I have a smart-ups connected to my OS X Snow Leopard server ver. 10.6. Based on the docs and forums I read, I have been trying to use the software provided by APC, PCNS. I have also tried to just use the UPS communications cable provided and use the OS' "UPS options". Neither of them work exactly how I need them to.
Here are the issues:
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If I use the UPS options built in the server, it performs a soft shutdown. Once power is restored to the UPS, the server does not turn back on even though the option is set to power back on after a power outtage. (I understand this because the server had a soft shutdown and not a hard or dirty shurdown which causes the server to reboot once power is restored.
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If I use PCNS (provided by APC), it will perform a soft shutdown but once again, it will not restart once power is restored to the UPS. There is a doc. mentioning on how to "fix" this. I change the shutdown command initiated by PCNS. The only thing this does is allow for a hard or dirty shutdown. Great, now it reboots once power is restored to the UPS... Problem is, I still need to have a soft shutdown so my VM's will shutdown properly.
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The command I change from APC is a script that calls for the OS shutdown. The default is shutdown -h now. According to APC, I change this to shutdown -f now. (I never saw the -f option in any man page or Apple doc.) I did find one posting and also in several docs about the -u option. The problem here is that it seems to now work.
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I perform a shutdown command with the -u command and it will not halt the power supplies for 5 min. before shutting down. If I try the command sudo shutdown -u the response is that I am missing a required option such as -h or -r.
So, I am at an impasse. I need to have my OS X server perform a soft shutdown AND power back up after power has been restored. Right now, it seems I can have either or, and that is not a very enticing resolution....
Any suggestions are most welcome. THanks!