|I am running multiple servers|
...shame I don't use raid.
You're running multiple servers without RAID????
*palm slap to forehead*
You'll pardon me for saying this but, even with a great backup plan, this is just, well, (again, excuse me) dumb!
If a disk fails in your server, your server is dead in the water until you replace the drive, restore the backup and bring it back up online. Anywhere from 30 minutes to hours. What if the server dies at 02:00 and you're at home in bed??
At a minimum, a RAID 1 in each server will allow you lose a drive and not have to rush around trying to rebuild it. You simply replace the defunct drive and tell it to rebuild the RAID. You don't even have any downtime this way and the server never goes offline. What if it's 02:00 and you're at home in bed? No biggy, you roll over, go back to sleep and deal with it at 08:00 when you get to work.
Our main server room guy has been away due to health issues for a couple months now so I've been covering him in the data center. I've probably replaced 10 to 15 drives in the last 4 months. I hate to think of the issues and headaches we'd have had if all those servers were not utilizing RAID. They're all pretty much mission critical.
Nobody runs servers without RAID in them, that's just asking for serious trouble.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.