I come back here.
> I've recently added a host to my ceph cluster, using proxmox 'helpers'
> to add OSD, eg:
>
> pveceph createosd /dev/sdb -journal_dev /dev/sda5
>
> and now i've:
>
> root@blackpanther:~# ls -la /var/lib/ceph/osd/ceph-12
> totale 60
> drwxr-xr-x 3 root root 199 nov 21 17:02 .
> drwxr-xr-x 6 root root 4096 nov 21 23:08 ..
> -rw-r--r-- 1 root root 903 nov 21 17:02 activate.monmap
> -rw-r--r-- 1 root root 3 nov 21 17:02 active
> -rw-r--r-- 1 root root37 nov 21 17:02 ceph_fsid
> drwxr-xr-x 432 root root 12288 dic 1 18:21 current
> -rw-r--r-- 1 root root37 nov 21 17:02 fsid
> lrwxrwxrwx 1 root root 9 nov 21 17:02 journal -> /dev/sda5
> -rw--- 1 root root57 nov 21 17:02 keyring
> -rw-r--r-- 1 root root21 nov 21 17:02 magic
> -rw-r--r-- 1 root root 6 nov 21 17:02 ready
> -rw-r--r-- 1 root root 4 nov 21 17:02 store_version
> -rw-r--r-- 1 root root53 nov 21 17:02 superblock
> -rw-r--r-- 1 root root 0 nov 21 17:02 sysvinit
> -rw-r--r-- 1 root root 3 nov 21 17:02 whoami
>
> and all works as expected, only i suposed to find as a journal not the
> device (/dev/sda5) but the uuid (/dev/disk/by-uuid/).
>
> But seems that the cache partition does not have an UUID associated:
>
> root@blackpanther:~# ls -la /dev/disk/by-uuid/ | grep sda5
> root@blackpanther:~# blkid /dev/sda5
> /dev/sda5: PARTUUID="a222c6bf-05"
>
> I'm a but ''puzzled'' because if i've to add a disk ''before'' sda, all
> device name will change with, i suppose, unexpected result.
>
> I'm missing something? Thanks.
I was forced to change some journal, using some partition (MBR); i've
stopped osd, flushed old journal, changed symplink and then do a
'journal format':
root@deadpool:/var/lib/ceph/osd/ceph-6# ls -la
totale 64
drwxr-xr-x 3 root root 199 feb 6 17:45 .
drwxr-xr-x 6 root root 4096 dic 14 2016 ..
-rw-r--r-- 1 root root 751 dic 14 2016 activate.monmap
-rw-r--r-- 1 root root 3 dic 14 2016 active
-rw-r--r-- 1 root root37 dic 14 2016 ceph_fsid
drwxr-xr-x 378 root root 20480 feb 6 17:12 current
-rw-r--r-- 1 root root37 dic 14 2016 fsid
lrwxrwxrwx 1 root root 9 feb 6 17:45 journal -> /dev/sda5
-rw--- 1 root root56 dic 14 2016 keyring
-rw-r--r-- 1 root root21 dic 14 2016 magic
-rw-r--r-- 1 root root 6 dic 14 2016 ready
-rw-r--r-- 1 root root 4 dic 14 2016 store_version
-rw-r--r-- 1 root root53 dic 14 2016 superblock
-rw-r--r-- 1 root root 0 feb 6 17:10 sysvinit
-rw-r--r-- 1 root root 2 dic 14 2016 whoami
root@deadpool:/var/lib/ceph/osd/ceph-6# ceph-osd -i 6 --mkjournal
2019-02-06 17:45:35.030359 7ff679c24880 -1 journal check: ondisk fsid
---- doesn't match expected
70357923-3227-4d57-980f-92b8c853dc76, invalid (someone else's?) journal
2019-02-06 17:45:35.038522 7ff679c24880 -1 created new journal
/var/lib/ceph/osd/ceph-6/journal for object store /var/lib/ceph/osd/ceph-6
Clearly i've changed the journal partition by hand (eg, direct link) so
i'm expecting that link is 'direct to partition'; but, and see the
warning about fsid, still there's no 'id' associated to that partition
(eg, no link in /dev/disk/by-*/).
If i rerun the 'mkjournal':
root@deadpool:/var/lib/ceph/osd/ceph-6# ceph-osd -i 6 --mkjournal
2019-02-06 17:45:37.621855 7f3391377880 -1 created new journal
/var/lib/ceph/osd/ceph-6/journal for object store /var/lib/ceph/osd/ceph-6
So seems that effectively journal partition get 'tagged' in someway.
But i'm still confused... using ID link in journal partitions works
only for GPO partitioning?
Thanks.
--
dott. Marco Gaiarin GNUPG Key ID: 240A3D66
Associazione ``La Nostra Famiglia'' http://www.lanostrafamiglia.it/
Polo FVG - Via della Bontà, 7 - 33078 - San Vito al Tagliamento (PN)
marco.gaiarin(at)lanostrafamiglia.it t +39-0434-842711 f +39-0434-842797
Dona il 5 PER MILLE a LA NOSTRA FAMIGLIA!
http://www.lanostrafamiglia.it/index.php/it/sostienici/5x1000
(cf 00307430132, categoria ONLUS oppure RICERCA SANITARIA)
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