The VMware HCX migration interface provides a set of options that can be used to tailor the behaviors and conditions of the virtual machine before or after the migration operation.

HCX has several types of optional settings for use when migrating virtual machines: Switchover, Virtual Machine, and Extended.

Note:

Available options depend on the selected migration type.

Switchover Options

Switchover options are applied during the switchover phase of migration. Except for the Force Power-Off VM setting, which can be set on an individual virtual machine (VM) migration, these options are set globally for a group of selected VMs.

Force Power-Off VM

By default, VMware HCX attempts to shut down the virtual machine guest gracefully during the VMware HCX Bulk migration operation. If the OS interrupts the termination process, the migration operation fails. Checking this option causes VMware HCX to force the power-off.

Remove Snapshots

Causes VMware HCX to consolidate snapshot files before migrating the virtual machine. If there are snapshots present, the system activates the option by default.

Force Unmount ISO Images

Causes VMware HCX to remove mounted ISO images before migrating the virtual machine.

Virtual Machine Options

The virtual machine (VM) options are available only for individual VM migration.

Enable Seed Checkpoint

In the event a migration is unsuccessful or canceled, Seed Checkpoint retains the target disks created at the target site. Without Seed Checkpoint, the HCX roll back process cleans up the target disks created during the migration and all transferred data is lost.

Note:

To continue a migration from the latest seed checkpoint, be sure to select Enable Seed Checkpoint again when you restart the migration. If the Seed Checkpoint option is not selected, the migration starts over again with new target disks in the selected datastore location at the target site.

To use this option, select a specific datastore fpr migration and not a datastore cluster.

Restarting a Seed Checkpoint migration to a new datastore creates additional target disks on that datastore, and saves new checkpoint information related to that datastore with the virtual machine data in HCX.

After the Seed Checkpoint migration has succeeded, HCX reviews the checkpoint information associated with the virutual machine and cleans up any target disk that may have been created in other datastores.

Extended Options

Extended options customize the characteristics of the migrated virtual machine with out having to manually update the settings after migration. Extended options can be set globally for a group of virtual machines migrations or for an individual virtual machine.

Retain MAC

Causes a virtual machine to keep its current MAC address during VMware HCX bulk migration operation, allowing communications to resume gracefully, and allows for MAC-based security policies to be honored. This option is selected by default for vMotion and Replication Assisted vMotion migration types and is cannot be changed.

Upgrade Virtual Hardware

Allows VMware HCX to upgrade virtual machine Hardware to the latest supported version as part of the migration operation, making current virtual machine Hardware features immediately available to the migrated virtual machine.

Upgrade VMware Tools

Allows VMware HCX to upgrade VMware Tools to the latest supported version as part of the migration operation, making current VMware Tools features immediately available to bulk migrated virtual machine.

Deactivate Per Virtual Machine EVC

vSphere Enhanced vMotion Compatibility (EVC) ensures that workloads can be live migrated, using vMotion, between ESXi hosts in a cluster that is running different CPU generations. EVC is a cluster level setting that supports virtual machine mobility within a cluster. For virtual machines implementing per-VM EVC, the EVC mode becomes an attribute of the virtual machine rather than the specific processor generation it happens to be booted on in the cluster. If this option is selected then this virtual machine may not be able to vMotion back to the Source Site.

Host Name

Sets the host name of the migrated virtual machines at the destination site.

Domain Name

Sets the domain name for the virtual machine at the destination site. This option is available only with Linux virtual machines.

Personalization Script

Uploads a customization script to a migrated virtual machine. The script runs before and after guest customization. The customization script cannot exceed 1500 characters.

DNS Customization

Sets the Primary and Secondary DNS servers for the migrated virtual machine.

Generate a new Security Identifier (SID)

Generates a new Security Identifier (SID) for the migrated virtual machine. This option is supported only for Windows virtual machines. Please make sure virtual machine has an active "local administrator" present. If the virtual machine is connected to the domain, it will be moved to workgroup, and no DNS suffix is set.

Resize CPU

Changes the number of vCPUs for the migrated virtual machine. For more information about VMware virtual machine vCPU limitations, see the VMware vSphere product documentation.

Resize Memory

Changes the memory size for the migrated virtual machine. For more information about VMware virtual machine memory limitations, see the VMware vSphere product documentation.

Replicate Security Tag

Replicates VMware NSX-V and NSX-T security tags associated with a virtual machine undergoing migration. The security tags are replicated from the source site to the destination site.

Migrate Custom Attributes

Migrates VMware Custom Attributes associated with a virtual machine undergoing migration. The Custom Attributes are replicated from the source site to the destination site.

The following table summarizes the options that apply to each migration type.

Option

Cold Migration

vMotion Migration

Bulk Migration

Replication Assisted vMotion Migration

OS Assisted Migration

Force Power-off VM

No

No

Yes

No

N/A

Remove Snapshots

No

Yes

Yes

Yes

N/A

Force Unmount ISO Images

No

Yes

Yes

Yes

N/A

Seed Checkpoint

No

No

Yes

No

No

Retain MAC

No

Yes (default setting; not selectable)

Yes

Yes (default setting; not selectable)

Yes (default setting; not selectable)

Upgrade Virtual Hardware

Yes

Yes (upgrades on reboot)

Yes

Yes

N/A

Upgrade VMware Tools

No

Yes

Yes

Yes

N/A

Deactivate Per-VM EVC

No

Yes

No

Yes

N/A

Hostname

No

No

Yes

No

No

Domain Name

No

No

Yes

No

No

Personalization Script

No

No

Yes

No

No

DNS Customization

No

No

Yes

No

No

Generate a new Security Identifier (SID)

No

No

Yes

No

No

Resize CPU

No

No

No

No

Yes

Resize Memory

No

No

No

No

Yes

Replicate Security Tags

Yes

Yes

Yes

Yes

N/A

Migrate Custom Attributes

No

Yes

No

No

N/A