I would not be running ceph on ssds without powerloss protection. I delivers a potential data loss scenario
Jesper
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Thursday, 19 December 2019, 08.32 +0100 from Виталий Филиппов <vitalif@xxxxxxxxxx>:
https://yourcmc.ru/wiki/Ceph_performance
https://docs.google.com/spreadsheets/d/1E9-eXjzsKboiCCX-0u0r5fAjjufLKayaut_FOPxYZjc19 декабря 2019 г. 0:41:02 GMT+03:00, Sinan Polat <sinan@xxxxxxxx> пишет:Hi,
I am aware that https://www.sebastien-han.fr/blog/2014/10/10/ceph-how-to-test-if-your-ssd-is-suitable-as-a-journal-device/ holds a list with benchmark of quite some different ssd models. Unfortunately it doesn't have benchmarks for recent ssd models.
A client is planning to expand a running cluster (Luminous, FileStore, SSD only, Replicated). I/O Utilization is close to 0, but capacity wise the cluster is almost nearfull. To save costs the cluster will be expanded will customer-grade SSD's, but I am unable to find benchmarks of recent SSD models.
Does anyone has experience with Samsung 860 EVO, 860 PRO and Crucial MX500 in a Ceph cluster?
Thanks!
Sinan
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Vitaliy Filippov_______________________________________________
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