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04-02-2014 01:32 AM
04-02-2014 01:32 AM
Hello
Itanium OpenVMS 8.4
1) I have some blades, and each of them hosts 10 to 25 OpenVMS virtual machines.
Some virtual machines form a Cluster, most are standalones.
Of course, when I am on the blade, I run HP-UX.
If I want to issue the same command on all OpenVMS nodes of a blade, I do not think I can do this from HP-UX, apart from some rsh/ssh.
I can define on an OpenVMS node a logical in a Sysman table, like
blade1, which is translated to
itan01,itan02...
and launch
$ mc sysman set env/node=blade1
do ...
Any better idea ?
2) If I want to stop all OpenVMS nodes of a blade, I can launch
hpvmstop -a -g -F
If I want to start all OpenVMS nodes ?
Some script like
hpvmstatus | awk '$3 ~ /OpenVMS/ {print "starting VM ",$1,"\n\n" ; system ("hpvmstart -P "$1) ; print "\n\n"}'
Anything better ?
Thanks for any hint
Solved! Go to Solution.
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04-02-2014 12:26 PM
04-02-2014 12:26 PM
Re: Issuing a command on all OpenVMS virtual machines from HP-UX
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04-03-2014 02:17 PM
04-03-2014 02:17 PM
SolutionGerard,
There's nothing wrong with ssh. Once you have your certificates worked out, it should be simple, reliable and secure. Note that you can use the same certificate pair on multiple systems - it greatly simplifies maintenance, and when the target is an OpenVMS cluster, access to one is access to all anyway.
I'd suggest you start with the simplest possible script to distribute commands to VMS nodes using whatever mechanism is simplest and adapt it as needs arise. Don't try to solve all possible issues in advance, and although perfection is a laudible goal, there's no expectation to get there in one hit.