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How to Troubleshoot the Fault that the Controller IP Addresses Fail to be Changed?

Publication Date:  2012-07-20 Views:  142 Downloads:  0
Issue Description
The S2300 is logged in to by using the serial port, but its controller IP addresses fail to be changed. An error message “INIT: no more processes left in this runlevel” is displayed, and then the storage system stops responding and can be restarted only by power-off and power-on.
Furthermore, after the cleancofferdb command is executed to clean the coffer DB and the resetsys command is executed to restart the system, the controller IP address still cannot be changed.
The storage system is occasionally booted up, but the following exceptions occur:
  1. Some commands (used to modify the system parameters) disappear.
  2. The information displayed on the login page is different.
Alarm Information
Handling Process
The dual power modules should be of the same type. When the system prompt appears, wait about three minutes until the “start osp_usr!” prompt is displayed. Then enter the user account and password to log in to the storage system and change controller IP addresses. After the operation completes, the Web management interface can be successfully logged in to.
Root Cause
The storage system enters the rescue mode automatically and has a long boot process (two to three minutes after the system prompt appears); therefore, it can be logged in to only after the “start osp_usr!” prompt is displayed. If it is logged in to before being booted up, the system commands become unavailable. Furthermore, the storage system is supported only by a single power module, and another power module fails to be added in due to its incompatible type; therefore, the power-on process fails. 
It is recommended to configure the storage system with dual power modules during installation and deployment. After the storage system starts up, wait a while before you debug it. The controller IP addresses can be changed and the storage applications can be managed only after the storage system is completely started up.