BRKVVT-2506 Virtual on Cisco Unified Communications

8/8/2019 BRKVVT-2506 Virtual on Cisco Unified Communications

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Virtualisation and UnifiedCommunications

BRKVVT-2506

2009 Cisco Systems, Inc. All rights reserved. Cisco PublicPresentation_ID 1


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Agenda

Data Centre Trends

Why Virtualise

Solution Goals and Design Process

Unity on VMware Solution

Performance, Deployment, Support

2009 Cisco Systems, Inc. All rights reserved. Cisco PublicBRKVVT-2506 2


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Data Centre Trends



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Data Centre Evolution

Data Centre 1.0 Data Centre 2.0 Data Centre 3.0

Centralised / Mainframe

Virtualised and

Client-Server andDistributed Computing


CentralisedDecentralised

Service-Oriented

Consolidated

60s thru 80s 90s thru 2004 2005


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Data Centre 3.0 Architecture



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X86 Industry Focused on Virtualisation

85%85%

Virtualisation Overhead

EPT,100%100%

100%100%

55%55%

70%70%

85%85%

45nm45nm

VMDq Intel VT-d

55%55%

70%70%

45nm45nm

Next generation IntelNext generation InteluArchitectureuArchitecture

VPID,VMDq2

70%70%

100%100%

85%85%

QuadQuad- -Core IntelCore IntelXeon ProcessorsXeon Processors

Virtualisation Overhead

Intel VT-x,FlexPriority


uArchitectureuArchitecture

(Penryn)(Penryn)

2007 / 2008 2008 / 2009

(Nehalem)(Nehalem)

Intel Xeon 5100,Intel Xeon 5100,

5300, 73005300, 7300

2006 / 2007

Roadmap will continue to deliver higher raw performance (Moores Law), and Roadmap will continue to deliver higher raw performance (Moores Law), and architectural enhancements to improve efficiency inarchitectural enhancements to improve efficiency in virtualised virtualised environmentsenvironments

All timeframes, dates, and products are subject to change without further notification


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Increasing Server Virtualisation Adoption

VM Penetration of 61%

20%

40%

nsta e or oa s


0%2005 2007 2009 2011 2013

7%

Source: Gartner 2007, Cloud Computing Trends and Directions.


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VMware ESX Overview



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VMware Infrastructure Overview

The market leading highperformance virtualisation product

Allows customers to pool serverresources and consolidate tofewer physical servers

Innovative features bring a newlevel of agility and intelligenceto server compute

Production roven stable


and matureVMware certifies servers andstorage for use with VMwareESX software


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Hardware Abstraction

Hardware abstractionbetween guest VM and

CPU

Memory

Disk I/O

Network I/O



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VMware VI Client



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Virtual Machine Hardware



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Why Virtualise



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Why Virtualise

Significant TCO reductionCAPEX

OPEX

Supports Green Initiatives

Increased operational flexibilitiesReduce provisioning time

Simplified backup and recovery


DR/BC opportunities with VMwareSite Recovery Manager


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Virtualised Unity Carbon Footprint

15,000 user Unity deploymentwith Speech over 3 years

Eliminates 15000 kgs CO2emission per year

Equal to removing 3 large family carsfrom the road

Equal to planting 6000 trees

Equals 48 Hectares of pine plantation


qua s s o p ne p an a on

Equals 300,000 black balloons


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Solution Goals and Design Process



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Solution Goals

Deliver significant TCO reduction to the broadest rangeof customers possible

Provide a reliable solution with predictable performanceand scalability

Target customers with existing investments andexperience in data centre virtualisation

Introducing as little change as possible to Cisco Unity in


terms of


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Solution Design Process

1. Know the applications performancecharacteristics

CharacteriseApplication

2. Understand the virtualisation environment3. Propose a virtualised resources

allocation strategy

4. Test and validate the proposedresource strategy

Is the desired performance achieved?

CharacteriseEnvironment

ResourceAllocation

Test &


Is there a less restrictive way to achievethis level of performance?

5. Repeat until the most favorablecost/benefit ratio is achieved

Validated

Validate


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Characterisation of Cisco Unity

Performance expectation:The end user must not erceive a difference between virtualisedand non-virtualised Unity.

Performance concern:The real-time audio component is performance sensitive.

Performance characterisation:CPU & Memory: Port scalability tied directly to CPU availability.


Disk I/O: Not usually intensive. Edge Case: Enabling diagnostictracing will slow conversations if sufficient I/O is not available.

Network I/O: Streams real-time audio (UDP). Communicationwith Domino and Exchange are TCP based and will retransmit.


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Resource Allocation: The Balancing Act

Resource allocation is an exercisein cost/benefit analysis.

