theoldwizard1 wrote:
rlw999 wrote:
I wouldn't run RAID-5 with such a large array, at least not unless you have good backups or don't care if you lose the data.
RAID is NEVER a substitute for backup !
Admittedly, my RAID array only gets backuped up once a week.
I agree, that RAID is not backup, but I also know that most home users don't have a reasonable way to back up 20TB+ of data. Thanks to a 1TB bandwidth cap from my ISP, it would take me nearly 2 years to back up or restore that much data unless I'm willing to pay a huge bandwidth fee.
I have less than a TB of data that I consider to be important, and I back that data up with a cloud backup service. The rest is mostly movies and I have the original disks for them, so I'd just re-copy them if I had to. I have most of the data backed up on a external hard drives, but they aren't stored off-site (but are at last stored on the opposite side of the house from the fileserver), so aren't great back ups.