H3C Technologies H3C S5830V2 Series Switches - Manual (Page 192)

181
Requirements analysis
To transmit the storage traffic over lossless Ethernet links in the SANs, perform the following tasks:
• Configure DCBX, PFC in auto mode, and ETS on the Ethernet interfaces connecting the switches to
the server.
• Enable PFC by force on the Ethernet interfaces connecting switches.
To implement link backup between the server and the disk device, use two separate SANs to provide
connections between the server and the disk device. The two SANs can use the same VSAN. The two
separate VSANs are as follows:
• One physical SAN is formed by the server, Switch A, Switch C, and the disk device.
• The other physical SAN is formed by the server, Switch B, Switch D, and the disk device.
To transmit the Ethernet traffic of the LAN in VLAN 1001, configure the Ethernet interfaces connecting
Switch A and Switch B to the LAN and the server to allow VLAN 1001.
To transmit the storage traffic of the SANs in VSAN 100, configure the interfaces connecting the four FCF
switches to the SANs to allow VSAN 100.
To transmit the storage traffic of VSAN 100 within VLAN 4001, map VLAN 4001 to VSAN 100.
To avoid physical loops in the LAN, enable STP on the Ethernet interfaces connecting Switch A and
Switch B to the LAN and the server. To prevent STP from blocking the interfaces used for forwarding
storage traffic on Switch A and Switch B, disable STP on the interfaces connecting the four FCF switches.
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 Switch A and Switch C and the link between Switch B and
Switch D and implement link backup and load sharing, configure Ethernet link aggregation groups 1
and 2, respectively.
To make the VFC interfaces correctly perform PFC when both FC interfaces and VFC interfaces are used,
configure FC interfaces to trust the 802.1p priorities carried in incoming packets.
Configuration restrictions and guidelines
When the SANs are complex, H3C recommends that you build the fabric dynamically and use FSPF for
FC routing.
Configuration procedures
Configuring Switch A
1. Enable the advanced mode:
# Configure the switch to operate in advanced mode. (Skip this step if the switch is operating in
advanced mode.)
system-view
[SwitchA] system-working-mode advance
Do you want to change the system working mode? [Y/N]:y
The system working mode is changed, please save the configuration and reboot the system
to make it effective.