Pid format changes, Executing the basic procedure – HP StorageWorks 2.128 SAN Director Switch User Manual
Page 224
224 Configuring the PID format
PID format changes
There are several routine maintenance procedures which might result in a device receiving a new PID.
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, and change type operations)
•
Updating the Core PID format
•
Using hot spare switch ports to deal with failures
In every case where devices employ static PID binding, any such procedure becomes difficult or
impossible to execute without downtime.
In some cases, device drivers allow you to specify static PID binding. In these cases, such devices must be
identified and their PID binding should be changed to WWN binding.
The following sections contain a basic procedure that summarizes the steps necessary to perform PID
format changes without disrupting the fabric, and it provides special procedures for HP/UX and AIX.
Executing the basic procedure
This process should be executed as part of the overall online or offline update process. However, it can be
implemented in a stand-alone manner on a non-production fabric or a switch that has not yet joined a
fabric.
1.
Ensure that all switches in the fabric are running Fabric OS versions that support the addressing mode.
HP recommends that you use 2.6.2 for HP StorageWorks 1 GB switches; 3.1.2 for the SAN Switch
2/8-EL and SAN Switch 2/16; 4.2.0 for Core Switch 2/64 and SAN Director 2/128, as well as the
SAN Switch 2/8V, SAN Switch 2/16V, and SAN Switch 2/32; and 5.0.1 for 4/256 SAN Director.
NOTE:
All switches running any version of Fabric OS 4.0.0 and later are shipped with the Core Switch
PID Format enabled, so it is not necessary to perform the PID format change on these switches.
2.
Telnet into one of the switches in the fabric.
3.
Disable the switch by issuing the
switchDisable
command.
4.
Issue the
configure
command.
The configure prompts display sequentially.
5.
Enter
y
after the
Fabric parameters
prompt.
6.
Enter
1
at the
Core Switch PID Format
prompt.
7.
Complete the remaining prompts or press Ctrl-d to accept the remaining settings without completing all
the prompts.
8.
for the remaining switches in the fabric.
9.
Reenable the switch by issuing the
switchEnable
command.