pmeese@govt.shearson.com (Philip Meese) (07/17/90)
In his message of 8 Jul 90 Eric Ho sez: > perhaps somebody at Sun's Server Group might > want to at least start planning to add support to the kernel and in SunOS > in general so that it can interact with *temporary* power backup devices. There wouldn't be any need to do kernal mods to support this type of function. A growing number of backup power supplies are equipped with RS232 output ports which can easily connected to a server's serial port. These devices output a range of information from battery condition to outage indicators and time remaining to complete battery exhaustion. Following this cue, all you need is a simple root permission process to monitor the line and initiate a shutdown when the device indicates power is out. This would allow for a graceful unattended shutdown of the server complete with broadcast messages which are a feature of the shutdown command. If anyone is interested in this, I could paw about my files and come up with some backup power supply manufacturer names and such... Philip David Meese -----------------------------|-------------------- On Assignment: | Office: Shearson Lehman Hutton | PM Projects, Inc. World Financial Center, 11fl | 35 West 20th Street New York, N.Y. 10007 | New York, N.Y. 10011 | email: pmeese@shearson.com | email: pmeese@pmp.com Voice: (212) 640-6743 | Voice: (212) 242-3891