Citrix Systems 5.6 iv

Creating a resource pool ............................................................................................................. 20

Creating heterogeneous resource pools .......................................................................................... 21

Adding shared storage ................................................................................................................ 21

Removing a XenServer host from a resource pool ............................................................................. 22

High Availability .......................................................................................................................... 23

HA Overview ..................................................................................................................... 23

Overcommitting ......................................................................................................... 23

Overcommitment Warning ............................................................................................ 23

Host Fencing ............................................................................................................ 23

Configuration Requirements .................................................................................................. 24

Restart priorities ................................................................................................................ 24

Enabling HA on a XenServer pool .................................................................................................. 25

Enabling HA using the CLI ................................................................................................... 25

Removing HA protection from a VM using the CLI ..................................................................... 26

Recovering an unreachable host ........................................................................................... 26

Shutting down a host when HA is enabled .............................................................................. 26

Shutting down a VM when it is protected by HA ....................................................................... 26

Host Power On ......................................................................................................................... 27

Powering on hosts remotely ................................................................................................. 27

Using the CLI to Manage Host Power On ............................................................................... 27

To enable Host Power On using the CLI ......................................................................... 28

To turn on hosts remotely using the CLI .......................................................................... 28

Configuring a Custom Script for XenServer’s Host Power On Feature .... ..... ..... ..... ..... ..... ..... ..... ..... . 28

Key/Value Pairs ......................................................................................................... 28

host.power_on_mode .......................................................................................... 28

host.power_on_config ......................................................................................... 29

Sample Script ........................................................................................................... 29

Storage ........................................................................................................ 30