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

Figure 26 Six-fabric configuration (four–port controller pair to eight–port controller pair)
7. Host I/O fabric1. Data center 1
8. Replication fabric2. Data center 2
9. Intersite link3. Array controller pair
10. Host I/O fabric4. Management server
11. Replication fabric5. Hosts
12. Intersite link6. Fibre Channel switches
The new configuration connections are shown in Figure 27 (page 66), Figure 28 (page 68), and
Figure 29 (page 69). For additional details describing these zoned solutions, see “Zoning best
practices for traffic and fault isolation” (page 70).
NOTE: These configurations can cause the fabrics to merge in to a single fabric unless the
necessary steps are taken.
When creating an intersite FCIP link using B-series or C-series routers, the respective LSAN and
IVR functionality can provide SAN traffic routing over the FCIP connection while preventing the
merging of the two sites' fabrics in to a single fabric. LSANs and IVR enable logical fabric separation
of the two sites, ensuring that a change on one site's fabric does not affect the other site.
The HP FCIP Distance Gateways (MPX110) will allow the fabrics on both sites to merge into a
single large fabric. SAN traffic isolation can still be accomplished with the FCIP Distance Gateways
using SAN zoning, but this will not provide fabric separation. When using the FCIP Distance
Gateways, fabric configuration changes should be made carefully, and it may be desirable to
disable the ISL until all changes are complete and the fabric is stable.
The HP P6000 Command View management server in each of the five-fabric and six-fabric
configurations now connects directly to the Fibre Channel switches used for host I/O. The host I/O
fabric switch is also connected to the appropriate replication fabric switches, providing a
communication path from the management server to the remote array. The management server
64 Implementing remote replication