I believe it is incorrect to call LTO either slow or costly.
At $50 per 1.5 TB tape, the cost is 3.2 cents per gigabyte (LTO-5 tapes can now be found for $40 and will continue downward to about $25 over the next year)
Amazon Glacier storage is 1 cent per gigabyte per month, S3 costs even more, and with both you have to pay additional transaction costs to get your data back.
LTO tapes last 30 years which works out to less than .00001 cents per gigabyte per month. And you don’t have to store them in Iron Mountain, any cool dry place will do. You can even make two copies, store them in separate locations and have the same level of protection as many movie studios for media costs that are less than 6 months of Amazon storage costs.
LTO-5 tape drives can archive data at 140MB/s – that is much faster than even an average 2 disk drive RAID0 and orders of magnitude faster than trying to get your data down some pipe to cloud storage.
There are many reasons to use cloud storage – speed and cost are not among them today
Tom Goldberg
Cache-A Corporation
602 Park Point Drive
Golden, CO 80401
mailto:tom.goldberg@cache-a.com
https://cache-a.com