The first part of this presentation gives an overview of OVM characteristics and functionality. The rest of the slides describe the following scenarios: 1) OVM on commodity Hardware 2) OVM on Oracle Database Appliance 3) OVM on Exadata Machine

1. BASEL BERN BRUGG DÜSSELDORF FRANKFURT A.M. FREIBURG I.BR. GENEVA
HAMBURG COPENHAGEN LAUSANNE MUNICH STUTTGART VIENNA ZURICH
Oracle Virtual Machine
On Commodity Hardware & Oracle Engineered Systems
Emiliano Fusaglia LS-IMS E1638

2. Agenda
OVM on Commodity HW & Engineered Systems2 3/27/2016
1. Introduction
Milestones of Virtualization technology
Overview of OVM x86
2. OVM on Commodity HW
OVM Stand Alone Architectures
OVM Shared Architecture
3. OVM on most popular Oracle Engineered Systems
OVM on Oracle Database Appliance
OVM on Exadata

3. OVM on Commodity HW & Engineered Systems3 3/27/2016
Introduction

4. Milestones of Virtualization technology
OVM on Commodity HW & Engineered Systems4 3/27/2016
Thanks to the Virtualization technology it has been possible:
To abstract the underneath HW and replace expensive SMP systems with
commodity hardware.
To dynamically and elastically allocate resources to the applications.
To live migrate servers on different HW even across data centers.
To reduce the time to market from days to minutes using pre-built VMs and
Templates.
To consolidate independent projects on the same infrastructure without
compromising performance, security and independent lifecycles.

5. Most popular Virtualization Technologies
OVM on Commodity HW & Engineered Systems5 3/27/2016
Proprietary Open Source
Proprietary
Proprietary
Proprietary
Solaris Containers
Open Source Open Source
Open Source
Personal usage
Enterprise usage
Proprietary

6. Overview of OVM x86 1/2
OVM on Commodity HW & Engineered Systems6 3/27/2016
+ =
Oracle VM ManagerXen Hypervisor

7. Overview of OVM x86 2/2
OVM on Commodity HW & Engineered Systems7 3/27/2016
Oracle VM Server incorporates Xen
Hypervisor, developed and maintained as
free and open-source software. It runs as
most privileged domain (Dom0) on the hosts
which are part of the virtual server farm. The
hypervisor responsibilities include abstracting
elements from the physical machine, CPU
scheduling and memory management of all
Guest VMs. Oracle VM Server includes
Oracle VM Agent, responsible to
communicate with Oracle VM Manager.
Oracle VM Manager is a web based
management console, developed and
maintained by Oracle to administrate Oracle
VM Servers, VMs, Templates, ISO images etc.
Oracle VM Manager runs independently and
separately from the rest of OVM infrastructure
and it is not a mandatory components. In fact
the OVM farm can be entirely managed using
Xen commands.
+

8. OVM x86 on Oracle Database environment
OVM on Commodity HW & Engineered Systems8 3/27/2016
For long time beyond all licensing restrictions, the usage of the virtualization has been
discouraged due to the non-optimal I/O performance.
Today Oracle is promoting OVM on its Top Database Engineered Systems (Exadata,
ODA) what has changed?
The implementation (starting from OVM 3.1) of the PCI device virtualization technology:
Single Root I/O Virtualization (SR-IOV).

9. OVM x86 on Oracle Database environment
OVM on Commodity HW & Engineered Systems9 3/27/2016
SR-IOV is a PCI device virtualization technology that allows a single PCI device to
appear as multiple PCI devices on the physical PCI bus: the real physical device is
called Physical Function (PF) while the others are called Virtual Functions (VF). The
purpose of this is for the hypervisor to directly assign one or more of these virtual
functions to a virtual machine using Intel VT-D technology: the guest can use the virtual
function as any other directly assigned PCI device.
Source: Citrix Xen Internet site http://support.citrix.com/article/CTX126624
What does Single Root I/O Virtualization (SR-IOV) do?

10. Single Root I/O Virtualization (SR-IOV)
OVM on Commodity HW & Engineered Systems10 3/27/2016

11. OVM on Commodity HW & Engineered Systems11 3/27/2016
OVM on Commodity Hardware

12. OVM on Commodity HW & Engineered Systems12 3/27/2016
OVM Stand Alone Architecture

13. OVM on Commodity HW & Engineered Systems13 3/27/2016
OVM Shared Architecture

14. OVM on Commodity HW & Engineered Systems14 3/27/2016
OVM on most popular Oracle
Engineered Systems

15. Why OVM on database Engineered Systems?
OVM on Commodity HW & Engineered Systems15 3/27/2016
OVM on Oracle Database Appliance
– Oracle Database Licensing optimization
– Leverage HW utilization with Solution-in-a-Box
– Consolidate multiple Applications on one system
OVM on Oracle Exadata Machine
– Best Database Cloud environment with up to 64 Grid Infrastructure clusters
– Database Consolidation & Isolation with independent lifecycles.
– Dynamic resource allocation

16. OVM on Commodity HW & Engineered Systems16 3/27/2016
OVM on Oracle Database Appliance
Unique OVM characteristics:
1) Dom Base is a privileged VM
with direct access to the shared
storage. This guarantees almost
native I/O performance to the
databases.
2) No Oracle VM Manager is
available, Xen commands have
been included on the oakcli CLI
framework.

17. OVM on Commodity HW & Engineered Systems17 3/27/2016
OVM on Exadata
Unique OVM characteristics :
1) Domain C<x> are privileged
VMs with direct access to the
InfiniBand network. This
guarantees almost native I/O
and Network communication
performance to the databases.
2) No Oracle VM Manager is
available at this date, Xen
commands should be used to
manage the virtualization layer.

18. OVM on Commodity HW & Engineered Systems18 3/27/2016
OVM on Exadata – Zoom Storage Cell

19. Emiliano Fusaglia
Principal Consultant
Tel. +41-79-909 7213
Emiliano.Fusaglia@trivadis.com
3/27/2016 OVM on Commodity HW & Engineered Systems19

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Bezeichnung Präsentation20 10.09.2015
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