HP 3PAR Operating System Software - Manual (Page 24)

Fibre Channel Networks
RCFC can be set up only on storage systems that communicate over FC storage area networks (FC
SAN).
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Be sure you understand the FC SAN that is used to connect the storage systems.
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Remote-copy systems must be configured to be in the same FC SAN and zone.
Each storage system should have a pair of host bus adapters (HBAs) installed for load sharing and
fault tolerance.
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Prior to HP 3PAR OS 3.1.2, an RCFC transport layer required that an HBA on at least two
different nodes in the HP 3PAR StoreServ system be configured for and dedicated to remote
copy.
With HP 3PAR OS 3.1.2 and later, ports in an HBA can be configured individually on HP
3PAR StoreServ 7000 Storage system ports for both host and remote-copy support.
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As of HP 3PAR OS 3.1.2, the HBAs on each HP 3PAR StoreServ 7000 Storage system can
use shared RCFC and host cable connections to connect the systems through the FC SAN.
This configuration is supported only on HP 3PAR StoreServ 7000 Storage systems running HP
3PAR OS 3.1.2 or later.
HP 3PAR OS 3.1.2 MU2 enables this capability across HP 3PAR StoreServ 10000 systems.
The HBA can be shared by the host and RCFC only; it cannot be shared by RCFC and DISK,
by the host and DISK, or by the host, RCFC, and DISK.
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For HP 3PAR OS 3.1.2 and earlier, the entire front-end HBA on the HP 3PAR StoreServ Storage
had to be configured for RCFC.
As of HP 3PAR OS 3.1.3, both the HP 3PAR StoreServ 7000 Storage series and the HP 3PAR
StoreServ 10000 Storage systems allow individual ports to be set either on a front-end HBA
for RCFC or for host connectivity.
Fibre Channel over IP Networks
In a Fibre Channel over IP (RCFC over IP) network setup, on all systems, use FC connections that
pass through routers in order to cross an IP network.
Synchronous replication mode is not allowed when running RCFC over a SAN fabric extended
over IP.
For more information, see “Volume Group Modes” (page 120) .
24 Selecting Network Connections