Investigating the SAN fabric

The zfcp_ping and zfcp_show commands can probe ports and retrieve information about ports in the attached storage servers and in interconnect elements such as switches, bridges, and hubs.

Because the commands are processed by the SAN management server, information can be obtained about ports and interconnect elements that are not connected to your FCP channel. Thus, zfcp_ping and zfcp_show can help to identify configuration problems in a SAN.

Before you begin

• The HBA API package, version 2.1 or later, must be installed and configured. See the readme file in the package for instructions. You can obtain the package at www.ibm.com/developerworks/linux/linux390/zfcp-hbaapi.html.
• At least one FCP device must be online.
• The management server of the SAN to be investigated must be accessible.