AR/DAT (Autonomous Regions with Domain Address Translation) Native FC Solution
-
Upload
montana-bond -
Category
Documents
-
view
12 -
download
1
description
Transcript of AR/DAT (Autonomous Regions with Domain Address Translation) Native FC Solution
AR/DAT(Autonomous Regions with Domain Address Translation)
Native FC Solution
LightSand Communications
Why thinking AR?• It Resolves
– Scalability Issue• Number of switches in the fabric
• Number of devices in the fabric
• Recourses: NS, Zoning database size
– Traffic disruption• Fabric reconfiguration
• Node join / leave
– SAN over WAN? • Latency, bandwidth and more
• AR are already in standard, just needs to be more precisely defined
• Utilizes existing routing mechanisms and services
• Absolutely backward compatible
• Brings the same functionality as other approaches
Media Independent Backbone
BB: FSPF, NS, …
FC-PH .
FC Emulation .
Physical media
AR0 - Backbone
AR1 AR2
BSW1 – Boarder Switch1
BSW2 – Boarder Switch2
• AR1,AR2 – are Fabrics absolutely compliant with FC-SWx, FC-GSx
• The main functionality absorbed by BSW and optional for implementation
Who cares – what’s outside?
FC Switch
Director
FC Switch
Server
Storage
Server
BSW
0xFFFFVirtual devices
In xx Domain Space
E-Port
ARx
DID = xx
BSW – Termination Point
ARx AR0Backbone
DID = x DID = yFabric Services
BBServices
FSPFAR
FSPFBB
Address Mapper (DAT)
Zoning
NS BB NS
Local and Remote Topologies
WAN
AR2Department 2
AR1Department 1
AR0BB
AR3Backup Facility
AR/DAT Advantages• Native FC Architecture based on current standards
• No changes in FC-PH or FC-FS
• AR are independent full function FC Fabrics
• 100% backward compatibility
• BSW takes care of all inter-AR communications
• BSW is optional functionality
• Virtually endless scalability
• Improved security, manageability and performance