VxBlock Central simplified upgrade VxBlock Central supports a simplified upgrade process for single-site environments. It does not apply to multisite environments. MSM initiates and runs the upgrade on each of the Core VMs and MSP VMs. After the upgrade process begins: Do not add any VxBlock Central Core nodes to MSM VMs. Do not join any additional MSM VMs to an MSM cluster. Perform the following high-level steps for a VxBlock Central simplified upgrade on a single-site cluster with a single MSM VM: Collect the custom display names if the system is single MSM. Take a snapshot of the VMs. Configure the VM to use the NTP server. Ensure you have your MSP VM IP address and VxBlock Central Core root passwords. Upgrade a single MSM VM to run the VxBlock Central upgrade script from MSM. Retype the custom display names. Related tasksCollect the custom display names In a single MSM VM deployment, custom display names are not retained after an upgrade. Take a snapshot of VMs Before upgrading, create a snapshot of each VM in the cluster. If you encounter problems during the upgrade process, you can use the snapshot to revert the VM. Configure the VM to use the NTP server Configure each MSM VM and Core VM to use an NTP server. If redeploying an MSM VM, specify an NTP server IP address when configuring the server. Upgrade a single MSM VM Upgrade in a data center environment with multiple Core VMs mapped to a single MSM VM. Retype the custom display names In a single MSM deployment, custom display names are not retained after an upgrade, you need to reenter the names you defined before you began the upgrade process. Custom display names are retained in a clustered environment.