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Core Switch 2/64 and SAN Director 2/128 installation guide
PID format summary
This section describes the process ID (PID) addressing format, which is one of several used in
Fibre Channel operations. The PID parameter is used by the routing and zoning services in
Fibre Channel fabrics to identify ports in the network.
The PID format is analogous to specifying the physical switch and port that 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.
A sample PID looks like this:
011F00
Many scenarios cause a device to receive a new PID. For example, a device can receive a new
PID when the device is unplugged from one port and plugged into a different port. (This might
occur when cabling around a bad port or when moving equipment around.) It may also occur
when you change the Domain ID of a switch, which may be necessary when merging fabrics,
or changing compatibility mode settings.
NOTE:
All switches running Fabric OS version 4.0.x or later are shipped with the PID Format
enabled, so it is not necessary to change the PID format on these switches. For example, the
SAN Switch 2/32 and Core Switch 2/64 always use Core Switch PID format 1. This
parameter is always 1 and cannot be changed.
Mixed fabric environment with different switch platforms
Fabric OS v2.6.2, v3.1.2, and v4.2.x introduced a new switch PID format: Extended Edge PID
(format 2). Extended Edge PID is useful if you introduce a Fabric OS 4.2.x switch into a fabric
that consists solely of Fabric OS v2.x and v3.x switches. Before adding a Fabric OS 4.2.x
switch to such a fabric, refer to the
HP StorageWorks Procedures user guid
e for the Fabric OS
version running on your switch to get information on the Extended Edge PID format.
NOTE:
Switches must operate with Fabric OS v2.6.2, v3.1.2, v4.2.x,
and later
to use the
Extended Edge PID format.
If Extended Edge PID is set (before a downgrade from the current Fabric OS release to an
earlier Fabric OS release that does not support the Extended PID format), PID needs to be set
back to a supported format, such as Core PID (format 1) or native PID (format 0).
Summary of Contents for StorageWorks 2/64 - Core Switch
Page 8: ...Contents 8 ...
Page 24: ...Overview 24 ...
Page 130: ...Setting up and installing modems 130 ...
Page 134: ...Running routine operations 134 ...
Page 166: ...Index 166 ...