1/11 t13/e05125r1 16 june 2005 sata tunneling over fibre channel ken hirata emulex corporation
TRANSCRIPT
1/11 T13/e05125r1 16 June 2005
SATA Tunneling over Fibre Channel
Ken HirataEmulex Corporation
2/11 T13/e05125r1 16 June 2005
Next Generation Back Ends: Tiered StorageNext Generation
Enclosures
Next GenerationStorage Controller FC 4G
FC 1G
FC 2G
FC 8G
Enterprise
Near line
LC FC 2G
FC IOC
FC IOC
FC Switch
SATA 6G
SATA 3G
SATA 1.5G
3/11 T13/e05125r1 16 June 2005
Tiered storage systems are becoming the enterprise standard Performance tier is predominantly Fibre Channel / SCSI
Nearline tier has chosen SATA
SATA and Fibre Channel disk drives are not easily integrated into Fibre Channel based enterprise storage systems Costly to replace and/or re-architect existing FC systems
Requires multiple skill sets to maintain
Impacts reliability with additional bridges and components
The Solution Leverage the universal transport nature of Fibre Channel by… Encapsulating SATA FIS’s as standard FC payloads and tunneling them
over FC infrastructure to… Integrate low cost SATA storage into existing Fibre Channel enterprise
storage systems!
The Problem
4/11 T13/e05125r1 16 June 2005
FC-SATASATA Tunneling Over Fibre Channel
Encapsulates SATA FIS as standard FC payload
Attaches SATA drive shelves via FC infrastructure
Integrates SATA drives with enterprise FCP/SCSI storage in a single infrastructure
Provides the same function as SAS/STP BUT, uses the mature FC infrastructure technology
5/11 T13/e05125r1 16 June 2005
SATA and FC Drives
Tunneled SATAand
Passthru FC
Existing Fibre Channel Infrastructure
Enclosures with Fibre Channel AND / OR SATA Drives
Existing FC IOC with firmware enhancements
FC/SCSI DrivesFAST Based
Storage
LegacyFC
Based Storage
SATA DrivesSATA
StorageTunneled Over FC
Connects SCSI/FCP drive shelves and SATA drive shelves through the same FC infrastructure
Encapsulates requests to SATA drives as FC-4 payloads and routes them through FC infrastructure
Routes requests to SCSI drives using standard FC
FC-SATA Ecosystem & Function
6/11 T13/e05125r1 16 June 2005
Today’s Fibre Channel Storage
Server
Server
Server
RAID
SCSI
FCP
FCP
Switch
FCP
FCP
SCSI Storage
Shelf
SCSI
SCSI
7/11 T13/e05125r1 16 June 2005
FC-SATA
SATA Storage
Shelf
FC-SATA Fibre Channel Storage- 1
SCSI
FCP FCP
SCSI payloads
map to SATA FIS, wrap in FC-SATA
SATA FIS
FC-SATA
SATA FIS
Server
Server
Server
FC-SATA RAIDSwitch
FCP
FCP
SCSI
FCP
SCSI
SCSI Storage
Shelf
8/11 T13/e05125r1 16 June 2005
FC-SATA
SATA Storage
Shelf
map to SATA FIS,wrap in FC-SATA
SATA FIS
FC-SATA
Virtualize, or simply pass through
SATA FIS
FC-SATA
Server
Server
Server
FC-SATA RAIDSwitch
FCP
FCP
SCSI
ATA
SATA FIS
SATA FIS
FC-SATA
FC-SATA payloads
FCP
SCSI
SCSI Storage
Shelf
FC-SATA Fibre Channel Storage- 2
9/11 T13/e05125r1 16 June 2005
FC-SATA Benefits
Protects investments by Leveraging existing FC infrastructure
Lowers System cost Enables use of lower cost components
Decreases time to market by Leveraging existing FC infrastructure Leveraging existing drive technology for all tiers
SCSI and/or SATA storage all with one interconnect
Leverages field proven Fibre Channel interconnect Stability Efficiencies Scalability Reliability
10/11 T13/e05125r1 16 June 2005
Provides choice of SATA system interfaces
SATA drives presented as SCSI Deployment without major changes to RAID code baseAll translations confined within the RAID controllerNew storage features can be used without changes to the shelvesUses T10 specified SCSI/ATA translation
SATA drives presented as ATANo translation of commands
No need to mask errors in SCSI
FC-SATA Benefits
11/11 T13/e05125r1 16 June 2005
Create a standard!
Study group has been authorized in T11
Review concept with T13 (today)
Finalize T11 Project Proposal in study group (early May 2005)
Approve T11 Project Proposal (June 2005)
FC-SATA Next Steps