How To Check The Current Core Pid Setting For Switches Running Firmware Lower Than V4.0.0; Updating The Core Switch Pid Format Online - HP StorageWorks SAN Switch 2/32 Installation Manual

Updating the Core Switch PID Format
• Using hot spare switch ports to deal with failures
• In every case where devices bind by PID, any such procedure will become
difficult or impossible to execute without downtime.
IMPORTANT: HP always recommends redundant fabrics and multi-pathing software for
uptime-sensitive environments. If a redundant SAN architecture is in place, the Core PID update
can take place without application downtime. To ensure maximum ease of administration, this
parameter can and should be proactively set on a fabric before it ever enters production,
whether or not an upgrade to larger switches is planned.
How to Check the Current Core PID Setting for Switches
Running Firmware Lower than V4.0.0
To view a switch's current Core Switch PID format, connect directly to a switch in
your SAN and complete the following steps via a telnet session or the serial cable
supplied.
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: 0
NOTE: The [0] value shown above indicates the Core Switch PID parameter set on this
particular switch.
If necessary, proceed to the next section for detailed procedures on changing the Core
Switch PID format to 1.

Updating the Core Switch PID Format Online

In order for the switches already running in the SAN to interoperate properly with the
SAN Switch 2/32, all of them must use a Core Switch PID format setting of 1. If the
Core Switch PID format assigned to switches already running in the SAN is 0, then
you must use these steps to update the value to 1.
IMPORTANT:
environments, with multi-pathing software. If dual-fabrics are not in place, there are a number
of routine maintenance scenarios which require scheduled downtime, the core PID migration
process being only one example. High-uptime environments should always use a redundant
fabric SAN architecture.
Complete these steps to update the Core Switch PID format while the SAN is running
online.
1. Backup all data. Verify backups.
B–2
The online update process is only intended for use in uptime-critical dual-fabric
SAN switch 2/32 version 4.0.x installation guide