H3C Technologies H3C S5830V2 Series Switches - Manual (Page 175)

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• One physical SAN is formed by the server, the IRF fabric, Switch C, and the disk device.
• The other physical SAN is formed by the server, the IRF fabric, Switch D, and the disk device.
To transmit the Ethernet traffic of the LAN in VLAN 1001, configure the Ethernet interfaces connecting the
IRF fabric to the LAN and the server to allow VLAN 1001.
To transmit the storage traffic of the SANs in VSAN 100 and VSAN 200:
• Configure the interfaces connecting Switch A and Switch C to the SANs to allow VSAN 100.
• Configure the interfaces connecting Switch B and Switch D to the SANs to allow VSAN 200.
To transmit the storage traffic of VSAN 100 within VLAN 4001, map VLAN 4001 to VSAN 100.
To transmit the storage traffic of VSAN 200 within VLAN 4002, map VLAN 4002 to VSAN 200.
To avoid physical loops in the LAN, enable STP on the Ethernet interfaces connecting the IRF fabric to the
LAN and the server. To prevent STP from blocking the interfaces used for forwarding storage traffic on the
IRF fabric, disable STP on the interfaces connecting the IRF fabric to Switch C and Switch D.
For the server to access the resources in the disk device, configure the members in the default zone to
access each other.
To increase the bandwidth for the link between the IRF fabric and Switch C and the link between the IRF
fabric and Switch D and implement link backup and load sharing, configure Ethernet link aggregation
groups 1 and 2, respectively.
Configuration restrictions and guidelines
When you configure FCoE in IRF mode, follow these restrictions and guidelines:
• When the SANs are complex, H3C recommends that you build the fabric dynamically and use
FSPF for FC routing.
• Because the server is connected to the same IRF fabric rather than two separate devices in the two
SANs, the two SANs must use different VSANs (for example, VSAN 100 and VSAN 200), and the
IRF fabric must connect to the two VSANs.
• An IRF port is a logical interface connecting IRF member devices. To use an IRF port, you must bind
at least one physical port to it. A link formed by IRF ports is called an IRF link.
Configuration prerequisites
Before you configure FC and FCoE in IRF mode, complete the following tasks:
• Configure Switch A and Switch B to form an IRF fabric. You can configure the IRF fabric on any IRF
member device.
• Aggregate the four physical links connecting Switch A to Switch B into an IRF link, with ports
IRF-port 1/1 and IRF-port 2/2 at the two ends, respectively.
For information about configuring IRF, see the IRF Configuration Guide.
Configuration procedures
This section describes only the FC and FCoE configurations.