Specifications
28 Getting Started with the McDATA Intrepid FICON Director
Inter-Switch Links (ISLs) defined to HCD
If HCD is used to build the IOCDS, we suggest the ports used for ISLs be marked as
“occupied” in HCD. This prevents accidental attempts to define these ports to channels or
CUs.
If you are not familiar with HCD, refer to
Input/Output Configuration Program Users Guide,
SB10-7029 at:
http://www.ibm.com/servers/resourcelink
An example for this new function in HCD is shown in Figure 3-7.
Figure 3-7 Mark ISL ports as “occupied” in HCD
3.5 Binding and Insistent Domain ID
Insistent Domain IDs prohibit the use of dynamic Domain IDs to ensure predictable Domain
IDs are enforced within the fabric. For example, if a switch has this feature enabled, and a
new switch is connected to it (via an ISL) without the preferred Domain ID, then the new
switch is segmented into a separate fabric and user data will not flow.
Binding is a method used in the switch to prevent devices and/or other switches from
attaching to the switch, based on WWNs that are defined to a
membership list. The McDATA
FICON Director supports three levels of binding:
Port binding
This limits the N_Port that can be attached to an F_Port on the FICON Director by WWN.
Port binding requires a
Bound WWN, which is the device’s N_Port WWN (WWPN) that
connects to a particular F_Port on the FICON Director.
Port List Row 1 of 256
Command ===> ____________________________________________ Scroll ===> CSR
Select one or more ports, then press Enter.
Switch ID . . . . : 61 Address : 61
---------------Connection---------------
/ Port H Name + Unit ID Unit Type O
_ 00 N ________________________ _
_ 01 N ________________________ _
_ 02 N ________________________ _
_ 03 N ________________________ _
_ 04 Y ISL sw 61 to sw 62
Y
_ 05 Y ________________________ N
_ 06 Y ________________________ N
_ 07 Y ________________________ N
_ 08 Y ________________________ N
_ 09 Y ________________________ N
_ 0A Y ________________________ N
F1=Help F2=Split F3=Exit F4=Prompt F5=Reset F7=Backward
F8=Forward F9=Swap F10=Actions F12=Cancel F13=Instruct F22=Command
HCD switch Port List
Port = the 1-byte port address on the switch
Name = recommended to enter the ports in
the name field
Occupied = recommended to be specified a Y
for ISL ports