An LTO6 tape, at about 3TiB, is about $60 and will last five years on the shelf before you "should" refresh it.
A 3TiB HDD is about $100 and if you aren't running ZFS on it you can expect some corruption from bit-rot within hours. With ZFS you either have to worry about keeping all your disks together so you can re-create the zpool or you will be doing a lot of drive swapping. With Tape you also get the benefit of a robotic arm to automatically swap tapes in and out of the drive. A 32-bay tape library is about $6k. A 32-bay drive chassis is $10k+ Even at small scale, tape has a considerable advantage for long-term archive storage. On Thu, Apr 17, 2014 at 7:18 AM, Chris Schafer <[email protected]> wrote: > Yeah I am pretty sure the math is bad for tape backups except at the > largest scales where the power to spin the drives makes it more expensive. > Ideally you can find a system to spin the drives down. > > > On Wed, Apr 16, 2014 at 11:11 PM, Michael Dexter <[email protected] > >wrote: > > > On 4/16/14 2:03 PM, Paul Heinlein wrote: > > > What sort of budget do you have? Do you need a library for hotswapping > > > tapes? Do you need multiple drives in said library? > > > > Large zpools to backup and sneakernets. It sounds like a basic unit > > would be a good start an no, I didn't think I would ever think of tape > > again, ever, ever. > > > > Thanks for all the suggestions. > > > > Michael > > _______________________________________________ > > PLUG mailing list > > [email protected] > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > -- Perfection is just a word I use occasionally with mustard. --Atom Powers-- _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
