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  3. Upgrading the Data Collection Devices and Primary BIG-IQ with Minimal Downtime
Manual Chapter : Upgrading the Data Collection Devices and Primary BIG-IQ with Minimal Downtime

Applies To:

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BIG-IQ Centralized Management

  • 7.1.0
Manual Chapter

Upgrading the Data Collection Devices and Primary BIG-IQ with Minimal Downtime

What happens during a BIG-IQ and data collection device cluster upgrade?

You start the (data collection device) DCD cluster upgrade, and the process proceeds without additional intervention from you. After the DCD cluster upgrade is complete, if you have a secondary BIG-IQ, you need to upgrade it manually, and perform a couple of post-upgrade tasks. But that's it. Because only one device in a DCD upgrades at a time, the data collection device cluster remains online throughout almost all of the upgrade process.
The automated upgrade process completes these tasks.
  1. Breaks the high availability relationship with the secondary BIG-IQ (if present).
  2. Upgrades the DCD devices. To keep the cluster online, one device at a time is upgraded. The process starts by checking the statistics retention policy for the cluster, and checking that the DCD cluster is healthy. Then, for each DCD, the process:
    • Confirms disk space is sufficient for minimal downtime upgrade.
    • Stops snapshot creation.
    • Deactivates data collection services on a DCD.
    • Upgrades the DCD to the latest version.
      If the
      /var
       partition for any of the devices in your cluster was extended before you upgraded, you must extend the
      /var
       partition for that device before the upgrade will proceed. For details on extending a disk volume, refer to
      Resizing VE Disk Volume Workflows
       in the
      F5 BIG-IQ Centralized Management Disk Space Management
       guide on
      support.f5.com
      .
    • Confirms that the DCD is back in service.
    • Reactivates data collection services.
  3. After the DCD devices have all been upgraded, the process automatically upgrades the primary BIG-IQ device.

Upgrade the data collection device cluster and primary BIG-IQ to the latest version

Before upgrading the data collection device (DCD) cluster, you must have completed the upgrade preparation.
The upgrade process installs the new version of the software on each device in the DCD cluster and on the primary BIG-IQ. If you have a secondary BIG-IQ, you'll need to upgrade that manually.
  1. At the top of the screen, click
    System
    .
  2. Select the image you want to upload and click the
    Upload Image
     button.
  3. On the left, click
    Upgrade
    .
    A popup screen notifies you that you are about to upgrade this BIG-IQ system and all of the devices in the associated DCD cluster. Click
    Continue
     to proceed.
  4. For the Upgrade Process, select
    Rolling Upgrade
    .
  5. From the Software Image list, select the image you want to install.
  6. Decide what you want to back up as part of this upgrade.
    • To back up the BIG-IQ device, select
      Back up the BIG-IQ system before upgrade
      .
    • To back up the DCD devices in your cluster, select
      Backup the Data Collection cluster before upgrade
      .
  7. Under Devices, for each listed BIG-IP device and DCD, specify the
    Target Volume
     list, select the volume you want to install the image on for each device in the cluster.
    You can either choose an existing (inactive) volume, or create a new volume. If the
    Target Volume
     list is empty, the machine you are upgrading does not have a second volume available for you to install the upgrade. You must create one to proceed.
    • To install to an existing volume, select
      Target Volume
      , then click
      Select
      , and select the volume for the upgrade.
    • To install to a new volume, select
      New Volume
      , and type the new volume name.
  8. Click the
    Install
     button.
    A confirmation dialog box appears. Wait while the DCD cluster device upgrade process completes. Depending on your configuration and the number of devices you are managing, this could take up to 30 minutes per device. During this time, it is important that you not interrupt the installation process by restarting services or the server. When the BIG-IQ upgrades, it becomes inaccessible briefly. When you can log in to the BIG-IQ again, the process is complete.
  9. Confirm that the upgrade completed successfully.
    1. At the top of the screen, click
      System
      .
    2. On the left click
      SOFTWARE MANAGEMENT
      Installations
      .
    3. Under Last Upgrade, open the properties screen by clicking the name of the just completed upgrade.
    4. On the properties screen for the upgrade, under General Properties, note the Status. If there is a green icon and the words
      Successfully completed the upgrade
       appear, then the upgrade is complete and successful.
Even though you can log in to this BIG-IQ system after the software is installed, the system continues some database re-indexing processes in the background. The time required re-indexing varies, depending on the size of your system configuration. If you perform any searches on objects before it's done re-indexing, BIG-IQ might not return the expected results. During this time, you can continue with the rest of the upgrade process.
During the period of re-indexing, do not restart the BIG-IQ system until you confirm a successful upgrade.
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