>>> Reid Wahl <nw...@redhat.com> schrieb am 28.03.2021 um 00:42 in Nachricht <capiuu9_r3dzdgimzasryrsjeqj06a+fmt+eg4sauwrdddoi...@mail.gmail.com>: > On Sat, Mar 27, 2021 at 4:28 PM Strahil Nikolov <hunter86...@yahoo.com> > wrote: > >> I had to tune the fence_ipmi recently on some older HPE blades. The >> default settings were working, but also returning some output about >> problems negotiating the cypher. >> As that output could make future version of the fence agent go wild, I >> tested several options untill no errors are reported. Maybe the cypher flag >> was different, but I think it was '-c'. If I'm wrong , the author of this >> thread can check the man page . >> >> Yes -> 'HandlePowerKey=ignore' . I have never expected ipmi to try >> graceful shutdown when I tell it to 'press and hold' or 'cold boot', yet I >> never checked the code of fence_ipmi.
I think for HP you actually have four options (in iLO at least): 1) Power Cycle (hardest version of a reset) 2) Reset (the traditional "reset" button) 3) Pressand Hold the Power button: Most likely it wil lsend an ACPI power event first, tehmn within a very few seconds tun off power 4) Press (ACPI) Power Button shortly: deliver an ACPI event the OS may handle Maybe you even have a 5th option to send an NMI (I think the hardware watchdog does that) (which could cause a kernelpanic with dump, or just be ignored) However I don't know how much of it is available through IPMI. On an old DL380 G7 I get: # ipmitool power chassis power Commands: status, on, off, cycle, reset, diag, soft # ipmitool chassis power chassis power Commands: status, on, off, cycle, reset, diag, soft Regards, Ulrich >> > > fence_ipmilan uses ipmitool to send a poweroff signal. The iLO then sends a > virtual power button press, which IIRC goes through ACPI. By default on > RHEL 7 and above, if the system is responsive, systemd-logind handles a > power key press by initiating a graceful shutdown. You have to disable it > from handling the power key press so if you want hard-power-off behavior. > > >> With triple sbd , I mean sbd with 3 block devices. >> >> Best Regards, >> Strahil Nikolov >> >> On Sat, Mar 27, 2021 at 23:15, Reid Wahl >> <nw...@redhat.com> wrote: >> >> >> On Saturday, March 27, 2021, Strahil Nikolov <hunter86...@yahoo.com> >> wrote: >> > My notes: >> > - ilo ssh fence mechanism is crappy due to ilo itself, try to avoid if >> possible >> >> It has been unreliable in my experience. >> >> > - fence_ipmi requires some tunings (-c flag) and also to disable power >> button from the system >> >> I've rarely, perhaps never, seen a customer have to tune the -c flag. >> >> By disabling the power button, do you mean setting HandlePowerKey=ignore >> in logind.conf? That's not specific to fence_ipmilan, to be clear. >> >> > - triple 'sbd' is quite reliable.My previous company was using 'softdog' >> kernel module for a watchdog device and it never failed us. Yet, it's just >> a kernel module (no hardware required) and thus RH do not support such >> setup. >> >> What do you mean by triple sbd? Correct that RH doesn't support using >> softdog as an sbd watchdog device. It was determined that it's not reliable >> in all situations. It's probably fine much of the time, and I'm glad you >> had a smooth experience with it. >> > >> > On Sat, Mar 27, 2021 at 22:15, Reid Wahl >> > <nw...@redhat.com> wrote: >> > _______________________________________________ >> > Manage your subscription: >> > https://lists.clusterlabs.org/mailman/listinfo/users >> > >> > ClusterLabs home: https://www.clusterlabs.org/ >> >> > >> >> -- >> Regards, >> >> >> Reid Wahl, RHCA >> Senior Software Maintenance Engineer, Red Hat >> CEE - Platform Support Delivery - ClusterHA >> >> > > -- > Regards, > > Reid Wahl, RHCA > Senior Software Maintenance Engineer, Red Hat > CEE - Platform Support Delivery - ClusterHA _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/