Citrix Systems Understanding XenServer Workload Balancing Commands and VM Management

vm-uninstall

vm-uninstall[<vm-selector>=<vm_selector_value>...] [force=<true false>]

Uninstall a VM, destroying its disks (those VDIs that are marked RW and connected to this VM only) as well as its metadata record. To simply destroy the VM metadata, use xe vm-destroy.

The VM or VMs on which this operation should be performed are selected using the standard selection mechanism (see VM selectors). Optional arguments can be any number of the VM parameters listed at the beginning of this section.

vm-vcpu-hotplug

vm-vcpu-hotplugnew-vcpus=<new_vcpu_count>[<vm-selector>=<vm_selector_value>...]

Dynamically adjust the number of VCPUs available to a running paravirtual Linux VM within the number bounded by the parameter VCPUs-max. Windows VMs always run with the number of VCPUs set to VCPUs-maxand must be rebooted to change this value.

The paravirtualized Linux VM or VMs on which this operation should be performed are selected using the standard selection mechanism (see VM selectors). Optional arguments can be any number of the VM parameters listed at the beginning of this section.

vm-vif-list

vm-vif-list[<vm-selector>=<vm_selector_value>...]

Lists the VIFs from the specified VMs.

The VM or VMs on which this operation should be performed are selected using the standard selection mechanism (see VM selectors). Note that the selectors operate on the VM records when filtering, and not on the VIF values. Optional arguments can be any number of the VM parameters listed at the beginning of this section.

Workload Balancing XE Commands

Commands for controlling the Workload Balancing feature.

pool-initialize-wlb

pool-initialize-wlb wlb_url=<wlb_server_address> \

wlb_username=<wlb_server_username> \ wlb_password=<wlb_server_password> \

xenserver_username=<pool_master_username> \ xenserver_password=<pool_master_password>

Initializes the connection between the Workload Balancing server and the XenServer pool.

Note:

Initializing a pool requires running two commands. After executing the pool-initialize-wlbcommand, execute xe pool-param-setwlb-enabled=trueuuid=<pool-uuid>[].

pool-param-set other-config

Use the pool-param-setother-configcommand to specify the timeout when communicating with the Workload Balancing server. All requests are serialized, and the timeout covers the time from a request being queued to its response being completed. In other words, slow calls cause subsequent ones to be slow. Defaults to 30 seconds if unspecified or if the setting cannot be parsed.

xe pool-param-set other-config:wlb_timeout=<0.01>\

uuid=<315688af-5741-cc4d-9046-3b9cea716f69>

181