HP StorageWorks XP Remote Web Console Software - Manual (Page 112)

• PCB Mode displays the mode of the port. The mode is either Standard, High or MIX.
• Error Code displays an error code.
Configuring Port Attributes
The administrator at both the primary site and the secondary site must configure ports on the primary
storage system and the secondary storage system in the following ways:
• The administrator at the primary site must configure target ports, initiator ports, and RCU target
ports on the primary storage system.
• The administrator at the secondary site must configure initiator ports and RCU target ports on the
secondary storage system.
Ports on XP storage system have the target attribute by default. If you are configuring XP storage
systems, you must determine ports that should be used as initiator ports or RCU target ports, and then
you must change the attribute of the ports from target to initiator or RCU target. The port attributes
are explained below:
• Target: A target port is a Fibre Channel port used for connecting a storage system and a host.
When the host issues a write request, the request will be sent to a volume via a target port on the
storage system. Target ports must be configured on primary storage systems for URz operations.
• Initiator: An initiator port is a Fibre Channel port that sends commands to a remote storage system.
Initiator ports must be configured on both primary and remote storage systems for URz operations.
• RCU target: An initiator port is a Fibre Channel port that receives commands from a remote
storage system. RCU target ports must be configured on both primary and remote storage systems
for URz operations.
• External: An external port is a port that is required for Universal Volume Manager copy
operations. This port will not be used for URz copy operations.
If necessary, you can change this port to an target port, an initiator port, or an RCU target port.
• Initiator/external: This setting shows the combination of ports that have an initiator port and an
external port attributes. Only port that has an initiator port attribute within these ports can be used
for URz. This attribute cannot be changed by the URz software. For details on the port to which an
initiator/external mix mode is set, please refer to the XP External Storage Software user’s guide.
If initiator ports and RCU target ports are not configured on both primary and remote storage systems, the
following problem will occur and remote copy operations will not be performed:
• The administrator at the primary site will be unable to create any pair of a primary data volume
and a secondary data volume.
• The secondary storage system will be unable to read data from journal volumes in the primary
storage system.
WARNING!
Before changing a Fibre Channel port to an initiator port, disconnect the port from the host, release all
affected data volume pairs, delete all logical paths from the initiator port to the remote storage system,
and then remove all channel paths to the port.
WARNING!
Before changing a Fibre Channel port from initiator to target or RCU target, delete all affected data
volume pairs, release all logical paths from the initiator port to the remote storage system, and then
disconnect the local storage system and the remote storage system.
112 Configuring Disk Storage Systems and Logical Paths