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Dell PowerStore Protecting Your Data

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Configure the metro witness

About this task

  • Only Administrator, Security Administrator, and Storage Administrator are authorized to configure the witness.
  • You can configure witness before or after configuring metro.
  • Only one witness can be configured per cluster.
  • The configured metro is used for all metro sessions and cannot be disabled for specific sessions.
  • The witness status changes to Engaged only after it is configured for both local and remote PowerStore systems.
  • To access the witness server installation tools (secure token generator and thumbprint), use the path: 
    sles15:~ # ls /opt/dell-witness-service/scripts
NOTE:Perform the following steps for both local and remote PowerStore systems.

Steps

  1. In the PowerStore Manager, select Protection > Witness.
  2. In the Metro Witness window, select Add.
  3. In the Add Witness window, configure the following fields:
    • Name
    • IP Address/FQDN
    • Security Token - To generate a security token, run the generate_token.sh script. For details see PowerStore Security Configuration Guide on the PowerStore Documentation page.
      NOTE:The token expires in ten minutes.
    • Description (optional)
  4. Select Add.
  5. In the User Authorization window, review the witness certificate thumbprint, and select Confirm to accept.
    NOTE:For details, see PowerStore Security Configuration Guide on the PowerStore Documentation page.
    The certificate is saved on the PowerStore system.

Results

The witness is created and all existing metro volumes and volume groups are automatically assigned to it. Newly created metro volumes and volume groups are automatically assigned to the witness. The Metro Resources column in the Metro Witness window shows the number of resources that are assigned to the witness. Clicking the number opens the Metro Resources window.

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