PVFS

The PVFS2 resources, such as server0_daemon, are used to describe each pvfs2-server process. This resource is provided by the PVFS2 script in the examples directory. The parameters to this resource are listed below:

• fsconfig: location of PVFS fs configuration file
• port: TCP/IP port that the server will listen on (must match server configuration file)
• ip: IP address that the server will listen on (must match both the file system configuration file and the IPAddr resource)
• pidfile: Location where a pid file can be written
• alias: alias to identify this PVFS daemon instance

Also notice that there is a monitor operation associated with the PVFS resource. This will cause the pvfs2-check-server utility to be triggered periodically to make sure that the pvfs2-server process is not only running, but is correctly responding to PVFS protocol requests. This allows problems such as hung pvfs2-server processes to be treated as failure conditions.

Please note that the PVFS2 script provided in the examples will attempt to create a storage space on startup for each server if it is not already present.