physical NIC Verifying NIC ordering Diagnosing network corruption Networking Troubleshooting Recovering from a bad network configuration Whats New? New Features Changes Workload Balancing Overview Workload Balancing Basic Concepts Workload Balancing Installation Overview Recommended Hardware Workload Balancing System RequirementsSupported XenServer Versions Supported Operating Systems Workload Balancing Data Store Requirements SQL Server Database Authentication Requirements Operating System Language Support Preinstallation Considerations WLB Access Control Permissions Installing Workload Balancing To install Workload Balancing server To verify your Workload Balancing installation Upgrading Workload Balancing Configuring Firewalls Upgrading Workload Balancing and the Operating System Initializing Workload BalancingUpgrading Workload Balancing on the Same Operating System Upgrading SQL Server To initialize Workload Balancing Authorization for Workload Balancing Configuring Antivirus Software Configuring Workload Balancing Settings Scheduled To display the Workload Balancing Configuration dialog boxAdjusting the Optimization Mode Fixed To edit or delete an automatic optimization interval Optimizing and Managing Power AutomaticallyTo set an optimization mode for all time periods Accepting Optimization Recommendations Automatically Enabling Workload Balancing Power Management 102 To apply optimization recommendations automatically To select servers for power managementChanging the Critical Thresholds To change the critical thresholds Tuning Metric WeightingsDefault Settings for Critical Thresholds Excluding Hosts from Recommendations To edit metric weighting factors VM Optimization Criteria Historical Data Storage Time Number of Times an Optimization Recommendation is Made To configure VM Recommendation intervals To resume a virtual machine on the optimal server To start a virtual machine on the optimal server To accept an optimization recommendation Administering Workload BalancingAccepting Optimization Recommendations Disabling Workload Balancing Reconfiguring a Pool to Use Another WLB Server Updating Workload Balancing Credentials Click Update Credentials Customizing Workload Balancing Entering Maintenance Mode with Workload Balancing EnabledUninstalling Workload Balancing Subscribing to Workload Balancing Reports To enter maintenance mode with Workload Balancing enabledWorking with Workload Balancing Reports Introduction To subscribe to a Workload Balancing report Using Workload Balancing Reports for TasksGenerating and Managing Workload Balancing Reports To generate a Workload Balancing report Report Toolbar Buttons To cancel a report subscriptionTo navigate in a Workload Balancing Report Toolbar Buttons Report Generation FeaturesDisplaying Workload Balancing Reports To print a Workload Balancing report Host Health History Workload Balancing Report Glossary Pool Audit Log History Pool Optimization Performance History Audit Log Event Names Pool Health Pool Optimization History Pool Health History Virtual Machine Performance History Virtual Machine Motion History To backup a VM BackupsTo backup pool metadata To backup host configuration and software Backup and restore using xsconsole Full metadata backup and disaster recovery DRDR and metadata backup overview Moving SRs between hosts and Pools VM Snapshots Using Portable SRs for Manual Multi-Site Disaster Recovery Creating a VM Snapshot Regular SnapshotsQuiesced Snapshots Snapshots with memory To list the snapshots on a particular VM Creating a snapshot with memoryTo list all of the snapshots on a XenServer pool Deleting a snapshot Restoring a VM to its previous state Creating a template from a snapshot Snapshot Templates Advanced Notes for Quiesced Snapshots Exporting a snapshot to a template 132 Master failures Coping with machine failuresMember failures Physical Machine failure Coping with Failure due to Configuration ErrorsPool failures To restore a VM when VM storage is not available To restore a pool with all hosts failed Alerts Monitoring and managing XenServer Valid VM Elements Customizing Alerts Valid Host Elements Configuring Email Alerts To determine PBD throughput Custom Fields and TagsCustom Searches Determining throughput of physical bus adapters To write logs to a remote server XenServer host logsSending host log messages to a central server Userprofile%\AppData\Citrix\XenCenter\logs\XenCenter.log XenCenter logs Basic xe syntax Xe command-name argument=value argument=value Special characters and syntax Class-list Command types Class-param-list uuid=uuid Low-level param commandsParameter types Low-level list commands Bond-create Xe command referenceBonding commands Bond parameters CD parameters CD commands Cd-listparams=param1,param2,... parameter=parametervalue Console commandsConsole parameters Cd-list Event-wait Event commandsEvent classes Host parameters Host XenServer host commandsHost selectors Parameter Name Description Type Syslogdestination Host-backupfile-name=backupfilenamehost=hostname Host-backup Host-crashdump-destroy Host-disableHost-emergency-management-reconfigure Host-bugreport-upload Host-get-system-status Host-enableHost-evacuate Host-forget Attribute Description Host-get-system-status-capabilities License-server-port Host-is-in-emergency-modeHost-apply-edition License-server-address Host-logs-download Host-management-disableHost-management-reconfigure Host-license-view Host-restore Host-power-onHost-set-power-on Host-reboot Log commands Message-list Message commandsMessage parameters Message-create 192.168.0.4 Network commandsNetwork parameters Subnet/netmask/gateway Network-destroy Patch update commandsPatch parameters Network-create PBD parameters PBD commands Pbd-plug PIF commandsPbd-create Pbd-destroy MAC PIF parameters Dhcp Pif-forget uuid=uuidofpif Pif-forgetPif-introduce Pool parameters Pool commands Parameter Name Description Type Pool-dump-database Pool-emergency-reset-masterPool-ha-enable Pool-designate-new-master SM parameters Storage Manager commands SR parameters SR commands Sr-destroy uuid=sruuid Sr-createSr-destroy Sr-forget Sr-probe Task commandsTask parameters Sr-introduce Task-cancel uuid=taskuuid Template commandsTask-cancel Template parameters For memory-dynamic-max Uuid=vmuuid \ Parameter Name Description Type YyyymmddThhmmss z As not in database for Not in database for a Form yyyymmddThhmmss User-password-change Update commandsUser commands Update-upload VBD parameters VBD commands Vbd-create VDI commands VDI parameters Tree /local/domain/0/backend Vdi-cloneVdi-copy Vdi-create Vdi-introduce Vdi-destroyVdi-forget Vdi-import Vdi-unlockuuid=uuidofvditounlock force=true VIF commandsVIF parameters Vdi-unlock Uuid=vifuuid \ Vif-unplug Vif-createVif-destroy Vif-plug VM parameters Vlan commandsVM commands VM selectors Parameter Name Description Type Uuid=templateuuid \ Parameter Name Description Type Value pair autopoweron true VCPUs-number to a value Domain/domid/vm Vm-cd-ejectvm-selector=vmselectorvalue Vm-cd-addVm-cd-eject Vm-clone Vm-cd-insertVm-cd-list Vm-cd-remove Vm-data-source-list Vm-copyVm-crashdump-list Vm-data-source-forget Vm-disk-add Vm-data-source-queryVm-data-source-record Vm-destroy Vm-import Vm-disk-listVm-disk-remove Vm-export Vm-migrate Vm-installVm-memory-shadow-multiplier-set Vm-shutdown Vm-rebootVm-reset-powerstate Vm-resume Vm-vcpu-hotplug Vm-uninstallVm-start Vm-suspend Workload Balancing commands Pool-certificate-sync Pool-certificate-installPool-certificate-list Pool-retrieve-wlb-recommendations Pool-deconfigure-wlbPool-retrieve-wlb-configuration Pool-param-set Pool-send-wlb-configuration Pool-send-wlb-configuration Index