4 – Configuration
SN0051424-00 B 3
4.2Configuring Local and Remote iSR6200 Routers for iSCSI Presentation
To configure local and remote iSR6200 routers for iSCSI presentation, follow these steps:
1. Identify the destination array ports to use for remote migration.
2. Zone the destination array controller ports with remote iSR6200 Fibre Channel ports.
3. Register the remote iSR6200 Fibre Channel ports and provide access to the LUNs on the destination
array.
4. Rescan the targets on the remote iSR6200 to discover the LUNs that were mapped to iSR6200 Fibre
Channel ports on the array.
5. Ensure that the destination LUNs are mapped to the remote iSR6200 by issuing the show luns
command on the CLI, or by selecting the FC Discovered Targets or the iSCSI Discovered Targets node
in the GUI’s router tree to see the LUNs.
6. Configure the IP addresses, gateway, and subnet mask in the iSCSI interface(s) on the remote
iSR6200.
7. Configure the iSCSI interface(s) on the local iSR6200 as follows:
a. Configure the IP addresses, gateway, and subnet mask.
b. Set the iSCSI maximum first burst to 64K.
c. Configure the TCP window size for the round-trip time (RTT) and bandwidth to the remote iSR6200.
8. On the local iSR6200, issue the iscsi discover command in the CLI, or use the Discover iSCSI
Target Wizard in the GUI to discover the remote iSR6200 iSCSI port IP address.
9. Verify that the remote iSR6200 shows the local iSR6200 router’s iSCSI qualified name (IQN) by issuing
the show initiators iSCSI command in the CLI, or by viewing the Discovered iSCSI Initiator node
in the GUI.
10. Provide the destination LUN access to the local iSR6200 by following one of these options:
Disable LUN masking on the remote router using the set system command in the CLI (a reboot
of the remote iSR6200 blades is required).
Mask LUNs using the Target Presentation/LUN Mapping Wizard (on both blades) of the remote
iSR6200, presenting the destination LUNs to the local iSR6200 iSCSI initiator IQN.
11.On the local iSR6200, log in to the remote iSR6200 iSCSI targets by issuing the iscsi login
command in the CLI, or by selecting the targets in the iSCSI Discovered Targets node on the router tree
in the GUI.
12.Repeat the login using multiple local and remote iSR6200 iSCSI ports to enable multipathing between
the local and remote iSR6200s.

NOTE:

Some arrays do not allow an iSR6200 Fibre Channel port to port log in (PLOGI) to its Fibre Channel
ports if there are no LUNs mapped to the Fibre Channel port that is logging in. You must generate a
registered state change notification (RSCN) to iSR6200 Fibre Channel ports by disabling and then
re-enabling all connected Fibre Channel ports on iSR6200 blades.