B Updating The Core Switch Pid Format; Hp Recommendations On Changing The Core Switch Pid Format - HP StorageWorks SAN Switch 2/32 Installation Manual

Updating the Core Switch PID Format
This Appendix provides detailed information for changing the Core Switch PID
format. The SAN Switch 2/32 units ship with the Core Switch PID format set to 1.
Before connecting to the SAN, you must verify that the Core Switch PID formats of all
switches already running in the SAN are also set to 1. If the Core Switch PID format is
not changed to 1 to match the SAN Switch 2/32's value, then the switches residing in
the SAN will fail to communicate with one another.
IMPORTANT: All switches running Fabric OS version 4.0.x or higher are shipped with the Core
Switch PID Format enabled, so it is not necessary to change the Core Switch PID format on
these switches. For example, the hp StorageWorks SAN Switch 2/32 and hp StorageWorks
Core Switch 2/64 always use Core Switch PID format 1. This parameter is always 1 and cannot
be changed.
HP Recommendations on Changing the Core
Switch PID Format
Proactively setting the core PID format on all new fabrics before they enter production
will prevent the need to update those fabrics in the future. This is strongly
recommended as a step in the deployment of all new fabrics. There is no difference in
the behavior of a fabric with either PID format; changing to the new format during
deployment will merely save administrative effort later on.
HP strongly recommends against using drivers that bind by PID. There are several
routine maintenance procedures which may result in a device receiving a new PID; the
core PID format update is just one example of such a procedure. Examples include but
are not limited to:
• Changing "Compatibility Mode" settings
• Changing switch domain IDs
• Merging fabrics
• Relocating devices to new ports or new switches (that is, for Add, Move, Change
type operations
SAN switch 2/32 version 4.0.x installation guide
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