XenServer in High Availability Enabled Pool is Unresponsive and Does not Self-Fence

A XenServer in a High Availability enabled pool is unresponsive. The Virtual Machines on that host might not work, or are unable to stop, or unable to migrate any Virtual Machines...

Troubleshooting thin provisioning for shared block storage on XenServer

XenServer and Citrix Hypervisor use GFS2 to provide the ability to set up thin provisioning with a shared block storage device. Pools that use GFS2 to thin provision their shared block storage are clustered and behave differently to pools that use shared file-based storage or LVM with shared bloc...

NetScaler 11.1 - Services flap on VPX/Interface hangs observed on XenServer

Services flaps on VPX/Interface hands observed on XenServer...