Le 22/12/2015 09:42, yuyang a écrit :
Hello, everyone,
[snip snap]
Hi
> If the SSD failed or down, can the OSD work?
> Is the osd down or only can be read?
If you don't have a journal anymore, the OSD has already quit, as it
can't continue writing, nor it can assure data consistency, since writes
have probably been interrupted.
The Ceph's community general assumption for a dead journal, is a dead OSD.
But.
http://www.sebastien-han.fr/blog/2014/11/27/ceph-recover-osds-after-ssd-journal-failure/
How does this apply in reality?
Is the solution that Sébastien is proposing viable?
In most/all cases?
Will the OSD continue chugging along after this kind of surgery?
Is it necessary/suggested to deep scrub ASAP the OSD's placement groups?
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