On http://pve.proxmox.com/wiki/Storage:_Ceph there's a .conf file example:
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[mon]
[mds]
[osd]
osd journal = /srv/journal/osd.$id.journal ;only if you want put journal on a dedicated disk, like ssd
osd journal size = 1000
; uncomment the following line if you are mounting with ext4
; filestore xattr use omap = true
; uncomment if you want journal on tmpfs
;journal dio = false
"journal dio" is only set for tmpfs devices and not real devices? Seems like setting that to yes for all devices would help performance.
.
.
.
[mon]
[mds]
[osd]
osd journal = /srv/journal/osd.$id.journal ;only if you want put journal on a dedicated disk, like ssd
osd journal size = 1000
; uncomment the following line if you are mounting with ext4
; filestore xattr use omap = true
; uncomment if you want journal on tmpfs
;journal dio = false
"journal dio" is only set for tmpfs devices and not real devices? Seems like setting that to yes for all devices would help performance.