I'm curious, what software do you use to manage your UPSs and if you could describe the setup (SNMP, something else) that would be very helpful to us at UC Hastings?
--- Nicholas Urrea UC Hastings College of the Law Director of Information and Network Security Information Technology e: [email protected] ________________________________ From: The EDUCAUSE Wireless Issues Constituent Group Listserv <[email protected]> on behalf of Hales, David <[email protected]> Sent: Thursday, July 20, 2017 9:00:03 AM To: [email protected] Subject: Re: [WIRELESS-LAN] Backup power We size and install a UPS in every switch closet. We have only a few models of switch and access point, so we built a spreadsheet to calculate our power load based on actual power draw observed in our lab. We try to size our UPSes to provide a minimum of 15 minutes of uptime with 150% of their installed load. That gives us enough headroom for adding switches to existing stacks, or adding other PoE devices down the road. Based on a 5-6 year replacement cycle, that sizing should be more than enough to keep up with any growth in load we might experience before the next cycle where we can resize for the load at that point in time. We keep our distribution and core on service contracts, but we use limited lifetime hardware warranty on our access switches. We keep enough spares on hand to handle the troubleshoot and cross ship transition for any that fail. Again, we only have a couple of models in production, so keeping spares on hand is a pretty low cost option. David Hales Network Systems Administrator Information Technology Services 1010 N. Peachtree Clement Hall 117 Cookeville, TN 38505 P 931-372-3983 F 931-372-6130 E [email protected]<mailto:[email protected]> www.tntech.edu/its<http://www.tntech.edu/its> [Tennessee Tech Logo]<https://www.tntech.edu/> [TTU Facebook] <https://www.facebook.com/tennesseetech/> [TTU Twitter] <https://twitter.com/tennesseetech> [TTU Instagram] <https://www.instagram.com/tntechuniversity/> [TTU Youtube] <https://www.youtube.com/user/ttunews> [TTU Pintrest] <https://www.pinterest.com/tennesseetech/> From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Sandra Bury Sent: Thursday, July 20, 2017 10:02 AM To: [email protected] Subject: [WIRELESS-LAN] Backup power Good morning - I would be interested to know how many of you include UPS purchases for switches in each network closet in your campus deployments. If you do not build in backup power, do you put your switches on a maintenance contract, or do you pay to replace them when they fail outside of warranty? Thanks very much. Sandy Sandra H. Bury Executive Director, Computing Services Information Resources and Technology Bradley University 309-677-2808 [email protected]<mailto:[email protected]> [https://www.bradley.edu/global/images/emailsig_wordmark.gif] ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
