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Installing the SAN Switch 2/8
51hp StorageWorks SAN Switch 2/8 Installation Guide
Important Information on Setting the CORE PID Format
After connecting the SAN Switch 2/8 via Ethernet, you must verify that all
switches you intend to connect to the SAN use the same Core Port Identifier (PID)
format. A PID is one of two addressing mechanisms used in Fibre Channel. The
PID is analogous to specifying the physical switch and port a device is attached to
in data networks. It is not analogous to an IP address. PIDs are assigned by a Fibre
Channel switch when a device logs into the fabric.
An example PID might look like this:
011F00
In new installations, where both edge and Core switches reside, you must verify
that the edge switch (for example, SAN Switch 2/8) PID format matches the Core
switch’s PID format, before connecting to the SAN.
For example, switches with firmware V3.0.2f or later have the PID set to 1. For a
SAN to work correctly, all HP StorageWorks SAN switches or HP Surestore FC
switches must have the same PID format setting, either 0 or 1. If a switch is
introduced to an existing SAN with a setting that differs from the setting on the
SAN, the switch will segment.
How to Check the Current Core PID Setting
To determine a switch’s current Core PID format, connect directly to a switch in
your SAN and complete the following steps via a telnet session, or the serial cable
supplied with the switch.
Note: All switches in the SAN require the same PID format setting.
1. Type configShow and press Enter.
2. About 15 lines down (press Enter to display more information on the page),
locate the following line:
fabric.ops.mode.pidFormat:
3. Type switchDisable and press Enter.
4. Type configure and press Enter.
5. Type y at the Fabric parameters prompt, (yes, y, no, n): [no] y.