On Fri, Jun 30, 2017 at 8:31 AM, Martin Emrich <martin.emrich@xxxxxxxxxxx> wrote:
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)
why not give ceph-deploy a chance, It has options to specify for db and wal in command line. you dont have to worry about what options to pass to ceph-disk as it encapsulates that
ex: ceph-deploy osd create --bluestore --block-wal /dev/nvme0n1 --block-db /dev/nvme0n1 p30:sdb
ex: ceph-deploy osd create --bluestore --block-wal /dev/nvme0n1 --block-db /dev/nvme0n1 p30:sdb
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?
The document has fallen behind for manual deployment and ceph-deploy usage for bluestore as well, but if you use the above command, it will clearly throw out what it is doing and how ceph-disk is being called, those
are essentially manual steps that should go in document. I think we have a tracker for update which is pending for sometime.
Thanks for any hints,
Martin
_______________________________________________
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
