I amass a decent amount of RAW data every year, around 500GB, and am looking to modify my storage practices. Currently, I have a file server that houses my data drive as well as a backup disk. I then have my production box that reads/writes data to the file server over the network. The potential problems are fire, flood, theft, drive failure, etc. My ideas are Raid 10 > Production box with hot swap bay > Rotate one of the mirror drives on a weekly basis and move it offsite. Pros: Performance, data redundancy, seamless drive sync Cons: Cost Raid 1 > Production Box > External hard drive to backup the array on a weekly basis and move it offsite. Pros: Cost Cons: Performance, needs software backup, not as automated/seamless Raid 1 > NAS/file server > External hard drive to backup the array on a weekly basis and move it offsite. Pros: separate operating environment, automated backup process Cons: power consumption of another server I'm basically looking for advice on whether you think Raid 10 is worth the cost and if you think having a NAS is helpful in anyway? I'm the only one using the system.