If you use GDS on a Xen guest, pay attention to the following points when you add a virtual disk to a Xen guest:
When you add a virtual block device to a guest, add it without dividing a disk.
For a disk to be mirrored on a guest, add it as a virtual SCSI device.
See
When using a virtual disk as a shared disk on a Xen guest, see "PRIMECLUSTER Installation and Administration Guide" for necessary setups and notes.