Dedicating specific resources tothe real-time VM affectscost/benefit because:

Efficiency of overall resourceutilisation may be affected


Some VMware value-add featurescant be used as they are incompatiblewith strict partitioning techniques


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Four Core Resources

CPU

Memory

Disk


Network


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Resource Allocation: Compute

CPUUnre ulated

Proportional Shared CPU Reservations / CPU Shares

Strict Partitioning CPU Affinity

MemoryUnre ulated


Proportional sharing Memory SharesStrict Partitioning Memory Reservations


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Resource Allocation: Network

Network Ingress (NIC)Unre ulated

Proportional shared Traffic Shaping

Partitioned dedicated network adapter



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Resource Allocation: Disk

Fabric Ingress (HBA, CNA, NIC, etc)

Unregulated

Proportional shared weighted shares

Partitioned dedicated adapter

FabricUnregulated


Storage Array

Unregulated

Proportional shared I/O QoS

Partitioned dedicated disks


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Unity on VMware Solution



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Unity on VMware Solution Overview

Support for Cisco Unity 7.0 on VMware ESX 3.5

-Hands off approach to hardware leveraging VMwareHardware Compatibility Matrix

Supports a broad range of Intel Xeon based servers

Cisco Unity can run side-by-side with third-party applications

Supports all features of Unity


Cisco Unity design does not changeNo changes to licensing or SKU required


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Solution Components

Predictable host infrastructureVMware software

Servers

Storage

Virtual machine templatesDefine virtual hardware configuration


Resource managementAllocating host resources to virtual machine

Resource / performance protection

Performance monitoring


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VMware ESX Software

Support for VMware ESX 3.5 and later

Support for VMware ESXi 3.5 and later



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Host Server Hardware

Hands Off approach in favor of VMware HCL

Supported CPU list published in Design Guide

Cisco will update supported CPUs as needed

MemoryNo specific requirements


Fibre Channel HBA

Fibre Channel over Ethernet (FCoE)

NetworkGigabit Ethernet or greater


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Standardised VM templates

Templates define standard VM hardware configurations

VirtualHardware

UnityTemplate 1

Unity Template2

ExchangeTemplate

Voice RecTemplate

vCPU 4 2 1 1

vMemory 4 GB 4 GB 4 GB 2 GB

vNIC 1 1 1 1


vDisks 4 X 24 GB 4 X 24 GB2 24 + 1User Defined 1 X 24 GB

Limits 144 Ports / 15000 Users48 Ports / 5000

Users 7500 Mailboxes 24 Ports


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Unity Resource Allocation: Compute

CPU AffinityPredictable erformance

Hard requirement to scale and safely support co-residence

Memory ReservationPredictable performance



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Unity Resource Allocation: Network

Customer designs and owns performance

documentation to aid with design

Strategic directionNexus 1000V with QoS


UCS Virtualised Adapter with VMDirectPath


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Unity Resource Allocation: Disk I/O

Customer designs and owns performance

Cisco provides disk I/O profile documentation

to aid with designCisco provides supported performancethresholds leveraging PerformanceMonitor / CUPID



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Performance



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Voice Quality: Mean Jitter

22.42.8

More

m s

)

Hardware

0 100 200 300 400 500 600 700

00.40.81.21.6

Frequency

J i t t e r

(

Frequency

More

Virtualised


0 200 400 600 800 1000 1200

00.40.81.21.6

22.4

2.8

Frequency

J i t t e r

( m s )

Frequency


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Voice Quality: Max Jitter

1518

More

s )

Hardware

Virtualised

0 100 200 300 400 500 600 700 800

0369

12

Frequency

J i t t e r

( m

Frequency


0 50 100 150 200 250 300 350 400

1

4

7

10

13

16

19

Frequency

J i t t e r

( m s

)

Frequency


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Deployment and Redundancy



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Classic Deployment



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Virtualisation Deployment

Hypervisor Hypervisor


Hypervisor Hypervisor


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Virtualised Deployment / Redundancy

VMware ESX


VMware ESX


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Performance Troubleshooting and Support



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Unity Performance Troubleshooting

CUPID (perfmonwrapper) is the

primary toolVirtualisation customersrequired to run CUPID

at all timesCisco will provide


Used by TAC todetermine if system isoperating within threshold


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ESX General Performance Data



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ESX Performance Troubleshooting

esxtop in the definitivemonitoring and

troubleshooting toolMore than 150 differentparameters spanning

CPU, Memory, Disk I/O,and Network I/O


troubleshoot with esxtop


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Support Policies

Host infrastructure must comply with VMwareESX HCL.

Cisco TAC understand how to verify CPUand Memory Requirements.

Cisco TAC will not troubleshoot below the Unityvirtual machine.

Cisco TAC does not assist with configuration/


provisioning of host infrastructure.

l h


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Support Escalation Path

Customer coordinates vendor support

TSANet Leveraged by Cisco TAC


Customer

VM U d P li


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VMware Update Policy

ESX ServerRelease Description

ReleaseNumbering

CiscoSupport

Major Functional enhancements orextensionsLeft of 1 st decimal

(5.0 -> 6.0) At release

MinorLimited amount of new

optional features

Right of 1 st decimal

(5.0 -> 5.1) At release

Right of 2 nd decimal

5.0 -> 5.1


Patch Addresses security, newhardware, critical defectEach patchnumbered At release

VM V l dd F S


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VMware Value-add Feature Support

Features evaluated on a case by case basisSu ort matrix ublished to Desi n Guide for Cisco Unit

VirtualisationVMotion is the killer app but not appropriate forUDP/RTP streaming media

Current CPU Affinity requirement rules out someautomated features


Distributed Resource Management

Distributed Power Management

High Availability


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Wh t d th f t h ld


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What does the future hold



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Summary


Summary


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Summary

Barriers to the virtualisation of real-timeapplications are breaking down

Stringent guidelines are required to ensure thenecessary performance

Unity is our first supported application on VMwareSome VMware features are not currently


Resources


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Resources

Design Guide for Cisco Unity Virtualisation:http://tinyurl.com/ladezf

Cisco Unity and VMware Storage AreaNetworking page:http://tinyurl.com/mx2jd

VMware virtualisation 101:

http://www.vmware.com/virtualization/



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Q and A


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