Configuring Persistent Fc Ids Manually; Configuring Unique Area Fc Ids For Some Hbas; Enabling Persistent Fc Ids - Cisco DS-C9216I-K9 Configuration Manual

Enabling Persistent FC IDs

Configuring Persistent FC IDs Manually

Once the persistent FC ID feature is enabled, you can enter the persistent FC ID submode and add static
or dynamic entries in the FC ID database. By default, all added entries are static. Persistent FC IDs are
configured on a per-VSAN basis. Follow these requirements to manually configure a persistent FC ID:
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You cannot configure persistent FC IDs in FICON-enabled VSANs.
Note

Configuring Unique Area FC IDs for Some HBAs

This section does not apply if either the HBA port or the storage port is connected to different switches.
Note
Some HBA ports require a different area ID than storage ports when they are both connected to the same
switch. For example, if the storage port FC ID is 0x6f7704, the area for this port is 77. In this case, the
HBA port area can be anything other than 77. The HBA port FC ID must be manually configured to be
different from the storage port FC ID.
Switches in the Cisco MDS 9000 Family facilitate this requirement with the FC ID persistence feature.
You can use this feature to preassign an FC ID with a different area to either the storage port or the HBA
port. The procedure in this example uses a switch domain of 111(6f hex). The HBA port connects to
interface fc1/9 and the storage port connects to interface FCC 1/10 in the same switch.
Enabling Persistent FC IDs
Persistent FC IDs are disabled by default. You can enable this option globally or for each VSAN. If you
choose to enable it globally, you can do so at any time using the initial setup routine or the setup
command. When you enable this option globally, the switch remains in this state until you change the
global configuration.
If you enable this option during the initial switch setup, this option will be automatically enabled in all
Note
configured VSANs. If you enable this option at a later stage, this option will be automatically enabled
in all VSANs configured after that stage. VSANs configured before that stage will remain unchanged.
When a N or NL port logs into a Cisco MDS 9000 Family switch, it is assigned a FC ID. By default, the
persistent FC ID feature is disabled. If this feature is disabled, the following consequences apply:
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
26-10
Ensure that the persistent FC ID feature is enabled in the required VSAN.
Ensure that the required VSAN is an active VSAN. Persistent FC IDs can only be configured on
active VSANs.
Verify that the domain part of the FC ID is the same as the runtime domain ID in the required VSAN.
If the software detects a domain mismatch, the command is rejected.
Verify that the port field of the FC ID is 0 (zero) when configuring an area.
Do not replace an FC ID that is already configured in another WWN. If you want to use a
previously-configured WWN, first delete the configured WWN before proceeding with this
procedure.
Chapter 26 Configuring Domain Parameters
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