s/aren't/are/ :)
Met vriendelijke groet, Caspar Smit Systemengineer SuperNAS Dorsvlegelstraat 13 1445 PA Purmerend t: (+31) 299 410 414 e: caspars...@supernas.eu w: www.supernas.eu 2018-03-01 16:31 GMT+01:00 David Turner <drakonst...@gmail.com>: > This aspect of osds has not changed from filestore with SSD journals to > bluestore with DB and WAL soon SSDs. If the SSD fails, all osds using it > aren't lost and need to be removed from the cluster and recreated with a > new drive. > > You can never guarantee data integrity on bluestore or filestore if any > media of the osd fails completely. > > > On Thu, Mar 1, 2018, 10:24 AM Hervé Ballans <herve.ball...@ias.u-psud.fr> > wrote: > >> Hello, >> >> With Bluestore, I have a couple of questions regarding the case of >> separate partitions for block.wal and block.db. >> >> Let's take the case of an OSD node that contains several OSDs (HDDs) and >> also contains one SSD drive for storing WAL partitions and an another >> one for storing DB partitions. In this configuration, from my >> understanding (but I may be wrong), each SSD drive appears as a SPOF for >> the entire node. >> >> For example, what happens if one of the 2 SSD drives crashes (I know, >> it's very rare but...) ? >> >> In this case, are the bluestore data on all the OSDs of the same node >> also lost ? >> >> I guess so, but as a result, what is the recovery scenario ? Will it be >> necessary to entirely recreate the node (OSDs + block.wal + block.db) to >> rebuild all the replicas from the other nodes on it ? >> >> Thanks in advance, >> Hervé >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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