OVNPM 1.5.2 - Performance Agent for NonStop Server Monitoring Guide

Appendix D 99
Parameter
Description
MeasExtMaxNb
The maximum of extents used by a measurement file. The measurement files are located
in LOG subvolume. The maximum eof of a measurement file is equal to MeasExtNb *
MeasExtSz * 2048 bytes.
The default value is 50.
Previous name of this parameter was MeasMaxExt. Even that name is still supported, it
should not be used any more.
MeasSwapFull
The MEASSWAPFULL parameter specifies when OVNPM should swap the measurement
file. If the MEASSWAPFULL value is 0, the measurement file is not swapped. In this
mode, OVNPM and Measure have the lowest CPU cost. The default value of
MEASSWAPFULL is 0.
TopFilesFlag
The value 1 is the default value. In this mode, OVNPM verifies the most frequently
accessed files.
TopFilesInterval
The interval used to measure physical I/O made on diskfiles. This interval is expressed
in minutes and can take the values 1, 2, 4, 8, 16 or 32 minutes.
The default value is 2 minute.
TopFilesAccuracy
The minimum of I/O processed during a request.
During a request, OVNPM selects all Measures with an I/O number greater than the
value of the parameter TopFIlesAccuracy, then it sorts all selected records and returns
the busiest values. The default value is 2. If the value is greater, OVNPM processes
fewer records. The maximum value is 999.
TopFilesMeasSz
OVNPM uses two measurement files to monitor the busiest disk files. When the size of a
measurement file is greater than the value of TopFilesMeasSz (expressed in Mbytes),
OVNPM starts to swap the second measurement file and stops the first one a few
minutes later. OVNPM allows the swapping of measurement files before they are full
and handles reasonable measurement sizes. The max eof of the measurement files is
defined by the parameters MeasExtMaxNb and MeasExtSz.
The default value is 6MB.
TopFilesMeasfhPri
TopFileMeashPri parameter defines priority of the Measfh process for top file.
The default value is 0, which means use CM priority. It can take a value in the range of
0-198.
LogicalIoFlag When the value is 1, OVNPM starts measurement of all fileopen. Only Navigator uses
the measurements in Zoom>>File page. Users can disable this flag if file activity and
Number of read write measurements are not required. Turning off logical IO flag reduce
collect cost.
AppMaxNb
AppMaxNb parameter sets the maximum applications that can be declared in
Application Availability. Valid AppMaxNb values are between 50 and 500. If omitted
or if an invalid value is specified, the default value of 160 is used.
ttpMaxNb Defines the number of TCP/IP Transport Providers to monitor. This parameter can be
modified using the SV_DCPRM_SET macro. The number of providers monitored in
TCP/IP and Sockets domains must be smaller than or equal to ttpMaxNb.
ttpSckMaxNb
Defines the maximum number of sockets per transport provider. This parameter can be
modified using the SV_DCPRM_SET macro. In this version, the maximum number of
sockets opened, i.e. ttpSckMaxNb times ttpMaxNb should be smaller than 360 000.
cmMemSz
This is the memory size for the Collect Manager (in MB), and can range from 20 – 120
MB. (default =20) This parameter may be modified when the SV_DCPRM_SET macro is
executed. This value will be increased when, for example a system has a large number
of disk volumes. SV_DCPRM_SET determines the size by the following: CmMemSz in
MB = (20 + (<volumeNb> * 4000)/1048576), where <volumeNb> = total number
volumes.
bcMemSz
This is the memory size for the Basic Collector (in MB), and can range from 16 – 120
MB. (default=20) This parameter may be modified when the SV_DCPRM_SET macro is
executed. This value will be increased when, for example a system has a large number
of tcpip providers. SV_DCPRM_SET determines the size by the following: BcMemSz in
MB = (80 + <ttpMaxNb> *(100+<ttpSckMaxNb>*312)) /1048576 + 20
Appendix D