[Pacemaker] Antwort: Re: WG: time pressure - software raid cluster, raid1 ressource agent, help needed

[Florian Haas]

On 03/07/2011 05:04 AM, Patrik.Rapposch at knapp.com wrote:
> Hy,
> 
> thx for answer. I tested this now, the problem is, mdadm hangs totally
> when we simulate the fail of one storage. (we already tried two ways: 1.
> removing the mapping., 2. removing one path, and then disabling the
> remaining path through the port on the san switch - which is nearly the
> same like a total fail of the storage).
> 
> So I can't get the output of mdadm, because it hangs.

Usually a consequence of configuring multipathd to queue I/O
indefinitely when all paths fail. Do "multipath -ll" and look for
queue_if_no_path.

Florian

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