Reading z/VM monitor records

z/VM guest

Monitoring software on Linux can access z/VM guest data through the z/VM *MONITOR record reader device driver.

z/VM uses the z/VM monitor system service (*MONITOR) to collect monitor records from agents on its guests. z/VM writes the records to a discontiguous saved segment (DCSS). The z/VM *MONITOR record reader device driver uses IUCV to connect to *MONITOR and accesses the DCSS as a character device.

The z/VM *MONITOR record reader device driver supports the following devices and functions:

  • Read access to the z/VM *MONITOR DCSS.
  • Reading *MONITOR records.
  • Access to *MONITOR records as described on
    www.ibm.com/vm/pubs/ctlblk.html
  • Access to the kernel APPLDATA records from the Linux monitor stream.