Reading the monitor data
All records that are written to the z/VM® monitor stream begin with a product identifier.
The product ID is a 16-byte structure of the form pppppppffnvvrrmm,
where for records that are written by mon_fsstatd, these values are:
- ppppppp
- is a fixed ASCII string LNXAPPL.
- ff
- is the application number for mon_fsstatd = x'0001'.
- n
- is the record number = x'00'.
- vv
- is the version number = x'0000'.
- rr
- is reserved for future use and should be ignored.
- mm
- is reserved for mon_fsstatd and should be ignored.
Note: Though the mod_level field (mm) of the product
ID varies, there is no relationship between any particular mod_level
and file system. The mod_level field should be ignored by the reader
of this monitor data.
There are many tools available to read z/VM monitor data. One such tool is the Linux® monreader character device driver.