HP StorageWorks MSA 2/8 HP StorageWorks Fabric OS Procedures V3.1.x/4.1.x User - Page 143
About Core PID Addressing, useful information for other SAN management tasks.
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Updating Switches to the Core PID Addressing Table 8: Sample Fabric Scenarios (Continued) Scenario You have a fabric that consists of 2.x switches only. Desired Change Add an additional 2.x switch to the fabric. Add a 3.x firmware switch to the fabric. Add a 4.x switch (Core Switch 2/64 or SAN Switch 2/32) to the fabric. Required Action 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. 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. ■ 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. 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. Fabric OS Procedures Version 3.1.x/4.1.x User Guide 143