Hi all, Thanks for the replies. I am not worried about their lifetime. We will be adding only 1 SSD disk per physical server. All SSD’s are enterprise drives. If the added consumer grade disk will fail, no problem.
I am more curious regarding their I/O performance. I do want to have 50% drop in performance. So anyone any experience with 860 EVO or Crucial MX500 in a Ceph setup? Thanks! > Op 19 dec. 2019 om 19:18 heeft Mark Nelson <mnel...@redhat.com> het volgende > geschreven: > > The way I try to look at this is: > > > 1) How much more do the enterprise grade drives cost? > > 2) What are the benefits? (Faster performance, longer life, etc) > > 3) How much does it cost to deal with downtime, diagnose issues, and replace > malfunctioning hardware? > > > My personal take is that enterprise drives are usually worth it. There may be > consumer grade drives that may be worth considering in very specific > scenarios if they still have power loss protection and high write durability. > Even when I was in academia years ago with very limited budgets, we got > burned with consumer grade SSDs to the point where we had to replace them > all. You have to be very careful and know exactly what you are buying. > > > Mark > > >> On 12/19/19 12:04 PM, jes...@krogh.cc wrote: >> I dont think “usually” is good enough in a production setup. >> >> >> >> Sent from myMail for iOS >> >> >> Thursday, 19 December 2019, 12.09 +0100 from Виталий Филиппов >> <vita...@yourcmc.ru>: >> >> Usually it doesn't, it only harms performance and probably SSD >> lifetime >> too >> >> > I would not be running ceph on ssds without powerloss protection. I >> > delivers a potential data loss scenario >> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.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 _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
