windows azure virtual machines
DESCRIPTION
Overview of Windows Azure Virtual Machines - the IaaS offering in the Windows Azure platform. The presentation covers the compute, storage and network features of Virtual Machines. It also describes how best to deploy Windows Azure cloud services and VMs.TRANSCRIPT
WINDOWS AZURE VIRTUAL
MACHINESNeil Mackenzie
Satory Global , LLC
Who Am I
• Neil Mackenzie
• Windows Azure Lead –Satory Global
• @mknz
• http://convective.wordpress.com
• Author: Microsoft Windows Azure Development Cookbook
• Microsoft MVP for Windows Azure
Agenda
• Windows Azure Overview
• Compute
• Connectivity
• Deployment
WINDOWS AZURE OVERVIEW
Windows Azure
• Microsoft’s public cloud platform
• Global availability
• Scale-out performance model
• Per-minute billing
• Pay-as-you-go, commitment discounts, Enterprise Agreement
• Paid support
Global Availability (Datacenters)
• North America• US East, US West, US North Central, US South Central
• Europe• West Europe (Amsterdam), North Europe (Dublin)
• Asia• East Asia (Hong Kong), South East Asia (Singapore• Announced: Japan East(Tokyo), Japan West (Kansai)
• China (Behind Great Firewall)• Beta: Shanghai
• Australia• Announced: New South Wales, Victoria
Compute Options
• Cloud Services• PaaS• IaaS (Virtual Machines)
• Windows Azure Web Sites
COMPUTE
Cloud Service
• Container for a scalable collection of related VMs• VMs can be heterogeneous (different sizes and OS)
• Cloud service has a single public IP address (VIP)• VIP is stable as long as there is a VM deployed into the service• VIP exists even if there is no public endpoint declared
• Multiple cloud services can be aggregated using a VNET• Each cloud service has its own VIP• VMs can access each other through the VNET
Windows Azure Virtual Machines
• VM• Various instance sizes
• Compute, RAM, # attached disks• Disks are fixed-format VHDs• Autonomic self-healing
• VM moved automatically if fabric controller detects failure of physical server
• Virtualization• Hyper-V• Microsoft manages Host OS• Customer manages Guest OS• Virtual layer metrics (CPU, I/O, etc.) exposed to Windows Azure
Management Portal
VM Images
• Gallery Images:• Windows Server 2008 R2, 2012• Linux ( CentOS, Ubuntu, Suse, OpenSuse)• SQL Server, BizTalk Server, SharePoint, …• Oracle (WebLogic, Java, …)
• VM Depot• Pre-configured OSS servers
• Custom Images• Upload images created on-premises
• Fixed-format VHD
Instance Sizes
VM Size Cores Memory
(GB)
Max Disk
s
Max IOPS
Extra Small Shared 0.768 1 1*500
Small 1 1.75 2 2*500
Medium 2 3.5 4 4*500
Large 4 7 8 8*500
Extra Large 8 14 16 16*500
High Memory (A5)
2 14 4 4*500
High Memory (A6)
4 28 8 8*500
High Memory (A7)
8 56 16 16*500
Disks
• Each VM comes with two disks:• OS disk: durable - persisted as page blob in Windows Azure Blob Storage (c:)• Temp Disk: ephemeral – hosted on the VM (d:)
• Additional data disks may be attached• Two 1TB disks per core• 500 iops per disk• Durable – persisted as page blob in Windows Azure Blob Storage• For HA, each disk has 3 local replicas and (optionally) 3 remote replicas
• Caching• Read/write – default for OS disk• None – default for attached data disks
Data Path for Disks
Source:http://bit.ly/18HLobl
High Availability
• Availability Set• Fault domain• Upgrade domain• Each VM has an associated fault domain and upgrade domain• 99.95% SLA when two or more VMs deployed in an availability set
• Fault Domain• Avoids single point of failure (“different racks”)
• Upgrade domain• Host OS upgrades happen one upgrade domain at a time
Deployment Options
• Windows Azure Management Portal• Scripting• PowerShell
• Cross-platform CLI
• Windows Azure Service Management REST API
• System Center
• RightScale
• Chef
CONNECTIVITY
Connectivity Options
• Virtual Network (VNET)• Private network• Hosts one or more cloud services• Provides network integration for PaaS and IaaS cloud services
• VPN• Windows Azure Gateway hosted in a VNET• Site-to-Site (IT Admin)• Point-to-Site (developer)
Network Topology
• VNET• Subnets• VPN Gateway
• Point-to-site VPN• Site-to-Site VPN
• DNS must be provided for name resolution in a VNET
• Cloud service• Single public VIP• Static as long as at least one VM is deployed in the cloud service
• VM• Single NIC• DIP allocated on a permanent lease - as long as VM deployed
Security
• Windows Azure load balancer• Ingress – allows only traffic on endpoints specified for VMs• Egress – allows all traffic
• Protocols• TCP, UDP only• ICMP is NOT supported for ingress (i.e., ping does not work)
• Firewall• Full control of firewall on each VM
• VNET is a security boundary
• Cloud service is a security boundary when not in a VNET
DEPLOYMENT
Cost
• Compute• Windows: 9 cents / hour / core• Linux: 6 cents / hour / core• Per-minute billing• No charge for de-allocated VMs
• Storage• 7 cents / GB / month (locally redundant)• 10 cents / million storage operations• Note that VHDs are stored in page blobs which are sparse (billing only for
used space)
• Egress• 60 cents / 10GB
Affinity Group
• Co-location feature inside a datacenter• Compute• Storage• VNET
• Mandatory for VNET
• Provides improved performance for integrated compute and storage
Workflow for Creating a Cloud Service• Create an affinity group in a specific datacenter
• Provides a logical name for a part of the datacenter• Provides lower latency between compute and storage
• Create a storage account in the affinity group
• Create a VNET in the affinity group
• Create a cloud service in the VNET
Workflow for Creating a VM
• Create a VM in the cloud service• Select instance size• Select OS image or existing VHD• Add endpoints (if desired)
• Load balanced / port forwarded• Create/add VM to availability set (if desired for HA)• Add one or more data disks (if desired)
Workflow for Creating VM Image
• Create VM in a cloud service
• Install and configure required software
• Windows VM - RDP in and invoke %windir%\system32\sysprep.exe
• Linux VM - SSH in and invoke: sudo waagent –deprovision
• On the portal, Capture the image• Automatically deletes the VM
%windir%\system32\sysprep
Creating Composite Applications
• Multiple cloud services• IaaS• PaaS
• On-Premises • Site-to-Site VPN
Summary
• Windows Azure Platform• Compute• Storage• Connectivity• Services
• Windows Azure Virtual Machines• Powerful IaaS offering• Full control over servers• Windows and Linux VMs• Deploy pre-configured Windows Servers, Oracle servers, and OSS
servers• Cost effective