Total number of writes per second to logrec
Projected write requests per second against the log stream. This value is the total IXGWRITE
requests per second issued by all system logger applications or systems connected to a log stream.
For an OPERLOG log stream, you can calculate projected writes per second using the current SYSLOGs. For each system in the sysplex, do the following calculation:
- Choose a spot in SYSLOG and note the timestamp at that spot. You might want to choose a peak or high usage time of day.
- Page down 2000 lines by issuing, for example, DOWN 2000 to SDSF or TSO/E browse.
- Note the time stamp in this spot.
- Calculate the number of seconds between the two time stamps. This is the number of seconds it took to write 2000 lines of SYSLOG. (This calculation is based on most messages being one line).
- Divide 2000 by the number of seconds it took to write 2000 lines to get the lines per second.
- Add the results for each system's SYSLOG to get the total writes per second for the OPERLOG log stream.
Valid values: 1 - 3000