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Which are the different shells in Data ONTAP 8 Cluster-Mode and what are their uses?

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data-ontap-8
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Applies to

  • Data ONTAP 8
  • ONTAP 9

Answer

There are three different shells available in ONTAP:

Clustershell
  • This is the default shell that is started when a user logs into the system. 
  • Prompt in Admin privilege mode appears as ::>
  • Prompt in Advanced and Diag privilege mode appears as ::*>
  • Tab completion is supported
  • To see a list of available clustershell commands, type '?'
Nodeshell
  • Nodeshell commands are similar to 7-mode
  • Tab completion is not supported
  • The nodeshell can be started by running the command, 
    ::> system node run -node <node_name> 
  • To exit nodeshell back to clustershell, type 'exit' or 'Ctrl-D
  • Nodeshell commands can be run directly from clustershell  by using the following syntax:
    ::> node run -node <nodename> -command <nodeshell command>
  • To see a list of available nodeshell commands, type '?' at an interactive nodeshell prompt
  • Nodeshell for any node in the cluster can be accessed from any other node
Systemshell
  • Low level shell used for advanced, diagnostic and troubleshooting purposes
  • Under normal circumstances systemshell should not be used without directions from NetApp Support
  • Prompt appears as node_name%
  • Systemshell is specific to a node 
  • Systemshell for any node in the cluster can be accessed from Clustershell on any node
  • To use, the diag user must be unlocked and password protected  
  • For information on unlocking the diag user, see How to unlock the diag user account

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