Re: [ceph-users] Advice saught

2014-01-29 Thread Schlacta, Christ
I can only comment I the log. I would recommend using three logs (6 disks as mirror pairs) per system, and add a crush map hierarchy level for cache drive so that any given pg will never mirror twice to the same log. That'll also reduce your failure domain. On Jan 29, 2014 4:26 PM, "Geraint Jones"

[ceph-users] Advice saught

2014-01-29 Thread Geraint Jones
Hi Guys We have the current config : 2 x Storage servers, 128gb RAM, dual E5-2609, LSI MegaRAID SAS 9271-4i, each server has 24 x 3tb Disks ­ these were originally set as 8 groups of 3 Disk RAID0 (we are slowly moving to one OSD one disk) We initially had the journals stored on an SSD, however af