bluestore doesn't have a journal like the filestore does, but there is the WAL (Write-Ahead Log) which is looks like a journal but works differently. You can (or must, depending or your needs) have SSDs to serve this WAL (and for Rocks DB).
Regards, Webert Lima DevOps Engineer at MAV Tecnologia *Belo Horizonte - Brasil* *IRC NICK - WebertRLZ* On Sun, Jul 8, 2018 at 11:58 AM Satish Patel <satish....@gmail.com> wrote: > Folks, > > I'm just reading from multiple post that bluestore doesn't need SSD > journel, is that true? > > I'm planning to build 5 node cluster so depending on that I purchase SSD > for journel. > > If it does require SSD for journel then what would be the best vendor and > model which last long? Any recommendation > > Sent from my iPhone > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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