Re: How to set up bluestore manually?

Martin Emrich <martin.emrich@xxxxxxxxxxx> · Fri, 7 Jul 2017 09:58:22 +0000

Hi all!

I got quite far till now, and I documented my progress here:

https://github.com/MartinEmrich/kb/blob/master/ceph/Manual-Bluestore.md

Cheers,

Martin 

Von: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx]
Im Auftrag von Martin Emrich

Gesendet: Freitag, 30. Juni 2017 17:32

An: ceph-users@xxxxxxxxxxxxxx

Betreff:  How to set up bluestore manually?

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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