Cisco 11503 Administration Guide - Page 155

Chapter 4 Using the CSS Logging Features Frequently Queried Log Messages Table 4-8 Cisco 11500 Series CSS Log Messages (continued) Log Message (sys.log: Subsystem Name, Level, and Message) chassis Subsystem CHMGR: Missing backup power supply. Cause and Resolution The power supply lost AC power from the source. A CSS 11501 and CSS 11503 contains one power supply. The CSS 11506 contains up to three power supplies, but requires two functioning power supplies to guarantee service. If the following message appears first, then you can assume that the problem is with the AC power source, not the power supply. CHMGR: Cannot locate power supply: PSnumber. The PSnumber variable indicates which power supply cannot be found or has failed. To determine whether the Cisco 11500 series CSS power supplies are working properly, both LEDs on the front of each power supply should be lit. OL-5647-02 Cisco Content Services Switch Administration Guide 4-35