On Fri, May 10, 2019 at 2:43 PM Lazuardi Nasution <mrxlazuardin@xxxxxxxxx> wrote: > > Hi, > > Let's say I have following devices on a host. > > /dev/sda > /dev/sdb > /dev/nvme0n1 > > How can I do ceph-volume batch which create bluestore OSD on HDDs and NVME (devided to be 4 OSDs) and put block.db of HDDs on the NVME too? Following are what I'm expecting on created LVs. You can, but it isn't easy (batch is meant to be opinionated) and what you are proposing is a bit of an odd scenario that doesn't fit well with what the batch command will want to do, which is: create OSDs from a list of devices and do the most optimal layout possible. I would suggest strongly to just use `ceph-volume lvm create` with pre-made LVs that you can pass into it to arrange things in the way you need. However, you might still be able to force batch here by defining the block.db sizes in ceph.conf, otherwise ceph-volume falls back to "as large as possible". Having defined a size (say, 10GB) you can do this: ceph-volume lvm batch /dev/sda /dev/sdb /dev/nvme0n1 ceph-volume lvm batch --osds-per-device=3 /dev/nvme0n1 Again, I highly recommend against this setup and trying to make batch do this - not 100% it will work... > > /dev/sda: DATA0 > /dev/sdb: DATA1 > /dev/nvme0n1: DB0 | DB1 | DATA2 | DATA3 | DATA4 | DATA5 > > Best regards, > _______________________________________________ > 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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