We are very happy with S3610s in our cluster. We had to flash a new firmware because of latency spikes (NCQ-related), but had zero problems after that... Just beware of HBA compatibility, even in passthrough mode some crappy firmwares can try and be smart about what you can do (LSI-Avago, I'm looking your way for crippling TRIM, seriously WTH).
Jan > On 25 Feb 2016, at 14:48, Nick Fisk <n...@fisk.me.uk> wrote: > > There’s two factors really > > 1. Suitability for use in ceph > 2. Number of people using them > > For #1, there are a number of people using various different drives, so lots > of options. The blog articled linked is a good place to start. > > For #2 and I think this is quite important. Lots of people use the S3xx’s > intel drives. This means any problems you face will likely have a lot of > input from other people. Also you are less likely to face surprises, as most > usage cases have already been covered. > > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com > <mailto:ceph-users-boun...@lists.ceph.com>] On Behalf Of Robert LeBlanc > Sent: 25 February 2016 05:56 > To: Shinobu Kinjo <ski...@redhat.com <mailto:ski...@redhat.com>> > Cc: ceph-users <ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com>> > Subject: Re: [ceph-users] List of SSDs > > We are moving to the Intel S3610, from our testing it is a good balance > between price, performance and longevity. But as with all things, do your > testing ahead of time. This will be our third model of SSDs for our cluster. > The S3500s didn't have enough life and performance tapers off add it gets > full. The Micron M600s looked good with the Sebastian journal tests, but once > in use for a while go downhill pretty bad. We also tested Micron M500dc > drives and they were on par with the S3610s and are more expensive and are > closer to EoL. The S3700s didn't have quite the same performance as the > S3610s, but they will last forever and are very stable in terms of > performance and have the best power loss protection. > > Short answer is test them for yourself to make sure they will work. You are > pretty safe with the Intel S3xxx drives. The Micron M500dc is also pretty > safe based on my experience. It had also been mentioned that someone has had > good experience with a Samsung DC Pro (has to have both DC and Pro in the > name), but we weren't able to get any quick enough to test so I can't vouch > for them. > > Sent from a mobile device, please excuse any typos. > > On Feb 24, 2016 6:37 PM, "Shinobu Kinjo" <ski...@redhat.com > <mailto:ski...@redhat.com>> wrote: > Hello, > > There has been a bunch of discussion about using SSD. > Does anyone have any list of SSDs describing which SSD is highly recommended, > which SSD is not. > > Rgds, > Shinobu > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > <http://xo4t.mj.am/link/xo4t/x0557gim2n74/1/sbo9Blye4QJEav_CN9NrlA/aHR0cDovL2xpc3RzLmNlcGguY29tL2xpc3RpbmZvLmNnaS9jZXBoLXVzZXJzLWNlcGguY29t> > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com>
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
