Checking I/O Status

Procedure

1. Use an SSH tool, such as Xshell 5 or later, PuTTY 0.63 or later, or SecureCRT 6.7 or later, to connect to the management network port of the storage device. Log in to the CLI of the storage device.
   NOTE:

   By default, user name admin and password Admin@storage are used to log in to the SSH tool.
   

2. In the admin view of the storage system, run the change user_modecurrent_mode user_mode=developer command to go to the developer view.
   NOTE:

   If an earlier version, such as OceanStor 18000 V100R001SPC200 or T series V200R002SPC200, requires a password, enter debug@storage.
   NOTICE:

   Perform steps by following R&D engineers' instructions.

3. In the developer view, run the reboot controller controller=<Name> command to reset the faulty controller.
   NOTE:

   Name indicates the controller name.
   

4. Check whether I/O status faults occur on multiple controllers.
   • If yes, go to step 3.
   • If no, go to step 5.

5. Determine whether the startup status of the controller is normal.

   

   NOTE:

   When Health Status is Normal and Running Status is Online, the controller is started normally.
   • If yes, no further action is required.
   • If no, go to step 3.

6. Collect related information and contact technical support engineers.