Basically i think endurance is most important for a ceph journal，since the workload for journal is full write，you can easily caculate how long your ssd will burn out.. even we assume your ssd only run at 100MB/s in average，you will burn out 8TB/day and 240TB/month DCS 3500 is definitely not useable in this case unless you want to swap your ssd every single month.. 在 2013-7-22，22:47，"Mark Nelson" <mark.nelson@xxxxxxxxxxx> 写道： > On 07/22/2013 09:30 AM, Gandalf Corvotempesta wrote: >> 2013/7/22 Mark Nelson <mark.nelson@xxxxxxxxxxx>: >>> I don't have any in my test lab, but the DC S3700 continues to look like a >>> good option and has a great reputation, but might be a bit pricey. From that >>> article it looks like the Micron P400m might be worth looking at too, but >>> seems to be a bit slower. >> >> DC S3500 should be the same (for a journal) but at lower price. > > At least based on this: > > http://www.hardcoreware.net/intel-dc-s3500-480gb-ssd-review/ > > The write speeds are lower at the same capacity and the endurance appears to be significantly lower since the S3500 isn't using the HET cells. > > Personally I'm still thinking the 200GB S3700 is the way to go, but I haven't looked too closely at the micron drive or other options out there. Something like the Marvell Dragonfly could be very interesting for larger nodes, but I haven't tested it yet. > > Mark > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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