I have this HP NL 40-server. On it a vm (Windows 2012 R2) with 3 SATA disks in RAID.
Now I'd like to backup the data on this RAID-volume. Which is the most effective way to do this? There are 4 slots in the server, so I could add a 4th SATA disk to backup to but I'd prefer to extend my raid to it.
I have the option to add an usb controller to the vm. The idea is to attach an external usb drive to the hp nl40 and make backups to it.
Can that be done? If not, what would be a good alternative?