Getting Started

Using the Interval Monitor › Getting Started

Getting Started

To begin with the Interval Monitor, follow the steps described below.

Step 1

To request the Interval Monitor, type the task code pmim following the ENTER NEXT TASK CODE prompt:

V71  ENTER NEXT TASK CODE:
 pmim

Step 2

Press [Enter]. The Interval Monitor displays the menu screen which lists all of the Interval Monitor options.

PM-Rnn.n SYSTEM71 CA, Inc. V71 08.348 08:01:10.98 CMD--> Window : 01 01 07:55 MENU Interval Monitor Detail Hist Description Detail Hist Description _ PF1 _ Summary _ PF2 Wait Type _ PF3 _ DB DBkey/Area _ PF4 DDL Log _ PF5 _ IO _ PF6 Scratch _ PF7 Area _ PF8 Queue _ PF9 _ Buffer _ PF10 Message _ PF11 _ Journal _ PF13 Storage _ PF14 _ Line IO _ PF15 _ Pgm Pool _ PF16 _ Storage Type _ PF17 Loads _ PF18 _ Interval Statistics _ PF19 _ Cdmslib _ PF20 _ Transaction Statistics _ PF21 PMIM Status/Options _ PF22 _ SQL Statistics _ PF23 _ Sysplex Menu Interval Monitor is Online and Collecting Data

Step 3

Select the screen(s) you want to view first. The menu is always available in window 01, should you need to select more screens later in the session. Select the screens by:

Using a PF key to select a Detail screen.
or
Typing any nonblank character next to the category that describes the screen you want to access. The first column to the left of each category requests the corresponding Detail screen. The second column requests the History screen.

The Current Interval

The current interval is initially set to the earliest interval for which the system has stored statistics.

To change the current interval, press:

[PF4] to establish the previous interval as current
[PF5] to establish the next interval as current

Monitor Screens

The following table summarizes the Interval Monitor screens. Each screen is discussed in more detail later in this chapter, in the order presented in this table.

Screen Name	PF Key	Display
Interval Monitor Menu		The main menu for the Interval Monitor
Summary Detail	PF1	One line per interval, showing system wait statistics, CPU time, and disk I/O. Also includes a breakdown of wait information by wait-type category for each interval.
Summary History		One line per interval, showing the total wait count and time, and the average wait time.
Wait Type by Interval	PF2	Information for the current interval. Includes one line for each detailed category of wait (Db-key/area, I/O, Journal, etc.): The total wait count and time for that category The percent-of-total for the category A graphic representation of these percentages
DBkey/Area Detail	PF3	Information for the current interval for db-key waits and area waits. For each nonsystem area, the information includes: A total wait count and time for all db-key waits Area wait information broken down by retrieval mode (shared, protected, and exclusive)
DBkey/Area History		One line per interval for the DBkey/Area wait category.
Log Detail	PF4	Information for the current interval, showing the following log statistics: I/O access statistics Db-key wait statistics Area statistics
IO Detail	PF5	Information for the current interval for all database I/O waits. For each nonsystem area, includes statistics for read and write waits, and for buffer use
IO History		One line per interval for the I/O wait category.
Scratch Detail	PF6	Information for the current interval for the scratch file, including: I/O access statistics Db-key wait statistics Area statistics
Area Detail	PF7	Information for the current interval, including: I/O access statistics Db-key wait statistics Area statistics for a specific database area
Queue Detail	PF8	Information for the current interval for each queue file, including: I/O access statistics Db-key wait statistics Area statistics
Buffer Detail	PF9	Information for the current interval, showing statistics related to database and journal buffer use
Buffer History		One line per interval for the Buffer wait category
Message Detail	PF10	Information for the current interval for each message file, including: I/O access statistics Db-key wait statistics Area statistics
Journal Detail	PF11	Information for the current interval, showing access statistics related to each journal file.
Journal History		One line per interval for the Journal wait category.
Storage Detail	PF13	Information for the current interval, showing statistics related to storage-pool use.
Line I/O Detail	PF14	Information for the current interval, showing teleprocessing statistics: Line information A PTERM count Read/write counts and errors Request parameter list (RPL) information for VTAM; RPB information for DCAM
Program Pool Detail	PF15	Information for the current interval, showing statistics related to program-pool use
Program Pool History		One line per interval for the Program Pool wait category.
Storage Type Detail	PF16	Information about the current interval, showing statistics related to XA and non-XA storage pools.
Storage Type History		One line per interval for the Storage Type wait category.
Program Load Detail	PF17	Information for the current interval, showing program loading information for programs, dialogs, maps, tables, and applications being loaded from the primary directory load area, CDMSLIB, and any test libraries
Specific Interval Information	PF18	DC statistics for a particular interval
Interval Information		Information by interval, showing detailed DC statistics
CDMSLIB Detail	PF19	Overview of load library activity by interval
CDMSLIB History		One line per interval for the CDMSLIB wait category.
Specific Transaction Information	PF20	DB statistics for a particular transaction
Transaction Information		Information by interval, showing detailed transaction statistics
Interval Monitor Options in Effect	PF21	Displays options specified by the system administrator
Specific SQL Information	PF22	Information for the current interval for all SQL statistics
SQL Information		One line per interval for SQL statistics.
Sysplex Menu	PF23	The menu for all activity related to Sysplex.

Moving from Screen to Screen

To move from one screen to the next, use one of the following methods:

Type any nonblank character at the appropriate underscore in the left-most column of the displayed screen, then press [Enter]. This process is explained for each screen later in this chapter. No underscore is displayed on screens that do not allow you to select the next screen with a nonblank character.
Use the control keys summarized in the following table.