Frequently Asked Questions (FAQ)
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- Why are hypervisors
certified and included on the Hardware Certification List?
From the user perspective the guest must behave on a hypervisor
exactly as it behaves on a physical server. Guests are certified with
hypervisors to ensure that drivers function correctly. Just as the
lists physical servers certified to host an Oracle Linux environment,
the HCL lists hypervisors that are certified to host Oracle Linux
guests. In this context there is no distinction between a physical
server and hypervisor environment.
Please see the
FAQ for information about certifying servers with Oracle Linux
and Oracle VM, and for general questions about the Oracle Linux
and Virtualization Hardware Certification Program.
Please see the
Storage HCL FAQ for information about certifying storage systems
with Oracle VM.
- Does certification of
Oracle Linux as a guest OS on a hypervisor extend to all Oracle products
running in that guest or hypervisor?
Certification applies only to Oracle Linux as guest OS. Oracle
products and applications are sometimes certified with the guest OS,
but this does not mean they are certified with the underlying hardware
or hypervisor. When Oracle products are certified with Oracle Linux,
the certification applies to Oracle Linux on bare metal and Oracle
Linux as a guest OS on Oracle VM. Support for Oracle products with
other guest and hypervisors combinations varies. Additional information
is available at
My Oracle Support (MOS).
- Does Oracle certify
Oracle Linux with other hypervisor environments on x86-based systems?
Oracle Linux is certified as a guest operating system on several
hypervisors and certified environments are listed on the
Please refer to question #2 for important information about the Oracle
products running on hypervisors other than Oracle VM.
- Can customers get support
for an Oracle Linux guest and hypervisor that is not on the server certification
Only guest operating systems and hypervisor combinations listed
HCL are supported in a production environment.
- What is PV, HVM and
PVHVM and why is it important?
Hypervisors support three modes of virtualization: Paravirtualization
or modified guest (PV), hardware-assisted virtualization or unmodified
guest (HVM), and hardware-assisted virtualization with paravirtualized
disk drive and network drivers (PVHVM). The modes supported by a guest
are dependent on the capabilities of the hypervisor, the features
of the underlying hardware, and driver support within the guest.
- What kernels are certified
for Oracle Linux guests?
Oracle Linux with Unbreakable Enterprise Kernel (UEK) is tested
and certified in hypervisor environments and listed on the
For certification information about Oracle Linux guests running the
compatible kernel, users should refer to the certification matrices
published by the vendor of that kernel.
- If a guest OS is certified
with the current release of Unbreakable Enterprise Kernel (UEK), is
it automatically certified for future releases of UEK too?
Certifications published for one major release of UEK do not apply
to future major releases of UEK. For instance, a guest OS certification
for Oracle Linux 6.5 that specifies a minimum kernel requirement of
UEK 4.1.12-37.2.1 (Release 4) is also certified with all subsequent
updates for Release 4, such as UEK 4.1.12-124.14.1. The same guest
OS is not necessarily certified with UEK 4.14.35-1 (Release 5). Certifications
of the guest OS with applicable major releases of UEK are listed individually.
- What is the difference
between a “Certified for Joint Support” HCL status and a “Certified
for Oracle Support” HCL status?
Certified for Joint Support: Oracle Linux or Oracle VM was
rigorously tested on the hardware or hypervisor (referred to as platform)
with the participation and/or approval of the platform partner, and
both Oracle and the partner fully support the environment. Customers
deploying Oracle Linux or Oracle VM on this platform benefit from
streamlined joint support. If a customer encounters any problem with
Oracle Linux or Oracle VM that involves the underlying platform, the
customer will open a service request with Oracle Support. Oracle Support
will engage the partner if necessary, and seamlessly manage a joint
resolution. For support on Oracle platforms, no third-party vendors
are involved in the support process. These configurations are fully
supported by Oracle.
Certified for Oracle Support: Oracle Linux or Oracle VM
was rigorously tested with the same standards as Certified for Joint
Support and Oracle fully supports Oracle Linux and Oracle VM on this
platform, however a collaborative support program is not in place
with the partner for this platform, and the partner may not consider
this a supported environment. Oracle provides support for Oracle Linux
and Oracle VM, but a resolution to issues related to underlying platform
drivers or other platform -specific issues cannot be guaranteed.
- How do I get started?
Please contact us at
email@example.com for more information about joining The
Oracle Linux and Virtualization Hardware Certification Program.
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