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This display shows that the current topology for both KGPSA host bus
adapters is LOOP, but will be FABRIC after the next initialization.
A system initialization configures the KGPSAs to run on a fabric.
6.5.2.3 Obtaining the Worldwide Names of KGPSA Adapters
A worldwide name is a unique number assigned to a subsystem by the
Institute of Electrical and Electronics Engineers (IEEE) and set by the
manufacturer prior to shipping. The worldwide name assigned to a
subsystem never changes. You should obtain and record the worldwide
names of Fibre Channel components in case you need to verify their target
ID mappings in the operating system.
Fibre Channel devices have both a node name and a port name worldwide
name, both of which are 64-bit numbers. Most commands you use with Fibre
Channel only show the port name.
There are multiple ways to obtain the KGPSA port name worldwide name:
• You can obtain the worldwide name from a label on the KGPSA module
before you install it.
• You can use the show dev command as follows:
P00>>> show dev
.
.
.
pga0.0.0.1.0 PGA0 WWN 1000-0000-c920-eda0
pgb0.0.0.2.0 PGB0 WWN 1000-0000-c920-da01
• You can use the wwidmgr -show adapter command as follows:
P00>>> wwidmgr -show adapter
item adapter WWN Cur. Topo Next Topo
[ 0] pga0.0.0.4.1 1000-0000-c920-eda0 FABRIC FABRIC
[ 1] pgb0.0.0.3.0 1000-0000-c920-da01 FABRIC FABRIC
[9999] All of the above.
• If the operating system is installed, the worldwide name of a KGPSA
adapter is also displayed in the boot messages generated when the emx
driver attaches to the adapter when the adapter’s host system boots. Or,
you can use the grep utility and obtain the worldwide name from the
/var/adm/messages file as follows:
# grep wwn /var/adm/messages
F/W Rev 2.20X2(1.12): wwn 1000-0000-c920-eda0
F/W Rev 2.20X2(1.12): wwn 1000-0000-c920-eda0
F/W Rev 2.20X2(1.12): wwn 1000-0000-c920-eda0
.
.
.
Record the worldwide name of each KGPSA adapter for later use.
Using Fibre Channel Storage 6–27