Querying the z/VM recording status

Ubuntu 22.04 LTS z/VM guest

Use the recording_status attribute of the z/VM recording device driver representation in sysfs to query the z/VM recording status.

Example

This example runs the z/VM CP command QUERY RECORDING and returns the complete output of that command. This list does not necessarily have an entry for all three services and there might also be entries for other guests.

# cat /sys/bus/iucv/drivers/vmlogrdr/recording_status
This command results in output similar to the following example: 
RECORDING     COUNT     LMT     USERID     COMMUNICATION 
EREP ON       00000000  002     EREP       ACTIVE 
ACCOUNT ON    00001774  020     DISKACNT   INACTIVE 
SYMPTOM ON    00000000  002     OPERSYMP   ACTIVE 
ACCOUNT OFF   00000000  020     LINUX31    INACTIVE
where the lines represent:
  • The service
  • The recording status
  • The number of queued records
  • The number of records that result in a message to the operator
  • The guest that is or was connected to that service and the status of that connection

A detailed description of the QUERY RECORDING command can be found in the z/VM: CP Commands and Utilities Reference, SC24-6268.