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Advanced O&M Command Reference

OceanStor 18000 and 18000F V5 Series V500R007

This document is applicable to OceanStor 18500 V5, 18800 V5, 18500F V5, and 18800F V5. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands.

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change pal rtt

change pal rtt


The change pal rtt command is used to enable or disable the request time trace (rtt) function of the PAL module and clear the existing rtt statistics.


change pal rtt operation=? [ controller=? ]





operation=? operation type.

The value can be "open", "close", or "clean", where:

  • "open": enables the rtt function of the PAL module.
  • "close": disables the rtt function of the PAL module.
  • "clean": clears the rtt statistics of the PAL module.
controller=? Controller ID.

The value is in the format of "XA" or "XB" or "XC" or "XD", where the "X" is an integer ranging from 0 to 3, for example: "0A", "1C".


Developer view

Usage Guidelines

If a delivered command does not contain a controller ID, the command will be executed on the local controller.


  • Enable the rtt function.

    developer:/>change pal rtt operation=open
    Command executed successfully.
  • Disable the rtt function.

    developer:/>change pal rtt operation=close
    Command executed successfully.
  • Clear the rtt statistics.

    developer:/>change pal rtt operation=clean
    Command executed successfully.

System Response


Updated: 2020-01-17

Document ID: EDOC1000181602

Views: 765863

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