Cisco Systems OL-12518-01 manual Service Offerings over Fcip

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Chapter 4 FCIP over IP/MPLS Core

Service Offerings over FCIP

Service Offerings over FCIP

Figure 4-5shows a typical service architecture for deploying FCIP over IP/MPLS.

Figure 4-5

Local

Data Center

SAN

FCIP over IP/MPLS Architecture

Remote

Data Center

SAN

Gateway

 

Gateway

FCIP

IP/MPLS

FCIP

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The FCIP gateway is the key component of the overall architecture.

Some typical uses of FCIP to provide SAN extension services are as follows:

•Asynchronous data replication—Enables low recovery point objective (RPO) applications between intelligent storage arrays using proprietary replication software. Network latency does not affect application performance the way it does with synchronous replication. You may need to tune the replication software or upper-layer protocol to ensure optimum use of the FCIP link.

•Remote tape vaulting—Enables remote backup for disaster recovery using tape or disk. Tape applications typically allow a single outstanding I/O operation, which limits throughput on long distance links. Write Acceleration and optionally compression techniques can help to optimize throughput in these situations.

•Host initiator to remote pooled storage—Enables access to FC-attached pooled storage arrays in another site or data center.

Service Offering Scenario A—Disaster Recovery

A customer wants to use FCIP to implement disaster recovery solutions for their remote sites. Corporate HQ is used as a primary site and data is replicated across the SP IP/MPLS network for business continuance and disaster recovery. The same setup can be used to implement backup and restore applications. Figure 4-6shows a typical hub-and-spoke setup where customer SAN traffic can be transported over the SP IP/MPLS network.

 

 

Data Center High Availability Clusters Design Guide

 

 

 

 

 

 

OL-12518-01

 

 

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Contents A P T E R OverviewSAN Extension Through SP Network Typical Customer RequirementsCompression Support in Cisco MDS CompressionCompression Modes and Rate 2shows a comparison of the Cisco compression solutionsSecurity Cisco Compression SolutionsVPNSM-DES, 3DES MDS MPS-DES, 3DES, AES192 Cisco Encryption SolutionsWrite Acceleration Using Fcip Tape AccelerationTCP Parameters TCP OperationsTCP Window Size TCP Maximum BandwidthTCP Minimum Available Bandwidth Cisco Round Trip TimeIPS Module Cisco Fcip Cisco MDS CPE Selection-Choosing between the 9216i Multiprotocol Services ModuleQoS Requirements in Fcip Applications Synchronous ReplicationAsynchronous Replication Service Offering Scenario A-Disaster Recovery Service Offerings over FcipFcip over SP IP/MPLS Core for Disaster Recovery Solutions Service Offering Scenario B-Connecting Multiple SitesSP Mpls Service Offering Scenario C-Host-based MirroringCPE Mpls VPN CoreMpls VPN for Storage Architecture Using VRF VPNsTesting Scenarios and Results Lab Setup and TopologyTest Objectives MP BGP Configuration-PE1 VPN VRF-Specific ConfigurationsGigabit Ethernet Interface Configuration-PE2 Gigabit Ethernet Interface Configuration-PE1VRF Configuration-PE1 MP BGP Configuration-PE2Scenario 1-MDS 9216i Connection to GSR Mpls Core VRF Configuration-PE2Configuring the MTU Configuring TCP Parameters on CPE Cisco MDSThroughput Scenario 2-Latency Across the GSR Mpls CoreScenario 3-Cisco MDS 9216i Connection to Cisco 7500 PE/GSR P Scenario 5-Impact of Core Performance Scenario 4-Impact of Failover in the Core17shows the MDS Fcip and compression latency Compression Ratio Comparisons Application RequirementsConclusion Remote Tape-Backup Applications
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