If I have spare time and someone I can hand it off to, and if my user can't afford to spend that much, and the user has a relaly high quality WAN with a ton of bandwidth, I tend to use OpenSolaris, ZFS, rsync, and other open source stuff. As mentioned before, ZFS is a killer file system - absolte best out there - and you can put together a cheap app server and storage server and wire this stuff together. It does require handing off to soemoen who knows what they're doing - new releases and bugs and stuff can really suck time from you.
Most of the time I use Unitrends It's an integrated appliance that does disk-to-disk backup and has replication and all taht stuff built in with a killer user interface and support I can point someone to instead of having to do it myself. I like the disk archive stuff because most of the time WAN bandwidth is an issue and I like whatever they've done in replication because it seems fastger than rsync on what I do. Plus because their unknown I like the fact I can get this priced below what pure software stuff from Symantec (which has the worst support in the universe) and CommVault (expensive as hell). I think the user interface they have kicks ass too particularly when I have to hand off to someone who isn't as technical as I am.
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If I have spare time and someone I can hand it off to, and if my user can't afford to spend that much, and the user has a relaly high quality WAN with a ton of bandwidth, I tend to use OpenSolaris, ZFS, rsync, and other open source stuff. As mentioned before, ZFS is a killer file system - absolte best out there - and you can put together a cheap app server and storage server and wire this stuff together. It does require handing off to soemoen who knows what they're doing - new releases and bugs and stuff can really suck time from you. Most of the time I use Unitrends It's an integrated appliance that does disk-to-disk backup and has replication and all taht stuff built in with a killer user interface and support I can point someone to instead of having to do it myself. I like the disk archive stuff because most of the time WAN bandwidth is an issue and I like whatever they've done in replication because it seems fastger than rsync on what I do. Plus because their unknown I like the fact I can get this priced below what pure software stuff from Symantec (which has the worst support in the universe) and CommVault (expensive as hell). I think the user interface they have kicks ass too particularly when I have to hand off to someone who isn't as technical as I am.