NetBackup for VMware: Exclude deleted blocks

[AdN]

The NetBackup 10.1 admin guide [1] says about the "Exclude deleted blocks" VMware optimizations:

Reduces the size of the backup image by excluding any unused or deleted blocks within the file system on the virtual machine. This option supports the following file systems: Windows NTFS, and Linux ext2, ext3, and ext4.

This option uses proprietary mapping technology to identify vacant sectors (allocated but empty) within the file system.

Currently all our RHEL based virtual machines are using XFS filesystem, which is the default by Red Hat. Is this feature likely to come for XFS or is it worth to change our templates to use ext4 filesystem instead?

[1] https://www.veritas.com/support/en_US/doc/21902280-158271263-0/v62458922-158271263

[X2]

@davidmoline  This feature for default RHEL VMs (with XFS file system) will likely lead to backup improvements. Can you check with backline about plans for XFS support?

[AdN]

Any ideas if that is even possible for XFS or it will come in a future release?