-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 With a fresh disk, you will need to remove the old key in ceph (ceph auth del osd.X) and the old osd (ceph osd rm X), but I think you can leave the CRUSH map alone (don't do ceph osd crush rm osd.X) so that there isn't any additional data movement (if there aren't any available OSD numbers less than the OSD being replaced, it will get the same ID. There may also be a way to specify an ID, but I haven't used it). Then when you add the new disk in, it only backfills what the previous disk had, unless the size is different, then it will take on more or less and shuffle some things around the cluster. -----BEGIN PGP SIGNATURE----- Version: Mailvelope v1.3.6 Comment: https://www.mailvelope.com wsFcBAEBCAAQBQJW1cZBCRDmVDuy+mK58QAAm9EQAMVOnCOrBkqGaczy5+ds yplotd9kKt/eyhp1nSgPJD+4RdOVQjoL4VVLtCfApXcMfxHkW/vBjpOWD1Bh l14NDjCzpkXM5HpHqQkiel/7thcN45u/Z7wSX8T+x9ontYn1Bv0CfI/6qaFb DmIYdAGjdLgWKpORyeN1WjgrU5DzUbCMHw/3sLfieVpoYsh91dMuxt33366z mcMQ6RYIE/5xpm8LkTsjYkmnl7Xes5fGsIAlx6kJDHpAoBBWEfstjgtCXIBt PgDnBJ/SwisAQKXuQOZg87/3OE+qFQUyILwFE3USD3ugx8xvo1aUGnerY/mT 8rUNfFLCPLhdiAp1fr2kkQW/SfV7spkNkZ/v99J/9dEwSj2pgJ7iHMGNr/Em K3oLezrm7NO2RHsMrn/pz82bO1CSzHrRQ5Aq7Re2r48zYeFxSgvcbMk6Ogzh rDPb2q+QEw/UbIuotl09ab3OGCjzXxhfDIQ44iEUEj0l2Cl5MQQcakdYakoC WCPaqIN7ocqiWnQPY/RnSXuhUgsd8uTBtxcXtHp+y0feAf/80nxc3dFWDfiK 8sKmt+rHoBQKQz0yhc0A0YqM8vnWYatVrVh1+SZe7iJE3/qyglNFmbJQ0O54 au/AJ7OqEy1MnJ06fIaLbSIQMXXMWdEqcib2gIKeunhLDkwoUbi+JRJLBY5X ITts =yIjM -----END PGP SIGNATURE----- ---------------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Mon, Feb 29, 2016 at 10:29 PM, Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx> wrote: > I was looking at replacing an osd drive in place as per the procedure here: > > http://www.spinics.net/lists/ceph-users/msg05959.html > > "If you are going to replace the drive immediately, set the “noout” flag. > Take the OSD “down” and replace drive. Assuming it is mounted in the same > place as the bad drive, bring the OSD back up. This will replicate exactly > the same PGs the bad drive held back to the replacement drive." > > > > But the new drive mount will be blank - what happens with the journal, > keyring etc? does starting the OSD process recreate them automatically? > > > thanks, > > -- > Lindsay Mathieson > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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