User`s guide

70 Implementing an Open IBM SAN
If your host system uses more than one Fibre Channel adapter to connect to your
ESS, you must add multiple entries to the host system list for this host, one for
each Fibre Channel adapter. Each adapter will have its own unique WWPN.
The format and content of the Fibre Channel port identifier are determined by the
manufacturer of the link control facility for the applicable Fibre Channel port. The
identifier is an eight-byte field, which the Fibre Channel protocols use to uniquely
identify the Fibre Channel port. An example is the ESS Fibre Channel port.
You can manually assign a unique worldwide port name for the ESS by
performing the steps in the following sections.
1.12.2 Locating the WWPN for an AS/400 iSeries
To locate the WWPN for a AS/400 host system, perform the following steps:
1. On the screen for the AS/400 Main Menu panel, type strsst.
2. On the Start Service Tools (STRSST) Sign On panel, type your service tools
userid and service tools password.
3. On the System Service Tools (SST) panel, type 1 to select Start a service
tool.
4. On the Start a Service Tool panel, type 7 to select Hardware service manager.
5. On the Hardware Service Manager panel, type 1 to select Packaging
hardware resources (systems,frames,cards,...).
6. On the Packaging Hardware Resources panel, type 9 to select the System
Expansion unit.
7. On the Packaging Hardware Resources panel, type 8 to select Multiple
Function IOA.
8. On the Logical Resources Associated with a Packaging Resource panel, type
5 to select Multiple Function IOA.
9. On the Auxiliary Storage Hardware Resource Detail panel, locate the field
name for Port worldwide name. Note the number in the right hand column.
Note: If you have exchanged a 2766 Fibre Channel IOA in the iSeries system,
the IBM 2105 ESS disk unit subsystem must be updated to use the worldwide
port name of the new 2766 IOA. You can find the name in the port worldwide
name field on the iSeries system by displaying detail on the 2766 IOA Logical
Hardware Resource information in Hardware Service Manager in SST/DST.