On 09/15/2015 04:32 PM, Jorge Fábregas wrote: > I have a situation where the watchdog provided by the hypervisor (z/VM) > is not configurable (you can't change the heartbeat via the provided > kernel module). SBD warms me about this and suggests the -T option (so > it doesn't try to change it to match the "watchdog" timeout as specified > in SBD's metadata). The -T option helped there.
Well, it turns out the watchdog timer is configurable. I was getting this: ERROR: WDIOC_SETTIMEOUT: Failed to set watchdog timer to 5 seconds.: Invalid argument ...and right after that I did "modinfo vmwatchdog" and saw there were no options to set up the timeout and therefore concluded that was the reason SBD couldn't set it (lack of module option, I thought). Well it turns out it does it via an IOCTL. Now the invalid argument part... it turns out the minimum allowed value for the emulated watchdog is 15 seconds! I recreated my SBD device with "-1 15 -4 30" and it worked! Did it again with "-1 14" and it didn't so that was it. I'm perfectly fine with 15 seconds & 30 as msgwait! Cheers! Jorge _______________________________________________ Users mailing list: [email protected] http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
