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Support for shingled magnetic recording devices

Support for shingled magnetic recording devices

Posted Mar 29, 2014 20:32 UTC (Sat) by Cyberax (✭ supporter ✭, #52523)
In reply to: Support for shingled magnetic recording devices by giraffedata
Parent article: Support for shingled magnetic recording devices

> The last figures I saw were 5x cheaper. That's total cost (not just e.g. purchase price of some box), and assuming a tape-friendly application. That seems perfectly believable to me, but if you know of a study showing otherwise, do tell.
No way. The last time we checked (in 2013) the price difference was about 2x. The major advantage of tape was reliability - tape cartridges themselves contain no sensitive mechanic parts, not price.

LTO6 tapes are about $40 per tape (2.5Tb) when bought in bulk. Maybe $30 if you are really big. Hard drives are around $50 per 2Tb in bulk.

And that's without considering the cost of streamers (multiple $$$$), tape robots ($$$$$) and the storage software solution (shockingly, there are no good OpenSource hierarchical storage managers).

Of course, HDDs need some kind of SAN, but they are cheap these days. AoE/iSCSI solution for 1000 drives capable of 100Gb throughput can be bought for just under $30k and doesn't need any fancy software.


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