Am 14.08.2014 13:29, schrieb Guang Yang: > Hi cephers, > Most recently I am drafting the run books for OSD disk replacement, I think the rule of thumb is to reduce data migration (recover/backfill), and I thought the following procedure should achieve the purpose: > 1. ceph osd out osd.XXX (mark it out to trigger data migration) > 2. ceph osd rm osd.XXX > 3. ceph auth rm osd.XXX > 4. provision a new OSD which will take XXX as the OSD id and migrate data back. > > With the above procedure, the crush weight of the host never changed so that we can limit the data migration only for those which are neccesary. > > Does it make sense? > Looks sane to me, and i remember that i did it that way a few times. -- Mit freundlichen Gr??en, Florian Wiessner Smart Weblications GmbH Martinsberger Str. 1 D-95119 Naila fon.: +49 9282 9638 200 fax.: +49 9282 9638 205 24/7: +49 900 144 000 00 - 0,99 EUR/Min* http://www.smart-weblications.de -- Sitz der Gesellschaft: Naila Gesch?ftsf?hrer: Florian Wiessner HRB-Nr.: HRB 3840 Amtsgericht Hof *aus dem dt. Festnetz, ggf. abweichende Preise aus dem Mobilfunknetz
 |