07-13-2011 09:58 AM - edited 03-01-2019 09:59 AM
In our data center we are in the process of transitioning one of our existing racks from 110V/3PH power to 208V/3PH power for a future UCS installation. Currently, there is 110V equipment running within the rack. Before that equipment is decomissioned and moved though, a 6140 fabric interconnect must be installed and configured in the same rack. I noticed that the 6140 is rated for 110-240V power, so I can easily rack it anytime...
But, my question is this: During the cutover process to 208V power in the rack, can the 6140 survive on split 110/208V power across both of its power supplies? (In other words, PSU #1 receives 110V in and PSU #2 receives 208V in.)
I ask because, if possible, I would like to do this so I can keep the 6140 powered up and in service during the entire electrical cutover process.
Thanks in advance for any help provided. Much appreciated!
~Ryan Sawyer
07-13-2011 11:29 AM
Please reference the link below to see if this answers your question.
http://www.cisco.com/assets/cdc_content_elements/flash/dataCenter/cisco_ucs_power_calculator/
Sent from Cisco Technical Support iPad App
07-13-2011 11:35 AM
From Cisco TAC:
"Since the power supplies are autosensing this will not be an issue. I would do it during a maintenance window just in case something does go wrong.
http://www.cisco.com/en/US/docs/unified_computing/ucs/hw/switch/install/techspec.html"
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