On 5 February 2015 at 00:12, Toby Corkindale <[email protected]> wrote: > On 4 February 2015 at 16:19, Russell Coker <[email protected]> wrote: >> On Tue, 3 Feb 2015 04:02:00 AM Toby Corkindale wrote: >>> That's >61 terabytes written by the o/s; wear leveling is up to nearly >>> 3000, which is getting on for a bit. Still no sectors getting remapped >>> though, which implies no failures. >> >> http://etbe.coker.com.au/2014/04/27/swap-breaking-ssd/ >> >> Last year I blogged about the amount of writes performed by workstations I >> run. The most was 128G in a day for atypical use (torrent download and >> filesystem balance) and the most for typical use was 24G in a day. If the >> SSDs >> I'm using are only capable of 61TB of writes then that would be 7 years of >> typical use or 1.3 years of atypical use before they have problems. > > What kind of lame SSD can only cope with 60TB of writes? > By all accounts it sounds like you should get far, far more than that > out of the decent ones! See previous post linking to people getting a > couple of petabytes per drive :) > True, not all will go that far, but in the endurance test that seemed > the most thorough, even the earliest-to-die drive made it to 750TB. > (And that was an Intel that had a set lifespan; it would probably have > gone on a lot further otherwise)
Serendipitously an article on this subject has appeared in the latest edition of APC in the news section. They report that the TechReport have been testing a batch of SSDs for over a year. Using disks from Corsair, Intel's 335 series, Kingston HyperX 3K and Samsung's 840 series they've been hitting them with 24/7 reads and writes. The two left standing (Kingston and Samsung) have passed 2 *petabytes* of writes and are still going strong. The 2PB is apparently equivalent to 1000 years of real-world use. The article does say that luck of the draw maybe be factor with the first HyperX 3K dying after 720TB -- Colin Fee [email protected] _______________________________________________ luv-main mailing list [email protected] http://lists.luv.asn.au/listinfo/luv-main
