HP XP P9500 Storage - Manual (Page 47)

5 Configuration operations
This chapter provides instructions for configuring Continuous Access Synchronous.
Configuration workflow
Configuration consists of the following tasks:
•
Check prerequisites for each procedure.
•
See “Planning for pairs and pair volumes” (page 19) .
•
On the primary and secondary systems, install the data paths. See Data path requirements
and configurations (page 33) .
•
On primary and secondary system, configure the initiator and RCU target ports Fibre Channel
ports that will be used for Continuous Access Synchronous operations. See
“Ports” (page 36)
and “Defining port attributes” (page 47) for details.
•
On the primary system, create the Continuous Access Synchronous association with the
secondary system. See
“Configuring storage systems, defining logical paths” (page 48) .
Logical paths between the systems are added during this procedure.
You may also perform these additional procedures prior to the initial copy:
•
Add additional logical paths. See Configuring additional logical paths (page 52) .
•
Specify the number of volumes to copy at one time. See Setting number of VOLs. copied
concurrently, other options (page 53) .
Defining port attributes
Initiator and RCU target ports must be set up on the primary and secondary system for Continuous
Access Synchronous command and data transfer.
Prerequisite information
Before configuring ports, make sure they are ready to have a new attribute assigned, as follows:
•
If you are changing a target port to an initiator port, prepare the port for the change as follows:
Confirm that the port is offline. ◦
◦ Disconnect the port from the host.
◦ Remove all channel paths to the port.
•
If you are changing an initiator port to target or RCU target port, prepare the port for the
change as follows:
◦ Release all pairs using the ports.
◦ Delete the paths from the initiator port to the remote storage system.
◦ Delete the RCU.
The number of hosts connected to a target port must be limited to 128 or fewer to avoid
disconnection. See
Ports (page 36) for information about target, initiator, and RCU target ports.
Procedure 7 To define port attributes
1. In Remote Web Console, click Actions > Remote Copy > Continuous Access Synchronous >
RCU Operation.
2. Change to Modify mode by clicking the icon.
Configuration workflow 47