Most of the UPS no a days come with the drivers for linux to monitor them and the battery, and these drivers can be configure to shutdown the system properly after the battery is in critical state. If you don't have the CD just go to the UPS website and you will probably be able to download the monitor software for linux. Regards, William Burgos wburgos@xxxxxxxxxxxx -----Original Message----- From: redhat-list-admin@xxxxxxxxxx [mailto:redhat-list-admin@xxxxxxxxxx]On Behalf Of Reuben D. Budiardja Sent: Wednesday, October 22, 2003 9:09 AM To: redhat-list@xxxxxxxxxx Subject: Dealing with Power Outage: How to Shutdown cleanly Hello, We just had another 4 hours power outage here on campus last night. Some of our servers and linux clusters were on UPS, but of course they failed after a while and uncleanly/crash shutdown. No one was here when this happens, since we're don't have big IT support for the department, and pretty much I'm the only guy who does the admins for the servers and cluster. I didn't even realize we got a power outage until I came in late last night to pick up something, and had to reboot and manually run fsck for some of the workstation. What a pain.. This got me to thinking. Is there any way that a better UPS can help this situation. I see that some UPS has an RS232 interface or USB, and some software that can shutdown the machine on sustained power outage. I am wondering if this can be done also with Redhat linux 7.x, and 9. What I want is just somehow the UPS to signal the computer that it's on battery and either the a script or UPS itself shut the machine down whenever it is on Battery. I'm really ignorant on this case here, so any help is greatly appreciated. Also, if there're recommendation for those UPS that works well with linux. Thanks. RDB -- Reuben D. Budiardja Department of Physics and Astronomy The University of Tennessee, Knoxville, TN --------------------------------------------------------- "To be a nemesis, you have to actively try to destroy something, don't you? Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect." - Linus Torvalds - -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
