Oracle Cloud Infrastructure Documentation

Specifications for Using Oracle Cloud Migrations

Review all specifications for using Oracle Cloud Migrations.

Licensing Requirements

Ensure that you comply with all the operating system (OS) and application licensing requirements when you run migrated instances on Oracle Cloud Infrastructure (OCI).

For information about licensing requirements of Microsoft products on OCI, see Microsoft Licensing on OCI.

Supported Migrations

The Oracle Cloud Migrations service supports the following source and target environments, and asset types:

Source Environment Source Asset Target Environment Target Asset

VMware vSphere 6.5, 6.7, or 7.0

Virtual Machine

Oracle Cloud Infrastructure

 Compute Instance

Supported Source Environments

Oracle Cloud Migrations supports discovery of assets from the following external environments:

Source Environment Discovery Mechanism Discovered Assets

VMware vSphere 6.5

Remote Agent Appliance

Virtual Machine

VMware vSphere 6.7

Remote Agent Appliance

Virtual Machine

VMware vSphere 7.0.x

Remote Agent Appliance

Virtual Machine

Required Virtual Machine Configurations

Following VMware virtual machine (VM) parameter values that you must set up before migrating the assets:

Parameter Value Setup steps
disk.EnableUUID True

By default the disk.EnableUUID parameter is enabled.

If not, then follow the given steps to enable the parameter:

  1. Shut down the VM.
  2. Right-click on the VM and click Edit Settings.
  3. Select the Options tab.
  4. Select General under the Advanced section.
  5. Select the Configuration Parameters on the right-side menu.
  6. Check if the parameter, disk.EnableUUID exists and the value is set to TRUE. If not, then set the value to True.

    If the parameter does not exist, then select Add Row and add it.

  7. Start the VM.
ctkEnabled True

By default, Changed Block Tracking (CBT) is not enabled on VMware VMs. To enable CBT, see CBT on virtual machines.

Supported Source VM Guest Operating Systems

The supported source VM Guest Operating System for Linux VMs and Windows VMs is mentioned in this section.

OCI ensures that workload instances that are migrated and launched according to the migration service guidelines are accessed using SSH.

For any operating systems version other than the ones covered by an official support service from Oracle (for example, Oracle Linux with Premier Support), OCI provides commercially reasonable support limited to getting an instance launched and accessible using SSH.

Although OCI supports launching an instance from a custom OS, OCI doesn't ensure that the OS vendor also supports the instance. If you're running Oracle Linux on OCI, you can automatically access Oracle Linux Premier Support.

OCI supports the following operating systems:

Windows VMs

Guest OS Notes

Windows Server 2012 Standard, Datacenter

  • All windows instances on shared compute must be registered with the Oracle-provided Key Management Service (KMS) server. See Post-Import Tasks for Windows Images.
  • Bring your own license (BYOL) for Windows Server is not permitted when launching a VM instance on a shared host. For more information about BYOL and the licensing requirements for Windows images, see Microsoft Licensing on OCI

Windows Server 2012 R2 Standard, Datacenter
  • All windows instances on shared compute must be registered with the Oracle-provided Key Management Service (KMS) server. See Post-Import Tasks for Windows Images.
  • Bring your own license (BYOL) for Windows Server is not permitted when launching a VM instance on a shared host. For more information about BYOL and the licensing requirements for Windows images, see Microsoft Licensing on OCI

Windows Server 2016 Standard, Datacenter
  • All windows instances on shared compute must be registered with the Oracle-provided Key Management Service (KMS) server. See Post-Import Tasks for Windows Images.
  • Bring your own license (BYOL) for Windows Server is not permitted when launching a VM instance on a shared host. For more information about BYOL and the licensing requirements for Windows images, see Microsoft Licensing on OCI

Windows Server 2019 Standard, Datacenter
  • All windows instances on shared compute must be registered with the Oracle-provided Key Management Service (KMS) server. See Post-Import Tasks for Windows Images.
  • Bring your own license (BYOL) for Windows Server is not permitted when launching a VM instance on a shared host. For more information about BYOL and the licensing requirements for Windows images, see Microsoft Licensing on OCI

Linux VMs

Guest Operating Systems Supported Versions
CentOS 7, 8, and 9
Debian 9, 10, and 11
Oracle Linux 7, 8, and 9
Red Hat Enterprise Linux (RHEL) 7, 8, and 9
SUSE Linux Enterprise Server 12 SP1, SP2, SP3, SP4, and SP5
SUSE Linux Enterprise Server 15 SP1, SP2, and SP3
Ubuntu 14.04, 16.04, 18.04, and 20.04

Supported Target Compute Shapes

The Compute shapes that are supported by the recommendation engine and the target assets for the migration of VMs to OCI.

Shape Version

VM.Standard2.x

 x = 1, 2, 4, 8, 16, 24

VM.Standard3.Flex

 -

VM.Standard.E3.Flex

 -

VM.Standard.E4.Flex

 -

VM.DenseIO2.x

 x = 8, 16, 24

VM.GPU3.x

 x = 1, 2, 4

VM.Optimized3.Flex

-

For more information about shapes, see Compute Shapes.