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OpenManage Enterprise 4.1.x User's Guide

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Update prerequisites

Before updating to the latest version, administrators must consider the following points:

  • Backup and snapshot:
    • Take a VM snapshot of the console as a backup in case something unexpected occurs. Allocate more downtime for this if necessary.
  • Allocate time:
    • Allocate at least an hour for the update process. Allocate more time if the update must be downloaded by using a slower network connection.
  • Prepare scaled appliance:
    • Upgrade of a 'scaled' appliance may fail due to insufficient provisioning of hard drive space that is required for the data backup from a large number of devices and additional plugins.
    • It is recommended to add twice the used hard drive space before initiating the upgrade using the Configure Appliance Disk Size on the Text User Interface (TUI) screen. For example, consider expanding the available HD space to 1.2 TB if the initial allocation is 400 GB. For more information see, Configure the system using the TUI.
  • Manage tasks:
    • Ensure that no device configuration, deployment, or extension (plug-in) tasks are running or are scheduled to run during the planned downtime.
    • Any active or scheduled tasks or policies are terminated without further warning during the update.
    • Clicking Update would initiate an Upgrade Bundle Download job. This job finishes automatically after all the update files are downloaded and cannot be terminated by the user.
  • Restart after device deletion:
    • Post deletion of devices, a restart of services using TUI is recommended before initiating a console upgrade. Otherwise, the upgrade may fail and the console would reboot with the previous working state of the appliance.
  • Notify users:
    • Notify other console users of the impending scheduled update.
  • Plan for upgrade failure:
    • If the upgrade fails, the appliance would restart. It is recommended to revert the VM snapshot and upgrade again.
  • Time duration for large-scale upgrade:
    • When you update OpenManage Enterprise with more than 8000 discovered devices, the update task completes in two to three hours. During this time, the services might become unresponsive. It is then recommended to gracefully reboot the appliance. After the reboot, normal functionality of the appliance is restored.
  • Time duration for upgrade with plug-in:
    • Upgrade time for an appliance with the Power Manager plug-in installed, might be between 1 and 10 hours depending on the number of devices being monitored by Power Manager.
NOTE: Update Compatibility:
  • If your OpenManage Enterprise version is earlier than 3.10, first update it to 3.10.x, and then use Migrate an appliance to move to 4.1.
  • OpenManage Enterprise Automatic > Online method supports N-2 where N is the currently released version. For example, if the current released version is 4.1, you can update from 3.10.x or newer. For systems running on Tech Release, it is recommended to first update to either 3.0 or 3.1.

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