Velocity Software remains the leader in supplying IBM z Systems, z/VM and Linux data to popular enterprise capacity planning facilies, while providing the real time ability to drill down into z/VM and Linux with simple clicks on a browser.
The Performance Data Base (PDB)
provided by Velocity Software is referred to as "history" data
in the documentation.
This is a collection of 6 files:
- ESASYS - System level data, channels, saved segments
- ESACPU - CPU related data, reported by CPU
- ESADEV - DASD and Device data, reported by device and control unit
- ESAUSR - User data, reported by user, userclass, accounting codes
- ESATCP - Network data, Linux data, distributed server data
- ZOSSYS - System data for z/OS
The format of the history data is in segments. Each segment has a 6 byte name followed by a 2 byte length code. If processing these files, it is mandatory that this format is used - as when segments are increased with new fields, your programs will still work if incrementing pointers based on the length code, and not a hard coded length that may change from release to release.
Velocity Software provides several interfaces to this data:
- zMAP - zMAP processes the history, producing reports.
- ESAEXTR - Part of the zMAP product, installations can define their own reports, selecting only data pertinent to the requirement.
- SAS code - Very much out of date, using Merrill Consultants' MXG is a much better option.
- PLI declares - This is an option if a function has not previously been provided. Please contact us if there is a need not being met.
Broadcom (Formerly Computer Associates): MICS Support / NeuMICS Support
MICS is directly supported by ZWRITE, allowing the records required
by MICS to be generated directly without the need to collect
raw monitor data.
From Computer Associates ENews:
Velocity Software's zMON and MICS
The VM monitor records extracted by Velocity Software's
ZWRITE have the same format and content as the
standard monitor records collected by IBM's VM supplied
MONWRITE utility. Additionally, ZWRITE can extract
monitor data at longer intervals than the set Monitor
interval, substantially reducing DASD space requirements.
This allows the Monitor interval to be set to 60 seconds
for effective real-time monitoring, without using large
amounts of DASD space for data logging. To learn more
about Velocity Software visit the Velocity Software webpage.
Instructions on moving this data to z/OS for MICS processing
can be found at
ESAMICS EXEC
Beyond normal CP monitor records, MICS will extract the C domain
records that include network, Linux system and Linux process data.
Field descriptions can be found in
ZVPS Data Descriptions.
Merrill Consultants: MXG
MXG supports using ZVPS history data as input. Data of any granularity is supported, either the one minute produced by ZWRITE or the long term data with 15 minute granularity produced by ZMAP. Look for the "XAMSYS", "XAMCPU", "XAMUSR", "XAMDEV" and "XAMTCP" declarations.
Note, that in single CPU environment, ZMAP should use the parameter "CPU_HISTORY='1110'B".
Instructions on moving this data to z/OS for MXG processing
can be found at
ESAMXG EXEC
Tivoli Performance Reporter
For those using the Tivoli Performance Reporter, the following was provided by an IBM location for release 2.4. Please send any updates to Velocity Software for inclusion and assistance to others if further enhancements are developed.
Tivoly / PRF Conversion SupportESASYS History Support
ESACPU History Support
ESAUSR History Support
ESADEV History Support
Service Level Reporter (SLR)
For those running SLR, since replaced by Tivoli Performance Reporter, the files are archived and available at:
SLR SupportVM PAF Support
For those using the old VM PAF from IBM, the following is the interface to that product.
ESAPAFVL EXECESAPAFKW EXEC
ESAPAFHF EXEC
ESAPAFEF EXEC
ESAPAFCV EXEC
ESAPAF KWIC
VMPAF ESAEXTR
Sample DATA
The following files are sample data, copyfile packed format. Save them to your disk, and FTP to z/VM using 'BINARY FIXED 1024'
ESASYS Sample History LinkESACPU Sample History Link
ESADEV Sample History Link
ESAUSR Sample History Link
ESATCP Sample History Link
The following files are sample data, binary. Save them to your disk, and use tools to view hex data.
ESASYS Sample History LinkESACPU Sample History Link
ESADEV Sample History Link
ESAUSR Sample History Link
ESATCP Sample History Link
