Operating System Software User Manual

Storage and HP 3PAR 10000 StoreServ Storage systems, individual ports can be configured for
RCFC.
Remote-copy links in asynchronous periodic mode do not have to be dedicated to remote copy,
and can be shared with other traffic, but this is not recommended. The remote-copy links in
synchronous mode require guaranteed bandwidth over dedicated remote-copy links.
RCFC over IP network connections are allowed only for remote copy in asynchronous periodic
mode.
RTT
Maximum round-trip time (RTT) allowed is shown in Table 1 (page 27):
Table 1 Remote Copy RTT
RTTTransport LayerVolume Group Mode
2.6 msRCFCSynchronous
2.6 msRCIP
n/aFCIP
(Not supported)
2.6 msRCFCAsynchronous periodic
150 msRCIP
120 msFCIP
Setting Up Remote Copy over IP
RCIP Initial Remote-Copy Pair
Figure 9 (page 27) illustrates the initial remote-copy pair in an RCIP configuration.
Figure 9 Network and RCIP Setup—Example Initial Pair
RCIP Initial Remote-Copy Pair Worksheet
Figure Figure 10 (page 28) is a worksheet for setting up an initial remote-copy pair over RCIP.
Setting Up Remote Copy over IP 27