HP A9834-9001B - Manual (Page 219)

Appendix C
Powering the System On and Off
Shutting Down the System
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Step 6. Read the Cell PDH Controller status to determine if the partition is at BIB.
Figure C-9 Using the de -s Command
Step 7. Repeat step 1 through step 6 for each partition.
Powering Off the System Using the pe Command
Perform the following steps to power off the system.
Boot-is-blocked