Messages in this thread | | | Date | Mon, 16 Feb 2004 10:35:04 +0100 | From | Arjan van de Ven <> | Subject | Re: dm core patches |
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On Mon, Feb 16, 2004 at 09:19:45AM +0100, Lars Marowsky-Bree wrote: > On 2004-02-13T17:08:59, > Arjan van de Ven <arjanv@redhat.com> said: > > > one thing you can do is provide a way for drivers to wake the userspace > > tester early. Say by default it polls every minute, but if the fiber > > channel driver gets a LIP UP event it (via a central API) makes the > > userspace daemon *now*. > > I may be missing something obvious, but a LIP UP should be accompanied > with a round of 'device detections' on that link, which already should > trigger a few hotplug events, no? > > So this seems pretty much solved.
not normaly; there are several reasons the loop can bounce briefly and right now the fiber drivers don't notify linux of that every time. Maybe that's for the better .... if it's a frequent thing that is short-timed then it would be obscene to yank the disks from under the user (and force-umount his fs) every few hours..
while in multipath you do want to at least stop using the current path if there is another path that is not in negotiation... [unhandled content-type:application/pgp-signature] | |