Orchestra Disk Coaslesce

Disk coalescing is required when snapshots are made, it is how the shadow image and main image become one again. This should be done automatically but doesn't always happen. If the disks do not coalesce properly you will end up with phantom space missing from your storage device.

To check for disk coalesce-tion go to the storage device under the host and check the Advanced tab

Any VDI that are pending coalesce are listed here, if they are not coalescing then you may need to stop that VM and let it be processed while offline.