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But for how many years is unpowered data integrity guaranteed for modern enterprise flash storage? Magnetic media excels at archival. In fact, plain old paper d
by paavoova 8y ago
But for how many years is unpowered data integrity guaranteed for modern enterprise flash storage? Magnetic media excels at archival. In fact, plain old paper does, too, provided it's stored properly. I bring this up only because storage doesn't necessarily require on-demand retrieval, and so flash storage may not be much use in those cases.
- sliken 8y agoDunno, had a room with 120 tapes and 100 spinning disks or so. The room hit 110F or so during an AC failure. 120 tapes died, zero disks. Actually I tried only 10 or so, before giving up. Tapes do seem much more sensitive, the storage temperature (non-operating) was the same as the operating temp of the disks. Don't tapes have issues with print through and adhesion if not regularly used? I seem to recall best practices including something like annual seek to the end and seek to the beginning. Seems pretty similar to spinning disks. I'm less sure of flash drives on a shelf.
- jjeaff 8y agoThis seems to indicate that these tapes are safe up to 120c for short periods of time. But that they should be archived at no more than 77. https://www.ibm.com/support/knowledgecenter/en/STCMML8/com.ibm.storage.ts3500.doc/ipg_3584_meesi.html https://www.ibm.com/support/knowledgecenter/en/STCMML8/com.i...
- zaarn 8y agoFlash drives guarantee data integrity for up to a year (JEDEC), so you'd have to spin them up and read data, though I'm unsure if this is sufficient on flash.