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

NOTE: 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.
Figure 7 Single-fabric configuration
5. Hosts1. Data center 1
6. Host I/O and replication fabric2. Data center 2
7. Intersite link3. LAN connection
8. Dual-controller arrays4. Management server
Single-switch configuration
The single-switch HP P6000 Continuous Access configuration is designed for small, single-site,
entry-level tests or proof-of-concept demonstrations. This non-disaster-tolerant solution can also be
used for producing copies of data needed for data migration or data mining.
A 16-port switch can support a maximum of three hosts, two arrays, and one management server.
Large switches support more hosts and/or storage arrays if all HBA and array ports are connected
to the same switch. Fabric zoning is required to isolate servers as defined in HP SAN Design
Reference Guide. The fabric can be any supported fabric topology described in the HP SAN Design
Reference Guide.
An example of the single-switch configuration is shown in Figure 8 (page 29).
NOTE: This solution can also be used for producing copies needed for data migration or data
mining, but is not recommended for ongoing production due to multiple SPOFs.
28 Planning the remote replication fabric