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  2. MIDRANGE-L
  3. November 2014

Powering off hosting partition

Hey Larry,
I tried that powering off the hosting partition and see what happens to
the guests.
Yes, the HMC shows a SRC that indicates hung disk on the guests.
Starting the host and the guests carry right on.
Instead of power cycling the host a simple vary off of the nwsd should
work.

All happened because of some bad system values while doing a UPS test.
Luckily it was the 'backup' box.

What it did show me was the trying a 10 second loop counter while waiting
for power back up was not the greatest idea. Basically I was seeing if it
was just a temporary power outage that our UPS could easily handle. The
loop didn't increment during the disk hang. Changed the logic to do a
RTVSYSVAL QDATETIME at time of CPF1816 and periodically while waiting for
CPF1817 or a time interval. And calculating the difference between the
two to see if the power didn't come back up in a timely fashion.


Rob Berendt

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