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Preparing a Pool of XenServer Hosts for Maintenance

Jun 13, 2017
Preparing a Pool of XenServer Hosts for Maintenance
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Before performing maintenance operations on a XenServer host that is part of a resource pool, you should disable it (which prevents any VMs from being started on it), then migrate its VMs to another XenServer host in the pool. This can most readily be accomplished by placing the XenServer host into Maintenance mode using XenCenter. See the XenCenter Help for details.

Note

Placing the master host into maintenance mode will result in the loss of the last 24hrs of RRD updates for offline VMs. This is because the backup synchronization occurs every 24hrs.

Warning

Citrix highly recommends rebooting all XenServers prior to installing an update and then verifying their configuration. This is because some configuration changes only take effect when a XenServer is rebooted, so the reboot may uncover configuration problems that would cause the update to fail.


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