1. Windows Azure Internals
Rafael Godinho
Arquiteto de Soluções – Windows Azure
http://blogs.msdn.com/rafaelgodinho

5. Server Datacenter
Kernel Fabric Controller
Processo Serviço
SQL Exchange SQL
Word
Server Online Database
Windows Kernel Fabric Controller
Server Datacenter

6. Rede do DC

7. Spine
TOR TOR TOR TOR TOR
Nodes
…
…
…
…
…
…
…
…
…
…
Rack

8. Arquitetura DLA (Antiga) Arquitetura Quantum10 (Nova)
DC Router
DCR DCR DC Routers
Access
Routers
BL BL BL BL
Aggregation +
LB
AGG AGG AGG AGG AGG AGG
Spine Spine
… Spine Spine
LB LB LB LB LB LB LB LB LB LB LB LB
TOR
20Racks
TOR TOR TOR
20Racks
TOR TOR TOR TOR TOR TOR
20Racks
TOR TOR TOR
20Racks
TOR TOR
TOR TOR
… TOR TOR
Digi Digi Digi Digi Digi Digi Digi Digi Digi Digi Digi Digi Digi Digi Digi
…
40 Nodes 40 Nodes
… 40 Nodes 40 Nodes 40 Nodes
… 40 Nodes 40 Nodes 40 Nodes
… 40 Nodes 40 Nodes 40 Nodes
… 40 Nodes 40 Nodes 40 Nodes
… 40 Nodes
APC APC APC APC APC APC APC APC APC APC APC APC APC APC APC
120 Gbs 30,000 Gbps

11. Windows
Imagens Fabric Controller Deployment
Server
Parent
Windows Azure Role Role
RoleRole
Maintenance OS PXE
OS Images
Images
Images
Images
Server
Windows
FC Host
Azure
Agent Node
OS
Windows Azure Hypervisor

12. System Center
Windows Azure Portal
Fabric Controller
US-North Central Datacenter

15. Role B
my.cloudapp.net Worker Role
Qtd: 2
Update Domains: 2
Tam: Medium
my.cloudapp.net
Load
Balancer

17. Node (físico)
Guest Guest Guest Guest
Partition Partition Partition Partition
Role Instance Role Instance Role Instance Role Instance
Guest Guest Guest Guest
Agent Agent Agent Agent
Comunicação Segura
Host
Repositório de Imagens (OS
FC Host Agent
VHDs, pacotes dos serviços)
Fabric Controller (Primário) Fabric Controller (Replica) … Fabric Controller (Replica)

18. Role Virtual Machine
C:
Resource Disk
VHD Dinâmico
Windows VHD Role VHD

19. OS Volume
Resource Volume
Role Volume
Guest Agent
Role Host
Role Entry Point

22. Virtual Disk Driver Disk
Blob
Local RAM Cache
Local On-Disk Cache

23. Role Virtual Machine
D:
C: E:, F:, etc.
Disco de Recursos
OS Disk Disco de Dados
VHD Dinâmico
RAM
Disco Local

26. Front- Middle
End-1
End-2 Tier-3
Tier-1
Tier-2
Front- Front-
End-1 End-2
Middle Middle Middle
Tier-1 Tier-2 Tier-3
Update Update Update
Domain 1 Domain 2 Domain 3

29. Problema Detecção Resposta
Instância da Role cai FC monitora guest agent FC reinicia a role
Guest VM ou agente cai FC monitora queda do guest agent heartbeat FC reinicia VM
Host OS ou agente cai FC monitora queda host agent heartbeat FC tenta recuperar o node
FC realoca nodes para outros nodes
Falha de hardware Host agent avisa FC FC realoca nodes para outros nodes
Marca node como “out for repair”

30. Guest Agent Guest Agent
Heartbeat Heartbeat Timeout
25 min 5s 10 min
Guest Agent
Guest Role Instance Load Balancer
Role Instance Load Balancer
Agent Heartbeat “Unresponsive” Timeout Heartbeat Timeout
Connect 15s 15s
Indefinido 15 min 30s 30s
Timeout
Início da
Role Instance Role
Instance
Role Role
Instance Instance
Start Ready

31. Front- Front-
Front-
End-1 End-2
End-2
Middle Middle
Middle Middle
Middle
Tier-1 Tier-2
Tier-2 Tier-3
Tier-3

33. Role B
my.cloudapp.net Worker Role
Qtd: 2
Update Domains: 2
Tam: Medium
my.cloudapp.net
Load
Balancer
10.100.0.36 10.100.0.185
10.100.0.122 10.100.0.191

34. Front- Front-
Front-
End-1 End-2
End-2
Middle Middle
Middle Middle
Tier-1 Tier-2
Tier-2 Tier-3
Fault Fault Fault
Domain 1 Domain 2 Domain 3

35. Rafael Godinho
Arquiteto de Soluções – Windows Azure
http://blogs.msdn.com/rafaelgodinho