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Data Center High Availability Clusters Design Guide
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Chapter 4 FCIP over IP/MPLS Core
Service Offerings over FCIP
Service Offerings over FCIP
Figure 4-5 shows a typical service architecture for deploying FCIP over IP/MPLS.
Figure 4-5 FCIP over IP/MPLS Architecture
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 4-6 shows a typical hub-and-spoke setup where customer SAN traffic can be
transported over the SP IP/MPLS network.
SAN
Local
Data Center
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IP/MPLS
Gateway
FCIP
SAN
Remote
Data Center
Gateway
FCIP