Alexandre DERUMIER <aderumier <at> odiso.com> writes:
>
> Hi, just defined osds in ceph.conf, they mount each disk in correct mountpoint.
>
> this example :
> 1st server :
> /dev/sdb1 -> /data/osd0
> /dev/sdc1 -> /data/osd1
> /dev/sdd1 -> /data/osd2
> ....
> same for journal.(you can use differents disk for journal or use another
partition on same disk)
>
> ceph.conf
> [osd]
>
> osd data = /data/osd$id
> osd journal = /data/osd$id/journal
> osd journal size = 512
>
> [osd.0]
> host = ceph-node-1
>
> [osd.1]
> host = ceph-node-1
>
> [osd.2]
> host = ceph-node-1
>
> [osd.3]
> host = ceph-node-2
>
> [osd.4]
> host = ceph-node-2
>
> ----- Mail original -----
>
> De: "chandrashekhar" <chandubigc <at> gmail.com>
> À: ceph-devel <at> vger.kernel.org
> Envoyé: Lundi 28 Mai 2012 08:19:17
> Objet: OSD per disk.
>
> Hi,
>
> I want to setup a ceph cluster with 4 osds ( one OSD per disk), 2 mons, 1
> mds. Please help me to configure this.
>
> I have a machine with following hardware:
>
> 4 hard disks ( each 500GB).
>
> /dev/sda - 500G ( OS )
> /dev/sdb - 500G
> /dev/sdc - 500G
> /dev/sdd - 500G
>
> OS: ubuntu 12.O4 server ( 64 bit )
>
> Thanks,
> Chandra.
>
Thanks Alexandre, I created four directories in /data (osd0,osd1,osd2,osd3)
and mounted as below:
/dev/sdb1 -> /data/osd1
/dev/sdc1 -> /data/osd2
/dev/sdd1 -> /data/osd3
But when I start ceph its starting mons and md daemons but not osds. Please help
me to get this working.
>ceph -w
2012-05-28 14:43:23.756895 pg v2: 792 pgs: 792 creating; 0 bytes data, 0 KB
used, 0 KB / 0 KB avail
2012-05-28 14:43:23.762160 mds e1: 0/0/1 up
2012-05-28 14:43:23.762296 osd e1: 0 osds: 0 up, 0 in
2012-05-28 14:43:23.762586 log 2012-05-28 14:24:15.391671 mon.0
192.168.7.10:6789/0 4 : [INF] mon.a@0 won leader election with quorum 0,1
2012-05-28 14:43:23.762741 mon e1: 2 mons at
{a=192.168.7.10:6789/0,b=192.168.7.10:6790/0}
Here is my ceph.conf:
-------------------------------------------------
[global]
auth supported = cephx
keyring = /etc/ceph/keyring.admin
[mon]
mon data = /data/mon.$id
[mds]
[osd]
osd data = /data/osd$id
osd journal = /data/osd$id/osd.$id.journal
osd journal size = 1000
[mon.a]
host = testnode
mon addr = 192.168.7.10:6789
[mon.b]
host = testnode
mon addr = 192.168.7.10:6790
[osd.0]
host = testnode
[osd.1]
host = testnode
[osd.2]
host = testnode
[osd.3]
host = testnode
[mds.a]
host = testnode
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