Sstrhsrtj

I have to run in a script; I have tried, but I'm not sure how to call the shell from server.

[root@server ~]# ssh storagenode

storagenode:> shell

Executing shell commands may invalidate your service contract. Continue? (Y/N) Y



         Executing raw shell; "exit" to return to appliance shell ...

+-----------------------------------------------------------------------------+

|  You are entering the operating system shell.  By confirming this action in |

|  the appliance shell you have agreed that THIS ACTION MAY VOID ANY SUPPORT  |

|  AGREEMENT.  If you do not agree to this -- or do not otherwise understand  |

|  what you are doing -- you should type "exit" at the shell prompt.  EVERY   |

|  COMMAND THAT YOU EXECUTE HERE IS AUDITED, and support personnel may use    |

|  this audit trail to substantiate invalidating your support contract.  The  |

|  operating system shell is NOT a supported mechanism for managing this      |

|  appliance, and COMMANDS EXECUTED HERE MAY DO IRREPARABLE HARM.             |

|                                                                             |

|  NOTHING SHOULD BE ATTEMPTED HERE BY UNTRAINED SUPPORT PERSONNEL UNDER ANY  |

|  CIRCUMSTANCES.  This appliance is a non-traditional operating system       |

|  environment, and expertise in a traditional operating system environment   |

|  in NO WAY constitutes training for supporting this appliance.  THOSE WITH  |

|  EXPERTISE IN OTHER SYSTEMS -- HOWEVER SUPERFICIALLY SIMILAR -- ARE MORE    |

|  LIKELY TO MISTAKENLY EXECUTE OPERATIONS HERE THAT WILL DO IRREPARABLE      |

|  HARM.  Unless you have been explicitly trained on supporting this          |

|  appliance via the operating system shell, you should immediately return    |

|  to the appliance shell.                                                    |

|                                                                             |

|  Type "exit" now to return to the appliance shell.                          |

+-----------------------------------------------------------------------------

storagenode#

storagenode# zpool list

      NAME       SIZE  ALLOC   FREE  CAP  DEDUP  HEALTH  ALTROOT

   test 64.1T  30.5T  33.6T  47%  1.00x  ONLINE  -

   nfs 1.09T   119G   993G  10%  1.00x  ONLINE  -

storagenode# exit

logout

storagenode:> exit

Connection to storagenode closed.

You could use a here-document to send the four commands into the ssh call, then use awk to extract the information you need:

ssh storagenode << EOF | awk '/ ONLINE / { if (match($0, "[[:digit:]]+%")) if (substr($0, RSTART, RLENGTH-1) > 80) print }'

shell

Y

zpool list

exit

EOF

The outer wrapping of ssh storagenode << EOF followed by the four commands and EOF simply pipe those four commands into the ssh session. The output of that ssh session is then piped through the awk script. The awk script searches for lines that contain the string ONLINE (as a simple indication that we're looking at zpool output), then additionally searches for the percent utilization in that line. If that utilization is greater than 80, the matching line is printed.