As long as your fault domain is host (or even rack) you're good, just take out the entire host and recreate all osd's on it. ----- Original Message ----- From: "Robert Stanford" <rstanford8896@xxxxxxxxx> To: "ceph-users" <ceph-users@xxxxxxxxxxxxxx> Sent: Monday, August 6, 2018 8:39:07 PM Subject: Upgrading journals to BlueStore: a conundrum According to the instructions to upgrade a journal to BlueStore ( http://docs.ceph.com/docs/master/rados/operations/bluestore-migration/), the OSD that uses the journal is destroyed and recreated. I am using SSD journals, and want to use them with BlueStore. Reusing the SSD requires zapping the disk (ceph-disk zap). But this would take down all OSDs that use this journal, not just the one-at-a-time that I destroy and recreate when following the upgrade instructions. How then can one upgrade journals to BlueStore when there is more than one journal on the same disk? R _______________________________________________ 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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