I need to optimize the duration of a backup.
The VM is a replica. Size: 8 TB.
It's located on a NFS (Synology NAS) datastore and the target storage is an iSCSI storage array
The actual processing rate is around 90 MB/s.
Any advice regarding the settings of the job so the backup doesn't last more than 30 hours ?

I know I can't expect a miracle with such a configuration but right now, backing up this machine isn't something viable...
Thanks !
Eric