Michel Adam asks, "How can I install and configure a reasonably modern UPS with a 3000? I'd like to use something like an APC SmartUPS or BackUPS, for example. What type of signaling connection would be the easiest, network or serial?"
Jim Maher says
First you need to find out what model 3000. Listed on the back will be the power rating. Some of the older ones use 220V. Then you can match that with a proper UPS.
Michel Adam explains in reply
This HP 3000 is an emulator, i.e. a 9x8 equivalent or A-Class. I guess a regular "emulated" RS-232, or actual ethernet port would be the most likely type of connection. In that sense, the actual voltage is of no consequence; I only need to understand the means of communicating from the UPS to the virtual 3000.
Tracy Johnson reports
While we have three "modern" APC units each with battery racks four high, they also serve the rest of the racks in our computer room. Our HP 3000 is just a bigger server in one of those racks. Each APC services only one of the three power outlets on that N-Class. Their purpose is not to keep the servers "up" for extended periods, but to cover for the few seconds lapse before our building generator kicks in in case of a complete power loss.
As far as the UPS talking to our HP 3000 serial port, we didn't bother. Our APC units are on the network so they have more important things to do, like send emails to some triage guy in Mumbai should they kick in.
Enhanced, or not?
In the history department, Hewlett-Packard had its labbie heart in the right place just weeks before the vendor canceled its 3000 plans. We reported the following in October of 2001
HP 3000s will say more to UPS units
HP's 3000 labs will be enhancing the platform to better communicate with Uninterrupted Power Supply systems in the coming months. HP's Jeff Vance reports that the system will gain the ability to know the remaining time on the UPS, so system managers can know that the UPS will last long enough to shut down my applications and databases and let the system crash. Vance said that HP has scheduled to begin its work on this improvement—voted Number 8 on the last System Improvement Ballot—in late fall.
Late fall of 2001 was not a great time to be managing future enhancements for the 3000 and MPE/iX. The shortfall of hardware improvements and availability has been bridged by Charon. Adjustments to MPE/iX for UPS communication have not been confirmed.