Re: replace dead SSD journal

[Josef Johansson <josef@xxxxxxxxxxx>]

Hi,

Did 6 other OSDs go down when re-adding?

/Josef

On 17 Apr 2015, at 18:49, Andrija Panic <andrija.panic@xxxxxxxxx> wrote:

12 osds down - I expect less work with removing and adding osd?

On Apr 17, 2015 6:35 PM, "Krzysztof Nowicki" <krzysztof.a.nowicki@xxxxxxxxx> wrote:

Why not just wipe out the OSD filesystem, run ceph-osd --mkfs with the existing OSD UUID, copy the keyring and let it populate itself?

pt., 17 kwi 2015 o 18:31 użytkownik Andrija Panic <andrija.panic@xxxxxxxxx> napisał:

Thx guys, thats what I will be doing at the end.

Cheers

On Apr 17, 2015 6:24 PM, "Robert LeBlanc" <robert@xxxxxxxxxxxxx> wrote:

Delete and re-add all six OSDs.

On Fri, Apr 17, 2015 at 3:36 AM, Andrija Panic <andrija.panic@xxxxxxxxx> wrote:

Hi guys,

I have 1 SSD that hosted 6 OSD's Journals, that is dead, so 6 OSD down, ceph rebalanced etc.

Now I have new SSD inside, and I will partition it etc - but would like to know, how to proceed now, with the journal recreation for those 6 OSDs that are down now.

Should I flush journal (where to, journals doesnt still exist...?), or just recreate journal from scratch (making symboliv links again: ln -s /dev/$DISK$PART /var/lib/ceph/osd/ceph-$ID/journal) and starting OSDs.

I expect the folowing procedure, but would like confirmation please:

rm /var/lib/ceph/osd/ceph-$ID/journal -f (sym link)
ln -s /dev/SDAxxx /var/lib/ceph/osd/ceph-$ID/journal
ceph-osd -i $ID --mkjournal
ll /var/lib/ceph/osd/ceph-$ID/journal
service ceph start osd.$ID

Any thought greatly appreciated !

Thanks,

--

Andrija Panić

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