IPMI observation

IPMI observation

There are things to learn everyday, IPMI is becoming importent part of the SUN's Opteron server management environment
Interesting to find that IBM and AMD also sign up as v2 adapter
There were discussion about what are "asserted and de-asserted means, in one of the v2 spec it said the following:
  • asserted:Active-high(positive true) signals are asserted when in the high electrical state (near power potential). Active-low(negative true) signals are asserted when in the low electrical state (near ground potential)
  • deasserted: A signal is deasserted when in the inactive state. Active-low signal names have "_L" appended to the end of signal mnemonic. Active-high signal name have no "_L" suffix. To reduce confusion when referring to active-high and active-low signals, the term one/zero, high/low, and true/false are not used when describing signal states
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