Hi xCAT List,
We use xCAT to manage some POWER LPARs hosted by Power 740s via an HMC.
Some recent issues with our HMC hardware prompted us to setup IPMI power
control and remote console functionality on the HMC itself - recent
releases of the HMC software let you enable IPMI management of HMCs using
the HMC CLI chhmc command. We have found remote IPMI consoles quite
useful to see the HMC console messages when it boots and it also lets us
reboot the HMC remotely if it hangs.
Unfortunately we can't find a combination of xCAT attributes for our HMC
that allows us to manage the HMC hardware itself (using IPMI) and also get
full xCAT functionality as a hardware control point for the POWER
infrastructure managed by the HMC at the same time.
If we set the mgt attribute for the HMC to ipmi so we can power control
and get remote consoles on the HMC itself, BUT it breaks some (but not
all) of the POWER hardware control point functionality like the rscan
command.
If we set the mgt attribute for the HMC to hmc we lose ipmi power control
and ipmi remote console on the HMC itself.
We have tried a bit of a mixture like this:
Object name: hmc01
cons=ipmi
groups=hmc,all
hostnames=hmc01
hwtype=hmc
ip=*********
mgt=hmc
nodetype=ppc
otherinterfaces=-imm:*********
password=*********
power=ipmi
serialflow=hard
serialport=0
serialspeed=115200
This seems to let us get ipmi remote console on the HMC and POWER hardware
control point functions like rscan work, but the power control commands
directed at the HMC seem to get confused and we get:
# rpower state
hmc01: Invalid node type: hmc
hmc01: on
Does anyone on this list have a suggestion for a combination of attributes
that allows full functionally for using the HMC as a POWER control point
while also allowing us to get a remote console and power control of the
HMC itself via IPMI ?
Our current version of xCAT (according to rpm -q) is
xCAT-2.7.2-snap201205230215
Regards James
High Performance Computing Specialist
IBM Research Collaboratory for Life Sciences - Melbourne------------------------------------------------------------------------------
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