JoakimZiegler
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What is the quick headlines on that medium? We're still loading everything to SATA drives and putting that in storage because so often clients come back within the year and need something from a project.
By headline I mean:
Unit costs: _______
Cost per gig after unit purchase (i.e. tape cost per gig):_________
(SATA are about 30 cents per gig)
We also use LTO-4 for archiving projects. The unit cost is a bit variable, 4500 dollars should definitely get you one, there's a Tandberg LTO Ultrium 1640 on Amazon (of all places) for about that, we use a Dell SAS model which I think was slightly more expensive, but we bought it a few months ago too.
You also need to figure in the costs of a controller and a server to run it on, probably, and work out what software to use to backup/restore. Most backup software is not really suitable for the sort of thing you need for long-term project storage. We hacked up some scripts using tar on a Linux box ourselves.
As for the tapes, it seems going price is about 125 dollars per 800 GB tape right now, at least in quantities of 5 or 10. That translates to about 16 cents per gig. Beware, though, that 800 GB in this case is 800,000,000,000 bytes, which is what your filesystem would report as about 745 GiB. Standard storage disclaimer.