Deployment Guide

Performing Advanced Configuration Tasks
● Port identifiers (PIDs) and PID binding overview............................................................ 65
● Ports................................................................................................................................69
● Blade terminology and compatibility................................................................................78
● Enabling and disabling blades........................................................................................ 83
● Blade swapping...............................................................................................................84
● Disabling switches...........................................................................................................87
● Power management........................................................................................................ 87
● Equipment status............................................................................................................ 88
● Audit log configuration.....................................................................................................91
● Duplicate PWWN handling during device login...............................................................93
● Forward error correction..................................................................................................95
Port identifiers (PIDs) and PID binding overview
Port identifiers (PIDs, also called Fabric Addresses) are used by the routing and zoning services in
Fibre Channel fabrics to identify ports in the network.
All devices in a fabric must use the same PID format. When you add new equipment to the SAN, you
may need to change the PID format on legacy equipment.
Many scenarios cause a device to receive a new PID; for example, unplugging the device from one port
and plugging it into a different port as part of fabric maintenance, or changing the domain ID of a switch,
which might be necessary when merging fabrics, or changing compatibility mode settings.
Some device drivers use the PID to map logical disk drives to physical Fibre Channel counterparts.
Most drivers can either change PID mappings dynamically, also called dynamic PID binding, or use the
WWN of the Fibre Channel disk for mapping, also called WWN binding.
Some older device drivers behave as if a PID uniquely identifies a device; they use static PID binding .
These device drivers should be updated, if possible, to use WWN binding or dynamic PID binding
instead, because static PID binding creates problems in many routine maintenance scenarios.
Fortunately, very few device drivers still behave this way. Many current device drivers enable you to
select static PID binding as well as WWN binding. You should only select static PID binding if there is a
compelling reason, and only after you have evaluated the effect of doing so.
Core PID addressing mode
Core PID is the default PID format for Brocade platforms. It uses the entire 24-bit address space of the
domain, area ID, and AL_PA to determine an object’s address within the fabric.
The Core PID is a 24-bit address built from the following three 8-bit fields:
• Domain ID, written in hex and the numeric range is from 01 through ee (1 through 239)
• Area ID, written in hex and the numeric range is from 01 through ff (1 through 255)
• AL_PA
For example, if a device is assigned an address of 0f1e00, the following would apply:
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