On 09/16/2013 02:47 PM, Lawrence K. Chen, P.Eng. wrote: > Wonder how old our LTO1's were....when we upgraded our system to LTO3, one > unit that we did archives for didn't want initially have to pay for the > archive tapes...so we said they could have their archives written to the old > LTO's for as long as we had them. Don't know when they ran out...but I think > long enough for change of management to axe chargebacks. > > That particular unit wants infinite retention. Other archives we do have > like 3, 5, 7 year retentions. (wonder how they came up with that number > sequence)
We do our backups and archives through a cost center. We've tried working around these two problems with two separate rates: 1. Pay $58/TB/year in perpetuity for backups or archives with any retention you want, including an offsite copy. We have yet to have someone refuse to pay - I suppose that's my boss's problem if it ever does crop up. 2. Pay one-time ~$90/TB (the final rate hasn't been nailed down yet) for a six-year archive. After six years, the archive disappears. We chose six years because it's close to how long it takes two generations of LTO to be developed. We figure we can keep two generations of drives running alongside each other, which for read-only access (suitable for archives) can cover three generations of LTO media. By expiring at six years we hope we can avoid the hassle/expense of a media migration. These rates cover capital and operating costs modulo FTE - being grant-funded limits our ability to recapture FTE through a cost-center. Skylar _______________________________________________ Tech mailing list Tech@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
