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Alarm Message Communication with device failed Appears

Publication Date:  2012-07-22 Views:  616 Downloads:  0

Issue Description

When managing services on the ISM installed on the maintenance terminal, the Error dialog box appears and prompts Communication with device failed, or the prompt "Communication with device failed" appears when performing Discover Device.

Product and version information:
  • S2600
  • S5000 series

Alarm Information


Handling Process

  • Take measures as suggested below to avoid this problem:

    Reduce the number of maintenance terminals that are simultaneously connected to the storage device through the ISM.

    Log in to the storage device through serial ports or the SSH to manage the device and services in CLI mode.


Root Cause

  1. It is found that more than eight maintenance terminals are simultaneously connected to the storage device through the ISM.


  • Excessive ISMs are connected to the storage device, causing the alarm message Communication with device failed. to appear when performing operations.


A maximum of eight ISM clients are allowed to connect and operate the S2600 and the S5000 series simultaneously.