Software Manual

3.13
Setting the Remote Copy Transport Layer
InForm OS Version 2.3.1 Remote Copy User’s Guide
◆ If the pings fail, issue another set of pings without specifying a size. If this second
attempt succeeds, the new setting is not supported and you should revert to 1500 MTU
before continuing on to Setting Up Remote Copy on page 3.16.
3.4.3 Setting Up Remote Copy Over Fibre Channel
For Remote Copy over Fibre Channel (RCFC) configurations, each link between a Remote Copy
pair is a physical link between a controller node on one storage server and a controller node
on the other storage server in the pair. These physical links use up to a 4 Gbps Fibre Channel
adaptor port from each of the two nodes in the storage servers that belong to the Remote
Copy pair. Typically, these ports are configured during the initial setup of the storage system.
If the setup did not occur, or the configuration has changed, you will need to reconfigure the
ports before you can begin setting up Remote Copy. Ports are configured using the
controlport rcfc command. See Appendix B, Remote Copy Commands for more
information on this command. See the InForm OS Command Line Interface Reference for
complete information on using this command.
RCFC requires a dedicated node pair per target. Each fibre channel interface on each node in
the primary InServ Storage Server must connect to a dedicated fibre channel interface on each
node in the backup InServ Storage Server. For example, in Figure 3-5:
■ Fibre channel interfaces on nodes 0 and 1 on the Primary InServ connect to fibre channel
interfaces on Backup InServ1 nodes 0 and 1, respectively.
■ Fibre channel interfaces on nodes 2 and 3 on the Primary InServ connect to fibre channel
interfaces on Backup InServ2 nodes 0 and 1, respectively.
CAUTION: Each pair of Remote Copy over Fiber Channel links must exist in an
exclusive zone. Fabric zones cannot be shared.