Festival ICT, 24 Nov 2011

1. Architecture SAN
LE HARDWARE

2. Historique
1992-2001
Serveurs Piedestal
2001-2007
Premier SAN Wintel
2007
EVA 8000
Déménagement Finto
EVA 8000 + EVA 8100

3. Buts et objectifs
 Mettre à disposition
 Des ressources virtuelles: processeurs, mémoire
 Sous la forme de machines virtuelles
 1 à 4 CPU’s ; 32 ou 64 bits ; 2,4 à 3 Ghz ; Mémoire => 6 GB
 System disk : 40 GB
 Data disks: suivant application
 Windows 2008; Windows 2008 R2; Windows 7
 Configurations spécifiques
 Capacité du stockage: brut: 90 TB

4. Disponibilité élevée
 Redondance

 Duplication d'un ensemble en vue d'assurer un fonctionnement
(presque) sans interruption
 En cas de dysfonctionnement d'un ensemble matériel de type
blade, un second blade prend le relais presque instantanément.

5. Disponibilité, le comment:
 Host (serveur vmware esx 4.1)
 Minimum 4 connexions réseau (Lan)
 Vmotion
 Console
 LAN (2)
 Virtual Center (serveur de gestion de la virtalisation)
 2 connexions réseau
 Serveurs Virtuels
 2 connexions réseau

6. Disponibilité: le réseau IP

7. Les SAN’s
 Type: HP EVA 8000 et HP EVA 8100
 Controller
 HSV2x0
 Disks
 Dual Ports 2 Gb
 FC disks (10k et 15k)
 FATA disks
 Disk Shelfs
 14 disks per enclosure

8. EVA’s FC Intern Connections
1 1
1 to 14
FC FC
loop to M5314A
to loop
sw sw
9 9
1 to 14
2A 2B 2A 2B
FC Cache Mirroring
HSV210 HSV210
FC Host Ports Controller controllers can use Controller FC Host Ports
2GB Cache device ports for mirroring 2GB Cache
if mirror port fails
1A 1B 1A 1B
each controller
M5314A
can connect
1 1 to each port of
up to 18 - M5314As 1 to 14
FC FC each drive
up to 240 drives loop to
M5314A
to loop
sw sw
9 9
1 to 14

9. EVA’s Extern connections

10. San Director
 HP Storage Works 4/256 SAN Director
 4 Gbits
 64 ports (max 128)
 Auto-speed negociation
 Disponibilité 99.999

11. Blade Servers
 (Serveurs lame)
 Légers
 Un maximum sur une même carte
 Partage des boitiers, ventilateurs, alimentations
 HP BL460c, HP BL680c
 2,4 – 3 GHz
 2 – 4 CPU
 12 – 32 GB Memory
 (182 x 56 x 510 mm)

12. Blade Enclosure

13. En route vers le Cloud…
 Une première étape: la virtualisation

14. Serveur Physique

15. Virtualisation
LAN

16. Physique vs Virtuel
Unmodified Virtual Machines
Application
Unmodified
OS ESX Server
(X86) Physical Server
Virtual
Hardware

17. ESX server (4.0) –VM’s
 Operating System
(hypervisor)
 Runs directly on
hardware
 Manages resource
allocations
 Strong fault and
security isolation

18. Hardw mapping /connections
 Virtualization layer maps virtual hardware to real hardware
 Can multiplex several virtual hardware to a single real HW

19.  CPU Resource Management
 Dynamic allocation of CPU Resources
 Memory resource management
 Dynamic allocation of memory, swapping, ballooning ,page
sharing
 Network Resource Management
 Allocation of network bandwidth per virtual machine

20. Fonctionnalités
 VMotion
 HA
 High Availability
 DRS
 Distributed ressource scheduler
 Snapshots

21. VMotion™ Technology Changes The Game
• Optimal Utilization
• Zero-downtime maintenance
• Fast Reconfiguration
• Continuous Workload
Consolidation
VMotion technology lets you move live, running virtual machines from
one host to another while maintaining continuous service availability.

22. Hardware Upgrade
WM Server WM Server Win2K APP1
DNS / DHCP SQL Server SQL Server
ESX Server ESX Server 2 ESX Server
1 3
Call for
Upgrade

23. Hardware Upgrade
Upgrade and service production hardware through VM migration
with zero downtime and 100% customer transparency
Always Powered On
WM Server Win2K APP1
DNS / DHCP SQL Server
ESX Server ESX Server 2 ESX Server
1 3
Powered Off

24. WM Server WM Server Win2K APP1

Upgrade Finished
Powered On again
DNS / DHCP SQL Server SQL Server
ESX Server ESX Server 2 ESX Server
1 Upgraded and 3
Powered On

25. Upgraded physical servers with zero downtime and 100%
customer transparency
WM Server Win2K APP1
DNS / DHCP SQL Server
ESX Server ESX Server ESX Server
1 2 3

26. Distributed Resource Scheduler
VMotion Enables High
Utilization Across the Data
Citrix
Center
SQL Server
•Resource Management
SAP
DNS/DH
CP •Cross-hardware optimization
Active
•Load Balancing
Dir Apache
Oracle
ESX Sever 1 ESX Server 2 ESX Server 3

27. Distributed Resource scheduler
Dynamically manage workloads across a heterogeneous environment, in
response to an unexpected increase e in utilization
Exch Citrix
Server
SQL SAP DNS/DHCP
Server
Oracle Apache
ESX Server 1 ESX Server 2 ESX Server 3

28. Distributed Resource scheduler
Dynamically manage workloads across a heterogeneous environment, in
response to an unexpected increase in utilization
Exch Citrix
Server
SQL DNS/DHCP
Server SAP
Oracle Apache
ESX Server 1 ESX Server 2 ESX Server 3

29. High Availability
ESX Server 1 ESX Server 2
VM4 VM5
VM1 VM2
Shared
disks
arrays, or
VM3 ON SAN storage
ON VM6
VM1 VM2
VM1 VM3
VM2
OFF
ON VM3
VM6
VM4
VM5
Switch Switch

30. Snapshots
 Migrations softwares…
 Démo

31. Avantages
 # serveurs virtuels par host physique
 Répartition de la charge sur # hosts
 Disponibilité
 Réponse plus rapide pour des demandes de serveurs

32. Restrictions
 Software Compatibility
 Hardware restrictions & compatibility
 USB (software keys) , scsi, serial ports..