I have a file server that has the operating system on two drives in RAID 1 and the data is stored on 7 drives in RAID 5. All data is backed up to Azure. Is it necessary to backup the file server's C drive if all the "important" data is stored on separate drives in that server? The reason I ask is if this server crashes, and I'm forced to replace the os drives and or the data drives, I would reinstall the os and then restore all data from Azure on the new drives. Any input is appreciated.