Hi Jaroslaw,
I tried that (using /dev/nvme0n1), but no luck:
ceph_deploy.osd][ERROR ] Failed to execute command:
/usr/sbin/ceph- volume --cluster ceph lvm create --bluestore
--data /dev/sdb --block.wal /dev/nvme0n1
When I run "/usr/sbin/ceph-volume ..." on the storage node, it fails
with:
--> blkid could not detect a PARTUUID for device: /dev/nvme0n1
There is an LVM PV on /dev/nvme0n1p1 (for the node OS), could
that be a problem?
I'd be glad for any advice. If all else fails, I should be fine
if I create a 10GB DB partition for each ODS manually, right?
Cheers,
Oliver
On 11.05.2018 15:40, Jaroslaw Owsiewski wrote:
> Hi,
>
>
> ceph-deploy is smart enough:
>
> ceph-deploy --overwrite-conf osd prepare --bluestore --block-db
/dev/nvme0n1 --block-wal /dev/nvme0n1 hostname:/dev/sd{b..m}
>
> Working example.
>
> $ lsblk
> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> sda 8:0 0 278.9G 0 disk
> └─sda1 8:1 0 278.9G 0 part /
> sdb 8:16 0 9.1T 0 disk
> ├─sdb1 8:17 0 100M 0 part /var/lib/ceph/osd/ceph-204
> └─sdb2 8:18 0 9.1T 0 part
> sdc 8:32 0 9.1T 0 disk
> ├─sdc1 8:33 0 100M 0 part /var/lib/ceph/osd/ceph-205
> └─sdc2 8:34 0 9.1T 0 part
> sdd 8:48 0 9.1T 0 disk
> ├─sdd1 8:49 0 100M 0 part /var/lib/ceph/osd/ceph-206
> └─sdd2 8:50 0 9.1T 0 part
> sde 8:64 0 9.1T 0 disk
> ├─sde1 8:65 0 100M 0 part /var/lib/ceph/osd/ceph-207
> └─sde2 8:66 0 9.1T 0 part
> sdf 8:80 0 9.1T 0 disk
> ├─sdf1 8:81 0 100M 0 part /var/lib/ceph/osd/ceph-208
> └─sdf2 8:82 0 9.1T 0 part
> sdg 8:96 0 9.1T 0 disk
> ├─sdg1 8:97 0 100M 0 part /var/lib/ceph/osd/ceph-209
> └─sdg2 8:98 0 9.1T 0 part
> sdh 8:112 0 9.1T 0 disk
> ├─sdh1 8:113 0 100M 0 part /var/lib/ceph/osd/ceph-210
> └─sdh2 8:114 0 9.1T 0 part
> sdi 8:128 0 9.1T 0 disk
> ├─sdi1 8:129 0 100M 0 part /var/lib/ceph/osd/ceph-211
> └─sdi2 8:130 0 9.1T 0 part
> sdj 8:144 0 9.1T 0 disk
> ├─sdj1 8:145 0 100M 0 part /var/lib/ceph/osd/ceph-212
> └─sdj2 8:146 0 9.1T 0 part
> sdk 8:160 0 9.1T 0 disk
> ├─sdk1 8:161 0 100M 0 part /var/lib/ceph/osd/ceph-213
> └─sdk2 8:162 0 9.1T 0 part
> sdl 8:176 0 9.1T 0 disk
> ├─sdl1 8:177 0 100M 0 part /var/lib/ceph/osd/ceph-214
> └─sdl2 8:178 0 9.1T 0 part
> sdm 8:192 0 9.1T 0 disk
> ├─sdm1 8:193 0 100M 0 part /var/lib/ceph/osd/ceph-215
> └─sdm2 8:194 0 9.1T 0 part
> nvme0n1 259:0 0 349.3G 0 disk
> ├─nvme0n1p1 259:2 0 1G 0 part
> ├─nvme0n1p2 259:4 0 576M 0 part
> ├─nvme0n1p3 259:1 0 1G 0 part
> ├─nvme0n1p4 259:3 0 576M 0 part
> ├─nvme0n1p5 259:5 0 1G 0 part
> ├─nvme0n1p6 259:6 0 576M 0 part
> ├─nvme0n1p7 259:7 0 1G 0 part
> ├─nvme0n1p8 259:8 0 576M 0 part
> ├─nvme0n1p9 259:9 0 1G 0 part
> ├─nvme0n1p10 259:10 0 576M 0 part
> ├─nvme0n1p11 259:11 0 1G 0 part
> ├─nvme0n1p12 259:12 0 576M 0 part
> ├─nvme0n1p13 259:13 0 1G 0 part
> ├─nvme0n1p14 259:14 0 576M 0 part
> ├─nvme0n1p15 259:15 0 1G 0 part
> ├─nvme0n1p16 259:16 0 576M 0 part
> ├─nvme0n1p17 259:17 0 1G 0 part
> ├─nvme0n1p18 259:18 0 576M 0 part
> ├─nvme0n1p19 259:19 0 1G 0 part
> ├─nvme0n1p20 259:20 0 576M 0 part
> ├─nvme0n1p21 259:21 0 1G 0 part
> ├─nvme0n1p22 259:22 0 576M 0 part
> ├─nvme0n1p23 259:23 0 1G 0 part
> └─nvme0n1p24 259:24 0 576M 0 part
>
> Regards
>
> --
> Jarek
>
> 2018-05-11 15:35 GMT+02:00 Oliver Schulz
<oliver.schulz@xxxxxxxxxxxxxx <mailto:oliver.schulz@xxxxxxxxxxxxxx>>:
>
> Dear Ceph Experts,
>
> I'm trying to set up some new OSD storage nodes, now with
> bluestore (our existing nodes still use filestore). I'm
> a bit unclear on how to specify WAL/DB devices: Can
> several OSDs share one WAL/DB partition? So, can I do
>
> ceph-deploy osd create --bluestore --osd-db=/dev/nvme0n1p2
> --data=/dev/sdb HOSTNAME
>
> ceph-deploy osd create --bluestore --osd-db=/dev/nvme0n1p2
> --data=/dev/sdc HOSTNAME
>
> ...
>
> Or do I need to use osd-db=/dev/nvme0n1p2 for data=/dev/sdb,
> osd-db=/dev/nvme0n1p3 for data=/dev/sdc, and so on?
>
> And just to make sure - if I specify "--osd-db", I don't need
> to set "--osd-wal" as well, since the WAL will end up on the
> DB partition automatically, correct?
>
>
> Thanks for any hints,
>
> Oliver
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