SATA RAID backup system followup
ok, guess i didn't explain myself well enough in my last post, so i thought i'd post again and outline the details a bit more of what i was thinking of doing, instead of replying to each post individually. thanks to everyone that weighed in!
1) on a small budget. by that i mean around or under $2000 including any and all media that might be necessary.
2) this is a small business. nightly off-site backups are not strictly necessary, though of course always best.
3) needs highest level of automation possible with minimal user interaction with backup system. cannot depend on someone to switch a tape every day. once a week is do-able.
4) need lots of space. more than typically offered by low end tape drives. estimating that in the next year to two years, one week of data will not exceed 80GIG compressed.
5) only need 30 days worth of protection. long term data archiving is not necessary.
ok, here's what i was thinking:
- 4 160GIG SATA drives in a RAID5. the OS would be on a mirrored set of smaller drives.
- 4 80GIG SATA drives in removable cases, not in any type of array, but mounted individually.
- every night it would do a backup of the network onto the RAID, compress, encrypt, keep a copy on the RAID and send one to an off-site location over the wire. i kinda have an advantage here cause i have access to an off-site location at 10/100 network speeds. the off-site location has enough space for one week of estimated data.
- once a week it would dump the past week worth of data onto one of the 4 removable drives, that drive would be yanked and taken to an off-site vault (not the same location as the off-site network) in a foam padded static resistant carrying case. the removable drives would go in sequence such that one drive would sit in the vault for 3 weeks before it was placed back in the rotation.
does anyone think i can/should do this? i'm aware of how fragile hard drives are, but am on a tight budget that is non-negotiable. is there a better way to spend my $2K?
i'm really interested in what other people would do with the same set of parameters, so any input is welcome. thanks again!