IBM刀片服务器管理模块恢复出厂默认值
IBM官方文件如下：
Resetting the management module back to factory defaults
The BladeCenter management module has a reset button with which you can reset the module and return it to the factory defaults. This reset button is below the management module connectors, near the MAC address.Use a straightened paper clip or a similar item to access it. The reset button has two uses:
Reset the network configuration: Press and hold the reset button for 3 seconds or less.
Reset the entire management module (including user IDs and passwords) to the factory defaults. This requires a sequence of presses and releases:
a. Press and hold the reset button for 5 seconds.
b. Release the button and wait 5 seconds.
c. Press and hold the button for another 10 seconds.
Note that this sequence should be as precise as possible to ensure success: 5 in, 5 out, 10 in. After you do a full factory defaults reset in this way, the default user ID and password will be in effect: USERID (all caps) and PASSW0RD (a zero, not the letter O).
After the network configuration has been reset, you can access the Web interface to reconfigure it. To do this, you will need to know the management module's IP address. This can be done as follows:
The management module defaults to using DHCP. The host name will be MMxxxxxxx, where xxxxxxx is the MAC address of the management module. This number is printed below the reset button.
If no DHCP server is found, the management module uses a default IP address of 192.168.70.125 with subnet mask 255.255.255.0. The host name will be MMxxxxxxx.
实际操作：
1按住reset 管理模块将在3秒内重启，但网络仍未恢复
2按住reset 5秒，放开5秒，按5秒，仍未恢复出厂默认值
昨天辗转反侧了一天，问题依然存在。昨天刀片关机断电，今天再加电，发现出厂默认值已经恢复。
总结：第一 按照IBM官方文件操作，二是断电加电重启。