Article number
Affected Versions
Source Hypervisor
Target Hypervisor

How to Prepare to Power Off a Site with Zerto Virtual Replication Installed

Viewed 1267 times


An administrator may require an entire site to be powered off, for example, hardware maintenance needs (such as firmware updates, component replacements, etc). This article describes the recommended steps to prepare a site with Zerto Virtual Replication installed to be offline during such maintenance. 

Note: this article is intended to be used in the event that all VMs and hosts at a site must be shut down.  If only a specific host needs to be entered into maintenance mode, please review the "How to Place a Host with an Associated VRA into Maintenance Mode" article. 



In order to prepare a site with Zerto Virtual Replication installed to be powered off, follow these steps:
  1. Make sure there are no running tasks, if there is a task wait for it to complete (or stop it).
  2. Perform a Guest OS Shut Down of the ZVM at the site that will be powered off.
  3. Once the ZVM is powered off, select each VRA in the vSphere Client and perform a Guest OS Shutdown, then select each VRA-H and choose Power Off. Since Open-source VMware Tools is installed on the VRA VMs, the Guest OS Shutdown option is available and is highly recommended. The VRA-H VMs do not have an operating system installed.
  4. If the ZVM is connected to an external SQL server hosting the ZVM database, it can be powered off after the ZVM.
Following the above steps, alerts are registered at peer sites regarding disconnections to this site. These are expected as the resources are now unavailable.
Once the maintenance on the site is complete, follow these steps:
  1. Confirm that the vCenter VM is online and available.
  2. Confirm that all hosts are online and connected to vCenter.
  3. Confirm that all datastores are online and available to the hosts.
  4. Confirm that the network connection between sites is available, healthy and that any relevant port rules required by Zerto Virtual Replication are preserved.
  5. If the ZVM is connected to an external SQL server, power it on (before the ZVM VM is powered on).
  6. Power on the ZVM VM.
  7. Power on the VRA VMs, then the VRA-H VMs.
  8. A few minutes after the ZVM VM has been powered on, verify that the Zerto Virtual Replication GUI is available and you're able to log in.
  9. Confirm that the connection between Zerto Virtual Replication site components is reestablished - this will be noted on the dashboard and in the "Alerts" tab under the monitoring tab.
  • Note: be advised that it may take up to 15 minutes for all components to successfully reestablish their connections and for all VPGs to proceed with their appropriate syncs.