1.4 Prerequisites

When you upgrade a Primary Server to ZENworks 2020 for the first time in the Management Zone, complete the following tasks before running the upgrade:

  • Ensure that the Primary Server that you want to upgrade to ZENworks 2020 meets all the ZENworks 2020 System Requirements.

    For more information, see Database Requirements in the ZENworks Server Installation.

  • Back up the ZENworks database.

  • The time required to complete the upgrade on the first Primary Server depends on the size of the data present in database. If the first Primary Server upgrade is on a device that is using an Microsoft SQL or Oracle database, then run the upgrade in a test environment (with server data similar to the production environment). This is to calculate the outage time of the production server.

  • Ensure that there is no high CPU utilization or memory utilization during the first Primary Server upgrade.

  • Stop all ZENworks services on any Primary Server that is not being upgraded in order to prevent the database from being accessed during the upgrade. Otherwise, this might result in the database going into a nonrecoverable state.

    When you upgrade the first server, then the System Update is available to upgrade the ZENworks Satellite Servers and managed devices to ZENworks 2020.

  • Ensure that the server hosting the database is running with an active database.

  • On a Linux Primary Server, ensure that the c3p0,the hibernate logs for ZENLoader, and ZENServer are disabled prior to the upgrade. For more information, see TID 7015032.

  • Ensure that the time on the server and the database are synchronized (time difference must be less than 2 minutes).

    NOTE:

    • If the time difference is more than 2 minutes and less than 24 hours, a warning message is displayed during the upgrade.

    • If the time difference is more than 24 hours, an error message is displayed.

  • Ensure that the Windows Primary Servers have Windows Installer 4.5 or later versions installed and running.

  • Ensure that all fixed ports are free during the upgrade. If the fixed ports are blocked, the upgrade can not proceed. For the list of ports, see ZENworks 2020 Update 1 TCP and UDP Ports.

  • If you have obtained the ZENworks upgrade software as an ISO image download, do one of the following to create the upgrade DVD:

    IMPORTANT:Do not extract and use the ISO image for upgrading ZENworks.

1.4.1 Using Windows to Create a ZENworks Installation DVD from an ISO Image

  1. Download the ZENworks upgrade ISO image from the Micro Focus Download site to a temporary location on your Windows device.

  2. Burn the ISO image to a DVD.

1.4.2 Using Linux to Create a ZENworks Installation DVD from an ISO Image

  1. Download the ZENworks upgrade ISO image from the Micro Focus Download site to a temporary location on your Linux device.

  2. Mount the ISO image by using the following command:

    mount -o loop /tempfolderpath/isoimagename.iso mountpoint

    Replace tempfolderpath with the path of the temporary folder, replace isoimagename with the ZENworks ISO file name, and replace mountpoint with the path of the file system location where you want to mount the image. The path specified by mountpoint must already exist.

    For example:

    mount -o loop /zcm11/ZCM11upgr.iso /zcm11/upgrade