IBM System storage DS6000 Series, Attachment Manual

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Appendix. Locating the worldwide port name (WWPN)
This chapter tells you how to locate the WWPN value for a fibre-channel adapter on
the following host systems:
v Fujitsu PRIMEPOWER
v Hewlett-Packard AlphaServer
v
Hewlett-Packard 9000
v IBM eServer iSeries
v IBM eServer pSeries or RS/6000
v
Linux
v Novell NetWare
v
SGI (Silicon Graphics, Inc.)
v Sun
v Windows 2000
v
Windows 2003
Fibre-channel port name identification
This section describes how to identify a fibre-channel port name when you are
locating the WWPN.
The worldwide port name (WWPN) consists of exactly 16 hexadecimal characters
(0 - 9 and A - F). The storage unit uses it to uniquely identify the fibre-channel
adapter card that is installed in your host system. The storage unit automatically
finds the WWPN for your host fibre-channel adapter when you attach your host
system to the storage unit.
Note: If your host uses more than one fibre-channel adapter to connect to your
storage unit, you must add multiple entries to the host list for this host. You
must add 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.
You can manually locate a unique worldwide port name for the storage unit by
performing the steps in the following sections.
Locating the WWPN for a Fujitsu PRIMEPOWER host
This section lists the steps you must take to locate the WWPN for a PRIMEPOWER
host system.
1. After you install the adapter and you restart the host system, view the
/var/adm/messages file.
2. Search for the line that contains the lpfcx: Fibre Channel WWNN phrase, where
x is the adapter number 0, 1, and so on.
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