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Monitoring the RAID Array for the JA2500 Junos Space Appliance

 

Purpose

For optimal performance of the JA2500 appliance, monitor the status of the RAID volume installed in the appliance.

Action

  • Monitor the RAID controller for RAID failure events:

    Do the following:

    1. Log in to the appliance as the admin user.

      The Junos Space Settings Menu appears.

    2. Type 6, which is the (Debug) run shell option.

      You are prompted to enter your password.

    3. Type the password for the admin user and press Enter.

      You are taken to the shell.

    4. Obtain the current status of the RAID volume by executing the following command:

      The output of this command provides information about the RAID volume, like volume ID, volume status, volume state, and so on. The following is a sample output.

  • (Optional) If the volume state (in the output of the preceding command) displays Degraded, then check the physical drive status using the following command:

    The following is a sample output.

  • Run RAID consistency checks every month:

    Note

    You should run a consistency check on your JA2500 appliance at least once a month to make sure that grown drive defects are mapped out in case of a drive failure.

    Do the following:

    1. Log in to the appliance as the admin user.

      The Junos Space Settings Menu appears.

    2. Type 6, which is the (Debug) run shell option.

      You are prompted to enter your password.

    3. Type the password for the admin user and press Enter.

      You are taken to the shell.

    4. (Optional) If you do not have the volume ID of the RAID volume, run the following command:
    5. To start the consistency check, execute the following command, where volume-id refers to the ID of the RAID volume:
    6. Monitor the progress of the consistency check by executing the following command:

      If there is a problem found during the consistency check, the degraded state and the failed drive is displayed.

Meaning

The outputs of the various commands provide information about the status of the RAID volume.