Johannes Klarenbeek пишет: >> >> 1) i read somewhere that it is recommended to have one OSD per disk in a >> production environment. >> is this also the maximum disk per OSD or could i use multiple disks per >> OSD? and why? > > you could use multiple disks for one OSD if you used some striping and > abstract the disk (like LVM, MDRAID, etc). But it wouldn't make sense. One > OSD writes into one filesystem, that is usually one disk in a production > environment. Using RAID under it wouldn't increase neither reliability nor > performance drastically.
I see some sense in RAID 0: single ceph-osd daemon per node (but still disk-per-osd self). But if you have relative few [planned] cores per task on node - you can think about it. -- WBR, Dzianis Kahanovich AKA Denis Kaganovich, http://mahatma.bspu.unibel.by/ _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
