HP Virtual Connect 8Gb 24-port Fibre Channel Module for c-Class BladeSystem - Manual (Page 135)

Configuring the Virtual Connect domain using the CLI 135
CAUTION: If VCEM is managing the domain, be sure that the VCDG containing the domain is
running at a firmware mode of 3.30 or higher before applying VLAN capacity changes. Failure
to do so requires removal of the domain from the VCEM VCDG.
Legacy VLAN capacity
This mode has the same limits as previous releases of Virtual Connect. There is a limit of 320 VLANs per
Ethernet module and 128 VLANs per shared uplink set. Every VLAN on every uplink counts towards the 320
VLAN limit. If a shared uplink set is comprised of multiple uplinks, each VLAN on that shared uplink set is
counted multiple times. In addition, each server connection is limited to 28 VLANs. If less than 28 VLANs are
used on a server connection, the remaining capacity is not made available to other server connections on the
same physical server port. All VC Ethernet modules are supported.
Expanded VLAN capacity
This mode allows up to 1000 VLANs per domain. The number of VLANs per shared uplink set is restricted to
1000. In addition, up to 162 VLANs are allowed per physical server port, with no restriction on how those
VLANs are distributed among the server connections mapped to the same physical server port. There is also
a limit of 162 VLANs per server connection. However, care must be taken not to exceed the limit per physical
server port. For example, if you configure 150 VLAN mappings for a server connection (FlexNIC-a) of a
Flex-10 physical server port, then you can only map 12 VLANs to the remaining three server connections
(FlexNIC-b, FlexNIC-c, and FlexNIC-d) of the same physical server port. If you exceed the 162 VLAN limit,
the physical server port is disabled and the four server connections are marked as Failed.
CAUTION: After Expanded VLAN Capacity mode is configured, you must delete the VC domain
to return to Legacy VLAN Capacity mode.
IMPORTANT: Expanded VLAN Capacity mode is not supported on the following VC Ethernet
modules:
• HP 1/10Gb VC-Enet Module
• HP 1/10Gb-F VC-Enet Module
If these modules are inserted into an enclosure that is in Expanded VLAN Capacity mode, they are
marked as incompatible.
The default value is "Legacy". Set the VlanResourceMode to "Expanded" to use expanded VLAN
capacity:
>set enet-vlan PrefSpeedType=Custom PrefSpeed=500 MaxSpeedType=Custom
MaxSpeed=2500 VlanCapacity=Expanded
Fibre Channel setup
To configure external Fibre Channel connectivity for the HP BladeSystem c-Class enclosure:
1. Identify WWNs to be used on the server blades deployed within this Virtual Connect domain.
2. Create FC SAN fabrics (" Creating FC fabrics " on page 136 ).
Configuring WWN address ranges
Each server blade FC HBA mezzanine card ships with factory default port and node WWNs for each FC
HBA port. Each WWN is a 64-bit number that uniquely identifies the FC HBA port/node to other devices on
the network. While the hardware ships with default WWNs, Virtual Connect has the ability to assign WWNs
that override the factory default WWNs while the server remains in that Virtual Connect enclosure. When