[Deepsea-users] New storage profile proposals
jfajerski at suse.com
Fri Apr 28 09:42:02 MDT 2017
I have pushed the basic functionality of the new proposal process to this
I would like to encourage everyone to play with it a bit and share their
Most of the implementation is in the proposal runner and can be used without it
interfering with the way things work currently. That being said, this new
proposal process is not fit for productions usage just yet.
To get the new runner and module run the following on the master:
git clone https://github.com/SUSE/deepsea
git checkout propose-custom-ratios
salt '*' state.apply ceph.sync
Now you can run 'salt-run proposal.peek' and the runner will return a storage
profile proposal. This proposal can be influenced by a number of parameters. I
have tried to document everything, which can be called via 'salt-run
proposal.help'. Bare in mind, that this is still very much under development, so
the docs might be incomplete or just not bring the point across very well. Also
I don't do a lot of parameter validation just yet.
After you have played around a bit with the peek method you can write out the
proposal user 'salt-run proposal.populate'. This will write the storage profile
files to /srv/pillar/ceph/proposal/profile-default/*.
The proposal.populate method can be run multiple times. It will not overwrite
existing files but with the help of that 'target' parameter you can create
proposals for groups of minions (or even single minions). The idea is that the
proposal runner is run multiple times to create storage profiles for every kind
of OSD the cluster will have. E.g. a cluster might have some machines with NVME
drives and SSDs and some machines with only spinners. To keep the runner fairly
simple such a setup would be attacked by to runs of the proposal runner, one for
the nvme/ssd storage profiles and one for the standalone profiles.
I hope this all makes some kind of sense to anyone but me. I haven't yet had a
chance to gain some distance to the code. I have discussed quite a few details
with Eric so he might be someone who can help get people unstuck (sorry Eric;),
since I will be out the coming week.
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