If you are not sure if all of the hosts and VMs on a protected site are compatible with high-frequency snapshots, you can run a host compatibility check.

When you create a protection group and select a protected site and vSphere instance, the system runs a compatibility check to determine if the hosts on the site are compatible with high-frequency snapshots.

If the compatibility check fails, it means either that the cluster does not support high-frequency snapshots, or the cluster is "mixed." A mixed cluster has some hosts running vCenter Server 7.0 Update 3 and ESXi 7.0 Update 3, and some that are not.

In this situation, you can run a host compatibility check to identify any non-compatible VMs that you might want to migrate to a compatible host.

Procedure

  1. From the left navigation, select Protection groups.
  2. From the upper right side of the Protection groups page, click Create protection group.
  3. In the General page, enter a name for the protection group.
  4. Next, select a protected site and a vCenter. The dialog box also displays the cloud file system associated with the protected site, which is where snapshots replicate to.
  5. After you select a protected site and vCenter, the system checks the vCenter for software compatibility with high-frequency snapshots. The software compatibility check has three possible outcomes:
    • If the protected site vCenter and hosts are compatible, then the Use high-frequency snapshots option is selected, and you can start defining protection group membership. See create a protection group.
    • If the protected site vCenter and hosts are not compatible, then high-frequency snapshots cannot be enabled for the selected vCenter. If you want to upgrade the software on the protected site, see Getting the Software for HIgh-Frequency Snapshots.
    • If the protected site is "mixed," then some hosts are compatible with high-frequency snapshots and some are not. In this case, continue the steps in this task to run a host compatibility check and preview VMs on the hosts.
  6. If the selected vCenter's cluster mixed, the Use high-frequency snapshots option is deselected. Select the option, and then to see which hosts are compatible click Details. (The Details button only appears if the cluster is mixed and the option is selected.) You can also click the Information icon (Click the small information icon to view more information about host compatibility.) next to the Use high-frequency snapshots option.
    The details button provides information on host compatibility with high-frequency snapshots.
  7. In the High-frequency snapshots dialog box, hover over the Some hosts link to see which hosts on the protected site are compatible or not. When you are finished, click OK.
    The high-frequency snapshot dialog box shows which hosts on the protected site are compatible with the feature.
  8. To run the host compatibility check, create an all-encompassing VM name pattern query using *, and then click Host compatibility check.
    Host compatibility check helps you determine which hosts are compatible with high-frequency snapshots.
  9. In a mixed cluster, the compatibility check fails and displays a list all VMs on hosts that are not compatible with high-frequency snapshots.
    The host compatibility check shows all VMs that are running on hosts that do not support high-frequency snapshots.
    Note: Any VMs that have existing vSphere snapshots or VMware Cloud DR standard-frequency snapshots also cannot be captured in high-frequency snapshots.
  10. Click OK.