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Re: [dm-devel] simple question... to tough to answer?

Hi Wim,

Wim Colgate wrote:

I’m not quite sure why no one in the community hasn’t been able to answer my questions.

Simply (re)stated:

1) Are there hooks for dm/multipath events to notify software?

Yes. There is the general dm_event mechanism (which I wouldn't recommend)
or with newer kernels you'll get netlink events from multipath for any
path-related events.

2) does path down/up fire up udev rules?

Not as such. As stated above we should be sending out netlink events for
path up/down events, but to my knowledge no-one is taking advantage
of them. Certainly not udev in its default setting nor multipath.


Dr. Hannes Reinecke		      zSeries & Storage
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