OpenIPMI, IPMI_POWERCYLCE option behaviour
nicky.peeters at pandora.be
Wed Dec 6 05:02:20 CST 2006
Just a quick question about the IPMI_POWERCYCLE option when using the
OpenIPMI tools and drivers (using rhel4).
I've looked around but got a bit confused as what this exactly does
by the config file:
## Path: Hardware/IPMI
## Description: Enable IPMI_POWERCYCLE if you want the system to be
power-cycled on reboot
## Type: yesno
## Default: "no"
## Config: ipmi
# Enable IPMI_POWERCYCLE if you want the system to be power-cycled
# down, delay briefly, power on) rather than power off, on systems
# that support such. IPMI_POWEROFF=yes is also required.
So my question:
Does enabling this option:
1) force the IPMI controller to also power cycle the system after you
issue a reboot command (shutdown -r now) so a faulty shutdown/reboot
procedure in Linux won't leave your machine in limbo.
2) always force a power cycle, even when using a 'shutdown -h now'
command, so your server always reboots. So in essence, future reboots
should be done with the shutdown -h now command (seems odd ;-)
The reason why I'm asking is because 2 out of 3 Poweredge 1850's
failed to 'power cycle' when doing a 'shutdown -r now', and left the
machines in such a state that not even the IPMI would listen to
ipmitool commands (over lan). The poweredges where behind in kernel-
updates but all other updates were installed, so I guess this release-
mismatch caused the reboot procedure to flake out.
The machines now reboot without problems after receiving the latest
More information about the Linux-PowerEdge