FortiMail and Veeam Backup & Replication

Hello everyone,

I have a problem with the backup of the fortimail with veeam 9.5 u3. 

"VMDK disk is not properly aligned. Disk size is not a multiple of 1KB."

No vmware tools installed in the vm of course.

Application aware backup and vmware tools quiescence are disabled.

Is it possible to resize the main disk ?

Thanks in advance for all the answers.