3PAR Remote Copy 2.3.1 User's Guide (320-200175 Rev A, October 2009)

InForm OS Version 2.3.1 Remote Copy User’s Guide
5.1
Performance and Scripting Considerations
5
Performance and Scripting
Considerations
In this chapter
5.1 Performance Notes for RCIP Configuration 5.1
5.2 Performance Notes for RCFC Configuration 5.5
5.3 Scripting Notes 5.5
This chapter discusses performance considerations for using 3PAR Remote Copy. At the end of
the chapter, scripting notes are also provided.
5.1 Performance Notes for RCIP Configuration
The following sections contain performance notes for Remote Copy over IP (RCIP)
configuration.
5.1.1 Gigabit Ethernet Links
Remote Copy uses two GigE links to send data from the primary to the backup storage server.
Both links are used simultaneously to achieve the maximum throughput (MB/s). A single host
write I/O is sent on a single link, but different I/Os can be sent on different links. In a four-node,
six-node, or eight-node storage server configuration, only two nodes can have these GigE links.