检查刀箱是否插好，重新插拔再看有无报错。
Issue
Blade # X not powering on when inserted in C7000 enclosure. Following error in Integrated Management Log (IML) report is seen:
Server Blade Enclosure Power Request Denied Electronic Keying or I/O Configuration Error
From showall it was seen that the mezzanine card in blade X was incorrectly seated in slot #2 rather than slot #1. Took out the blade # X and moved the QLogic QMH2462 4Gb FC HBA from Mezzanine slot 2 to the Mezzanine slot 1 and tried to reinsert the blade. It powered on successfully without any error.
Explanation:
From the NIC and mezzanine option FRU information, the BladeSystem Onboard Administrator determines the type of interconnects each server requires. Before granting power to a server blade, the BladeSystem Onboard Administrator compares this information with the FRU EEPROMs on installed interconnect modules to check for electronic keying errors. Because the connections between the blade slots and the interconnect module bays are hard-wired through the signal midplane, the server mezzanine cards must be matched to the appropriate type of interconnect module. For example, a server using a Fibre Channel mezzanine card must be placed in the slot that connects to an interconnect bay holding a Fibre Channel switch. To simplify the installation of the various mezzanine cards and interconnect modules, the Onboard Administrator uses an electronic keying process to detect any mismatch between the mezzanine cards and the interconnect modules.
（通过网卡和mezzanine选项FRU信息，BladeSystem板载管理员确定每个服务器需要的对接类型。 在给服务器刀片供电之前，BladeSystem板载管理员将此信息与已安装互连模块上的FRU eeprom进行比较，以检查电子密钥错误。 由于服务器刀片槽位与互连模块槽位之间通过信号背板进行硬连线，因此服务器的mezz扣卡需要与相应的互连模块类型相匹配。 例如，使用fc mezz扣卡的服务器必须安装在与fc交换机连接的互连槽位上。 为了简化各种mezz扣卡和互连模块的安装，板载管理员使用电子密钥处理来检测mezz扣卡和互连模块之间的不匹配。 ）