FMV6587W
VMVSS backup failed to back up the Exchange mailbox history from virtual machine 'VM-Name'.
Explanation
An error occurred when a data mover tried to back up the Exchange mailbox history from a virtual machine. The current version of Data Protection for Exchange might not support uploading mailbox history at the same time as a virtual machine backup. The error code indicates the reason for the failure.
System action
Processing continues without backing up the mailbox history information.
User response
Try to back up mailbox history on guest vm by using Data Protection for Exchange command 'tdpexcc.exe backup * full /UpdateMailboxInfoOnly'. Upgrade Data Protection for Exchange if the current product level does not support mailbox history backup command. Use traceflags VMTSMVSS in data mover dsm.opt file to further diagnose the problem.