Mandi! Adam Thompson
  In chel di` si favelave...

> We've observed that if any of the nodes boot much faster or slower than the
> other nodes, this causes big problems with both CEPH and PVE, particularly 
> with
> quorum issues.

This is true... this is my ''second'' PVE experiment, the first are
using a SAN via iSCSI, and i've also ''fine tuned'' the shutdown times
in UPSes...

> Unless you have redundant power (I.e. generator) I'm not sure I would ever
> recommend a large PVE+CEPH cluster again.

I doubt that. Probably, as shutdown have to be tuned, startup have too,
as Eneko said.

I'm used to set ''random boot delay'' on my servers, to prevent spikes
on UPSes.
Probably i've only to force some predictable startup time...

Thanks to all!

dott. Marco Gaiarin                                     GNUPG Key ID: 240A3D66
  Associazione ``La Nostra Famiglia''
  Polo FVG   -   Via della Bontà, 7 - 33078   -   San Vito al Tagliamento (PN)
  marco.gaiarin(at)   t +39-0434-842711   f +39-0434-842797

                Dona il 5 PER MILLE a LA NOSTRA FAMIGLIA!
        (cf 00307430132, categoria ONLUS oppure RICERCA SANITARIA)
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