Enable Multi Tenant Clouds Network Virtualization. Dynamic VM Placement. Secure Isolation. … High Scale & Low Cost Datacenters Leverage Hardware. High

www.buildwindows.com

Enabling multi-tenancy and converged fabric for the cloud using QoS

Charley WenRichard WurdackMicrosoft Corporation

SAC-439T


Windows Server 8 is Cloud Optimized

Enable Multi Tenant CloudsNetwork Virtualization. Dynamic VM Placement. Secure

Isolation. …

High Scale & Low Cost DatacentersLeverage Hardware. High Availability. SMB2. Low Cost Storage.

…

Manageable & ExtensibleWMIv2. PowerShell. Extensible Switch. …


Management OS

Traditional contention challenges

Tenant A

Storage

Clustering

TenantB

Tenant C

1 Gbps

Management

Live Migration

Hyper-V Extensible Switch

!


Management OS

Overprovisioning does not help multi-tenancy

Tenant A

Storage

Clustering

TenantB

Tenant C

1 Gbps

Management

Live Migration

Hyper-V Extensible Switch!

1 Gbps

…


Management OS

Converging your fabric still doesn’t help

Tenant A

Storage

Clustering

TenantB

Tenant C

10 Gbps

Management

Live Migration


!


Overprovisioningis a solution of the past.


Use QoS in Windows Server 8to enable multi-tenancy and converged

fabric.


QoS on Hyper-V

demoVM 1 VM 2 VM 3


∞ ∞???

Multi-tenancy


• Minimum Bandwidth• Overview• Design• Configuration

• Maximum Bandwidth

Tenant 2: Multiple VM Workloads


Multi-tenancy


Minimum Bandwidth Overview• Enforce bandwidth allocation performance

predictability• Redistribute unused bandwidth high link utilization

Service

Minimum

Bandwidth

VM 1

VM 2

VM 3

3 Gbps

4 Gbps

3 Gbps

4

5

4

5

4

5

3

3

4

3

2

6

2

2

6

2

8:00am 2:00pm 10:00pm

2 Gbps

12 Gbps

10 Gbps

8 Gbps

6 Gbps

4 Gbps


High Priorit

y

Relative Minimum Bandwidth

Normal

Priority

Critical

Assign weights if the importance of workloads in VMs is relative

Min BW %

Allows oversubscription

w=1 w=2 w=5



Silver Tenant

Strict Minimum Bandwidth


Bronze Tenant

Gold Tenant

Provision with absolute values if bandwidth guarantee is desired or it is easy to convey to tenants

However, no oversubscription

100Mb 200Mb 500Mb

1 Gbps


GoldTenant

Oversubscription with NIC Teams


GoldTenant

GoldTenant

500Mb 500Mb 500Mb

The maximum amount of bandwidth that can be guaranteed to VMs is the bandwidth of a member NIC in the NIC team.

Note: This is an invalid configuration! NIC Teaming

1 Gbps 1 Gbps


• Minimum Bandwidth• Overview• Design• Configuration

• Maximum Bandwidth



Multi-tenancy


Hosted VM

Maximum Bandwidth for Hosted VMs


Hosted VM

Hosted VM

<100Mb

WAN links are expensive

Cap VM throughput to the Internet to avoid bill shock

Internet


Maximum Bandwidth for Tenants


Unified Remote Access

Gateway

<100Mb

WAN links are expensive

Cap VM throughput to the Internet to avoid bill shock ∞

Internet

Intranet


Windows Server 8 Bandwidth Management

VM

VM

VM

VM

VM

!



VM

VM

VM

VM

VM

Capacity

Meter

Traffic Meter

PeakBandwidth Meter

Buffer

Reserved Bandwidth Meter

VM

VM

Data PathControl Path


Use Windows Server 8 QoS to enablemulti-tenancy and avoid

overprovisioning in your datacenter

Converged Fabric


• Overview

• Configurations

• Design

Converged Fabric

Data & storage networkHyper-V

servers

Application

Servers

File Servers

10GbE

10Gb

E

10GbE


Converged Fabric Overview

Data

Storage

Data Fabric

Storage

Fabric

TOR

10GbE

Converged Fabric

TOR

iSCSI

SMB

NFS

Fiber Channel


Minimum and Maximum Bandwidth are not just for multi-tenancy.

They can apply to any network adapter.


Converging on 10GbE (1)

Management OS

NIC Teaming

Storage

Clustering

10 Gbps

Management

Live Migration

A 10GbE port replaces multiple 1GbE ports

QoS policies apply outside VMs

Create multiple tNICs, each with its own minimum bandwidth policy


Converging on 10GbE (2)


Management OS

NIC Teaming

Hosted VM

Storage

Clustering

10 Gbps

Management

Live Migration

Alternatively, team multiple 10G NICs

Provide multiple vNICs, each with its own workload and QoS policy


Windows Server 8 even takes advantage of hardware to complement

software QoS.


QoS for Networking and Storage Convergence

demo Management OS

10 Gbps

∞

VM 3

???

Storage

Clustering

Management

Live Migration



VM

VM

VM

VM

VM

Capacity

Meter

Traffic Meter

PeakBandwidth Meter

Buffer

Reserved Bandwidth Meter

VM

VM

Data PathControl Path


Data Center Bridging on Windows Server 8

LAN Miniport

iSCSI Miniport

Windows Network

Stack

Windows Storage Stack

Application

Winsock File I/O API

Windows Server 8QoS

DCB

Traffic Classificati

on

ApplicationApplicationApplicationPowerShell

WMI

Up to 8 classes


Data Center Bridging on Windows Server 8

LAN Miniport

Windows Network

Stack

Windows Storage Stack

Application

Winsock File I/O API

Windows Server 8QoS

DCB

Traffic Classificati

on

ApplicationApplicationApplicationPowerShell

WMI

Up to 8 classes

kRDMA


Use QoS in Windows Server 8 to enable converged fabric in your datacenter.


Windows Server 8 enables multi-tenancy and converged fabric without

costly overprovisioning.Windows Server 8 has great

management of QoS using PowerShell.

Great hardware support enables Windows Server 8 QoS.


Related sessions

• [SAC-430T] Designing the building blocks for a Windows Server 8 cloud

• [SAC-433T] Network acceleration and other NIC technologies for the data center

• [SAC-437T] A deep dive into Hyper-V networking

• [SAC-565T] Windows networking with PowerShell: A foundation for data center management


• Feedback and questions http://forums.dev.windows.com

• Session feedbackhttp://bldw.in/SessionFeedback

thank you

http://forums.dev.windows.com/

http://forums.dev.windows.com/

http://bldw.in/SessionFeedback

http://bldw.in/SessionFeedback

© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to

be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Documents

Enable Multi Tenant Clouds Network Virtualization. Dynamic VM Placement. Secure Isolation. … High Scale & Low Cost Datacenters Leverage Hardware. High