Hi, Le 07/01/2017 à 04:48, kevin parrikar a écrit : > i really need some help here :( > > replaced all 7.2 rpm SAS disks with new Samsung 840 evo 512Gb SSD with > no seperate journal Disk .Now both OSD nodes are with 2 ssd disks > with a replica of *2* . > Total number of OSD process in the cluster is *4*.with all SSD.
These SSDs are not designed for the kind of usage you are putting them through. The Evo and even the Pro line from Samsung can't write both fast and securely (ie : you can write fast and lose data if you get a power outage or you can write slow and keep your data, Ceph always makes sure your data is recoverable before completing a write : it is slow with these SSDs). Christian already warned you about endurance and reliability, you just discovered the third problem : speed. Lionel
_______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
