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