Pausing Global Mirror processing

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Complete this task to pause Global Mirror processing.

About this task

Use the pausegmir command to pause Global Mirror processing. This pause function allows you to temporarily suspend Global Mirror processing attempts to form consistency groups.

There are 2 primary reasons to pause Global Mirror processing:
  • You must repair a part of the Global Mirror infrastructure, such as:
    • Global Copy volume pairs
    • FlashCopy® pairs
    • Storage control unit values
  • You must make modifications to the Global Mirror tuning parameters

Complete the following steps to pause Global Mirror processing. The example commands in this task are shown in two formats. The first format shows the type of information that the command requires. The second format provides the command with declared values for the variables.

Procedure

  1. Issue the pausegmir command to pause Global Mirror processing. Enter the pausegmir command at the dscli command prompt using the following parameters and variables:

    dscli> pausegmir -dev storage_image_ID -lss LSS_ID -session session_ID
    Master_Control_Path_LSS_ID:Subordinate_Control_Path_LSS_ID

    Example

    dscli> pausegmir -dev IBM.2107-75FA120 -lss 10 
-session 01 IBM.2107-75FA120/00:IBM.2107-75FA150/00
  2. Use the showgmir command to verify that your changes are correct. When you are ready to resume Global Mirror processing, enter the resumegmir command to continue with the Global Mirror processing. Do not enter the start (mkgmir) command to start Global Mirror processing.