V-79-57344-38265 - Virtual Machine backup with Application GRT enabled can fail when compression or encryption is enabled on the backup-to-disk folder

Problem

Virtual Machine backup with Application GRT (Granular Recovery Technology) enabled, completes with Failed status without processing File Folder GRT or Application GRT but might complete VMDK or VHD backup. 

Error Message

Final error: 0xe0009579 - Unable to copy the virtual machine disk using the VMware VixDiskLib.

Error writing file data.

V-79-57344-38748 - Backup Exec was unable to prepare Microsoft Exchange resources for Granular Recovery Technology (GRT) operations. Therefore you will be unable to perform GRT-enabled restores of Microsoft Exchange data for '\\<Exchangeservername>\Microsoft Information Store\Mailbox Database 0382084429' from the backup.

V-79-57344-38748 - Backup Exec was unable to prepare Microsoft Exchange resources for Granular Recovery Technology (GRT) operations. Therefore you will be unable to perform GRT-enabled restores of Microsoft Exchange data for '\\<Exchangeservername>\Microsoft Information Store\Public Folder Database 1738776027' from the backup.

In the Servername_beremote.log, you may see errors such as:

- VDDK-Log: DISKLIB-SPARSE: "I:\BEData\IMG000123\EXServer_1.vmdk" : failed to grow disk: The requested operation could not be completed due to a file system limitation (29900000002).
- VDDK-Log: DISKLIB-LIB   : RWv failed ioId: #4068733 (43581449) (9) .
 

Cause

There are a number of reasons that this error can occur. This article outlines the specific issue of having compression enabled on disks that are used for Backups. Do not use Microsoft Windows compression or encryption on the volumes hosting the backup-to-disk folder.

Solution

Compressed disks are not supported for backup targets.

Please refer to the following KB articles: