Jeff, I've done this before but one of the power supplies was sufficient to run the chassis
What you need to do 1 - set the power to combined mode ( since the PS units will not match ) 2 - remove one of the power supplies 110V cable 3 - install the 'new' power supply cable 4 - power it up and make sure it's online and recognized by the supervisor(s) 5 - repeat steps 2-4 for second PS 6 - set power back to redundant 7 - Enjoy all the new power in your chassis Only risk here is if you lose power on the single supply powering the chassis during your window. We did this a lot during our upgrade program as initially each single 6509 was distribution for about 50 buildings on our campus we now have 2 at each 'core' and each building has a feed from each. So for obvious reasons the no shutdown option was attactive to us. - Scott Jeff Kell wrote: > On a somewhat related note... we have a 6509 that was "somehow" > originally wired for 110v, so we're only getting half the power rating > out of them. I have new 220v mains, plugs, and cables ready... can they > be bumped over one at a time hot, or does it have to be down cold? > > Seems to be a similar issue -- you'll have two power supplies giving you > two different delivered power amounts in the same chassis. > > Jeff > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/