[Deepsea-users] Deploying on 3 networks with DeepSea

Ricardo Dias rdias at suse.com
Mon Nov 6 14:00:38 MST 2017

> On 6 Nov 2017, at 13:55, Jan Fajerski <jfajerski at suse.com> wrote:
> Hi list,
> does the following scenario ring any alarm bells with anyone?
> The cluster has a salt-master, MONs and OSDs. All nodes have 3 networks: a management network and public- and cluster-network. All nodes have a hostname that resolves via DNS to the ip on the management network. The ips on cluster- and public-network don't correspond to DNS names.
> The MONs derive their IDs from the short hostname, which would resolve to the ip addresses on the management network if one would attempt that.
> The cluster deployed and operates fine. Is there any conceivable disadvantage with this setup? For example:
> Should there be dns names for the public-network ip addresses?
> Does DeepSea have any issue (or will have issues in the future) with running on the management network (the salt master has access to the public-network)?

The only thing I’m seeing is that the public network might not be used at all because the MONs will bind to the management network, and the OSDs will connect to the MONs using the management network.

If the management network has a lower bandwidth than the public network, then it might be a problem.

> Imho this setup should work fine, but I might be missing something.
> Best,
> Jan
> --
> Jan Fajerski
> Engineer Enterprise Storage
> SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton,
> HRB 21284 (AG Nürnberg)
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