HP P6000 Continuous Access Implementation Guide (T3680-96431, August 2012)

3 Planning the remote replication fabric
This chapter describes the supported HP P6000 Continuous Access configurations.
Basic dual-fabric configuration
Figure 5 (page 23) shows the basic HP P6000 Continuous Access configuration with Fibre Channel
links. Hosts (5) have two HBAs, one connected to the blue fabric (6) and the other connected to a
redundant gold fabric (8). Arrays have two controllers, each connected to both fabrics for a total
of four connections. (For configurations with more than two ports per controller, see “Advanced
configurations” (page 29). Local and remote fabrics are connected by intersite links (7 and 9).
Figure 5 Basic configuration over fiber
6. Host I/O and replication fabric—blue1. Data center 1
7. Intersite link—blue2. Data center 2
8. Host I/O and replication fabric—gold3. LAN connection
9. Intersite link—gold4. Management server
10. Dual-controller arrays5. Hosts
This configuration provides no SPOF at the fabric level. If broken cables, switch updates, or an
error in switch zoning cause one fabric to fail, the other fabric can temporarily carry the entire
workload.
Basic configuration limits
For fabric rules and size limits, see Part II of the HP SAN Design Reference Guide. Limits apply to
the combined local-remote fabric in HP P6000 Continuous Access configurations.
The number of supported arrays and hosts in an HP P6000 Continuous Access configuration
depends on the array. This information is available in Part III of the HP SAN Design Reference
Guide.
Basic dual-fabric configuration 23