[Beowulf] Re: recommendation on crash cart for a cluster
room:fullcluster KVM is not an option I suppose?
hahn at MCMASTER.CA
Thu Oct 8 15:34:50 PDT 2009
> So, hopefully I will have very little need for IPMI (remote power
> cycling is great though; those network aware power distribution stics
> seem great).
power-cycling like this a machine is clearly harder on the PSU
than reset or soft-off/on. I think the only justification for
net/smart PDUs is for power monitoring or as a last-chance backup
for proper (IPMI) power control. I would certainly chose IPMI
before net-PDU if I could only have one (and indeed my organization
sticks to IPMI.) I have only rarely experienced problems with
"stuck" IPMI, and some fraction of those can be solved by sshing
to the machine and using "ipmitool mc reset cold" locally.
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