What is vpmon?
vpmon is vPars Monitor. Its a daemon which monitors vPars in background. It also provides a shell MON> through which various operations can be performed on vPars. Hence vpmon is very crucial component when it comes to deal with vPars. Also, unless specified, all operations by vpmn are performed on boot disk from which it was spawned. So boot disk of vpmon is important aspect while planning any activity on vPars.
Only vparload is the command which has facility to specify different disk on which operation to be performed. Or else all commands of vpmon runs on boot disk it was booted from.
Boot path of vpmon
To get boot path of vpmon you need to run below command from one of the vPar running HPUX.
You can see boot path against “Monitor boot disk path” (highlighted above). This is hardware address of the disk which you need to decode to get disk name in kernel/OS. IT can be decoded as below from left to right :
- This is cabinet number
- This is I/O chassis (0 is front, 1 is back)
- Its I/O bay
- Its slot number
- Rest is ctd
Normally, first disk of first vPar people set as vpmon boot path.
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