2018-07-03 4:27 GMT+02:00 Brad Fitzpatrick <[email protected]>: > Hello, > > I was wondering if it's possible or how best to add a DB & WAL to an OSD > retroactively? (Still using Luminous) > > I hurriedly created some HDD-backed bluestore OSDs without their WAL & DB > on SSDs, and then loaded them up with data. > > When I realized I forgot to use the SSD partitions for its WAL & DB, I > marked the first OSD out, let it drain, nuked it, and recreated it, and am > now waiting for it to re-populate. > > In the meantime, I've been searching for how to best add them > retroactively on the remaining OSDs. > > I found https://swamireddy.wordpress.com/2016/02/19/ceph- > how-to-add-the-ssd-journal/ which seems to describe how to add the DB, > but not the WAL. > > Hi Brad, these steps are for Filestore backed OSD's only. Afaik there currently isn't a procedure to seperate the DB/WAL after OSD creation, so your current method of marking out, drain and re-create is your only option.
Kind regards, Caspar > Any tips? > > Thanks! > > - Brad > > > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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