Chapter 9: Performance Agent Commands › ADVISE COLLECT MODIFY › Fragmented File with an Extension Header › Positional Qualifiers

Positional Qualifiers

/WORKING_SET

Specifies the working set quota for a Performance Agent process. The minimum value is 1024. The default working set quota is 2048, and working set extent is 20K. You can override the defaults by specifying different values for quota.

Increase the working set quota when the Performance Agent page faults heavily.

Following the nodename parameter in the command, it specifies an integer value for that node only.

Following the collection definition name, it specifies the default value for the entire collection definition.

/FREE_SPACE

Specifies the minimum amount of disk space required to keep the Performance Agent running. If the number of blocks falls below this value the Performance Agent notifies you in the Performance Agent log file (PSDC$DATABASE:PSDC$LOG)and pauses until sufficient disk space is released. The default value is 2500 and the range is 0 -- 999,999.

Following a nodename parameter in the command, it specifies an integer value for that node only.

Following the collection definition name, it specifies the default value for the entire collection definition.

/PATH=device:[directory]

Following a nodename parameter in the command, it specifies a string value for the location for the data files for that node only.

Following the collection definition name, it specifies the default value for the location for the data files for the entire collection definition.

Specify a device and directory, or a logical name that indicates a disk directory, which contains the daily collection data files.

If you modify the path, you must move or rename all the existing data and history files to maintain access to all files.

Example

$ ADVISE COLLECT MODIFY PRIMETIME/SCHEDULE=(WEEKDAYS = 9-18)-
_$ /REORDER_NODES=(BERT,BIGBRD,ERNIE)-
_$ BERT/WORKING_SET = 1800, BIGBRD/FREE_SPACE = 1000

The previous command has the following scheduling effects:

• Weekday data collection occurs between 9:00 a.m. and 6:00 p.m.
• The order of listing of the nodes is changed.

		= Performance Agent Schedule File =
=========================================================================
Collection Name //   Attributes    	//  Weekly Schedule
=========================================================================
PRIMETIME                       	| Monday    9-18
	Delete After  99999 Days 	| Tuesday   9-18
	HotFile Que.    0.33     	| Wednesday 9-18
	Interval/sec   300.0     	| Thursday  9-18
	Start Date     2-MAR-2008	| Friday    9-18
	End Date       1-JAN-2010	| Saturday
	Classes: I/O   Metrs     	| Sunday
	Def Path: $DISK1:[PSDC_DATA]
	Def Minimum Free Space: 50000
	Def Working Set Size:   2048
-------------------------------------------------------------------------
-Node---DC Status-------DskFreeSpace--WSquota---Path---------------------
-------------------------------------------------------------------------
BERT    Down               10000       1800   BERT$DISK:[BERTS_PSDC_DATA]
BIGBRD  Down                1000       2048     $DISK1:[PSDC_DATA]
ERNIE   Down               25000       2048  ERNIE$DISK:[ERNIE_PSDC_DATA]