; ; Sample ceph ceph.conf file. ; ; This file defines cluster membership, the various locations ; that Ceph stores data, and any other runtime options. ; If a 'host' is defined for a daemon, the start/stop script will ; verify that it matches the hostname (or else ignore it). If it is ; not defined, it is assumed that the daemon is intended to start on ; the current host (e.g., in a setup with a startup.conf on each ; node). ; global [global] ; enable secure authentication ;auth supported = cephx ; monitors ; You need at least one. You need at least three if you want to ; tolerate any node failures. Always create an odd number. [mon] mon data = /opt/data/mon$id ; logging, for debugging monitor crashes, in order of ; their likelihood of being helpful :) ;debug ms = 1 ;debug mon = 20 ;debug paxos = 20 ;debug auth = 20 [mon0] host = ubuntu-client mon addr = 172.16.10.68:6789 ;[mon1] ;host = ubuntu-client ;mon addr = 127.0.0.1:6789 ;[mon2] ;host = gamma ;mon addr = 192.168.0.12:6789 ; mds ; You need at least one. Define two to get a standby. [mds] ; where the mds keeps it's secret encryption keys keyring = /opt/data/keyring.$name ; mds logging to debug issues. ;debug ms = 1 ;debug mds = 20 [mds.alpha] host = ubuntu-client [mds.beta] host = ubuntu-client ; osd ; You need at least one. Two if you want data to be replicated. ; Define as many as you like. [osd] ; This is where the btrfs volume will be mounted. osd data = /opt/data/osd$id ; Ideally, make this a separate disk or partition. A few ; hundred MB should be enough; more if you have fast or many ; disks. You can use a file under the osd data dir if need be ; (e.g. /data/osd$id/journal), but it will be slower than a ; separate disk or partition. osd journal = /opt/data/osd$id/journal osd journal size = 10000 ; osd logging to debug osd issues, in order of likelihood of being ; helpful ;debug ms = 1 ;debug osd = 20 ;debug filestore = 20 ;debug journal = 20 [osd0] host = ubuntu-client ; if 'btrfs devs' is not specified, you're responsible for ; setting up the 'osd data' dir. if it is not btrfs, things ; will behave up until you try to recover from a crash (which ; usually fine for basic testing). ; btrfs devs = /dev/sdx [osd1] host = ubuntu-client ;btrfs devs = /dev/sdy ;[osd2] ;host = ubuntu-client ;btrfs devs = /dev/sdx ;[osd3] ;host = eta ;btrfs devs = /dev/sdy