HP StorageWorks MSA 2.8 SAN Switch - Manual (Page 143)

Updating Switches to the Core PID Addressing
143 Fabric OS Procedures Version 3.1.x/4.1.x User Guide
About Core PID Addressing
Updating the Core Switch PID Format is required when upgrading an existing
SAN to support larger port-count switches. When a switch with more than 16
ports, such as the SAN Switch 2/32 or the Core Switch 2/64 is introduced into an
existing fabric, this parameter needs to be set on all 2.x and 3.x switches in the
fabric.
In addition to the Core PID format update process, there are a number of common
scenarios in which a device may be assigned a new PID. Therefore the procedures
included in this chapter are applicable to other areas of SAN administration, and
should be generally useful to any SAN administrator. While this chapter is not
comprehensive, it should provide a SAN administrator with the information
required to plan and execute a successful core PID format update, and provide
useful information for other SAN management tasks.
Redundant fabrics and multi-pathing software are recommended 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 should be set on all switches in a
fabric before the fabric enters production, regardless of whether an upgrade to
larger switches is planned.
You have a fabric that
consists of 2.x switches
only.
Add an additional 2.x switch to
the fabric.
No action is required. The switch is in
Native Addressing Mode, but Core
PID is not necessary since the fabric
does not contain a 4.x switch.
Add a 3.x firmware switch to
the fabric.
No action is required. The switch is in
Native Addressing Mode, but Core
PID is not necessary since the fabric
does not contain a 4.x switch.
Add a 4.x switch (Core Switch
2/64 or SAN Switch 2/32) to
the fabric.
■
The firmware must be upgraded
to 2.6.0c + (2.6.1 is
recommended).
■
The Core PID must be enabled
before it can join the fabric.
Table 8: Sample Fabric Scenarios (Continued)
Scenario Desired Change Required Action