Hi!
I'd like to set up new OSDs with bluestore: the real data ("block") on a
spinning disk, and DB+WAL on a SSD partition.
But I do not use ceph-deploy, and never used ceph-disk (I set up the filestore
OSDs manually).
Google tells me that ceph-disk does not (yet) support splitting the components
across multiple block devices, I also had no luck while attempting it anyways.
(using Ceph 12.1 RC1)
I just can't find documentation on how to set up a bluestore OSD manually:
* How do I "prepare" the block, block.wal and block.db blockdevices? Just
directing ceph-osd to the block devices via ceph.conf does not seem to be
enough.
* Do bluestore OSDs still use/need a separate journal file/device? Or ist
that replaced by the WAL?
http://docs.ceph.com/docs/master/ also has not very much information on using
bluestore, is this documentation deprecated?
Thanks for any hints,
Martin
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