An error appears indicating the CreateSnapshotSet() failed. What should I do?
When trying to image a drive, an error appears indicating the CreateSnapshotSet() failed. How can this error be resolved?
The error basically means that the system doesn't have enough of a buffer to hold all write operations occurring during a backup. You need to increase the area allowed to VSS to buffer such write operations.
On Windows Server operating systems you need to open the properties of one drive, such as C:, and open the Shadow Copies tab. Then select the drive and click Settings:
Now you need to specify No Limit or at least 15% of the drive's size as a limit. Do this for each drive in your system and try to run the backup again.