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Installation Guide

OceanStor 5000, 5000F, 6000, and 6000F V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, and 6800F V5 storage systems. It describes hardware installation of those storage systems for helping you easily and quickly finish the installation.
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Rolling Back the Storage System

Rolling Back the Storage System

If controller expansion fails, restore the storage system to factory settings.

When handling controller expansion failure, remove management network cables and PCIe cables of storage systems that have not been added to the cluster to isolate controllers.


  1. Roll back controller expansion in the original storage system in normal mode.

    1. Run the change user_mode current_mode user_mode=developer command to enter the developer view.
    2. Run the debug command to enter the engineer view.
    3. Run the sys showcls command to query the total number of controllers in the cluster, as shown in the following figure. node cfg indicates the total number of controllers in the cluster.
      admin:/diagnose>sys showcls 
      mode             : normal 
      status           : none 
      node cfg         : 2 
      node max         : 8 
      group cfg        : 1 
      group max        : 4 
      product          : 0 
      serial           : 2102350SHW10G3000001 
      WWN              : 0x2100e4a8b63bd03e 
      local node id    : 0 
      normalNodeBitmap : 3 
      faultNodeBitmap  : 0 
      offlineNodeBitmap: 0 
      standbyNodeBitmap: 0 
                id                    role                  status        
       -------------------- -------------------- -------------------- 
       0                      master                 normal               
       1                      slave                  normal               
               group                  controller enclosure 
       -------------------- -------------------- 
       0                      0 
       0                      0     
    4. Run the exit command to exit the diagnose view.
    5. Run the change user_mode current_mode user_mode=engineer command to enter the engineer view.
    6. Run the change controllers_expansion cancel controller_total=m command to roll back controller expansion.

      In the command, m indicates the total number of controllers in the original cluster.


    Do not restart the controllers to minimize the impact on cluster services.

  2. Perform the operations described in Clearing the Controllers That Failed to Be Added.
Updated: 2019-07-11

Document ID: EDOC1000181531

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