They have a large Windows fileserver VM with 3 virtual disks, a 60 GB VMDK and two 1 TB VMDKs glued together in Windows as a 2GB logical volume. All VMDKs are thick provisioned.
When running a backup of this VM, the job fails completely with the following error:
Other VMs in this job run correctly without error. This VM is on a host that is part of a 4 node HA cluster, all connected to an Equallogic iSCSI SAN. The VMFS partition is 7.9 TB (4 x 2 TB extents) and has 3+ TB free. Veeam version is 4.1.1.CreateSnapshot failed, vmRef "vm-102", timeout "1800000", snName "VEEAM BACKUP TEMPORARY SNAPSHOT", snDescription "Please do not delete this snapshot. It is being used by Veeam Backup.", memory "False", quiesce "False
File <unspecified filename> is larger than the maximum size supported by datastore '<unspecified datastore>