Upgrade best practices

Follow the upgrade best practices to ensure minimum impact on the production traffic.

Use the following guidelines as you prepare for the upgrade:

  • Refer to the best practices for upgrading to VMware vCenter Server 6.7: https://kb.vmware.com/s/article/54008
  • Plan and prepare for the VMware vSphere 6.7 upgrade to ensure minimum impact on production traffic.
  • Review this entire guide and each referenced document before you begin the upgrade.
  • Follow the practices of your company for performing upgrades. If possible, perform the upgrade during a scheduled maintenance windows.
  • Schedule adequate downtime for system maintenance. Downtime applies to all virtual infrastructure hosts and servers, including the virtual machines (VMs) that are running in the environment. Power down the VMs before upgrading to the latest recommended virtual hardware version. Also, you may need to restart VMs after completing the VMware Tools upgrade.
  • For a VxBlock System with AMP-2V running with the production workload, plan and prepare for the upgrade to ensure minimum impact to production workload.
  • For components in a cluster configuration, upgrade and verify the subordinate component before you upgrade the primary component. After you successfully upgrade the subordinate and primary components, verify the status of the components again to ensure that there are no new alarms.
  • Do not change the system configuration during the upgrade.
  • Check that network time protocol (NTP) is properly configured and functioning on all upgrade-related components or services. Ensure that clocks (time, time zone, and dates) on all hosts and that AMP VMs are synchronized before beginning the upgrade.
  • Verify that Domain Name Service (DNS) (including type A and PTR records) and any local hosts files are properly configured for all upgrade-related components or services.
  • Verify that the domain user account has the following permissions if the operating system is joined to the Active Directory domain:
    • Is a member of the Administrators group
    • Acts as part of the operating system
    • Logs in as a service
  • Verify that the Network Service account has read permission on the folder in which VMware vCenter Server is installed and on the HKEY_LOCAL_MACHINE (HKLM) registry.
  • Verify that the connection between the host machine and the domain controller is working.
  • When upgrading the VNXe software used for management, check the lockdown status on all management ESXi servers. If the lockdown status is enabled, disable it before upgrading and enable it after upgrading.
  • Keep AMP-VX and VxBlock 1000 on same RCM version.
  • Verify that the SSO and operating system do not have the same root password.
  • You do not need to break the partnership between PSCs to upgrade the Enhanced Link Mode (ELM) configuration.