HP OpenVMS Systems Documentation

The event pane occupies the bottom part of the System Overview window (Figure 2-25). In this pane, the Data Analyzer displays events that occur on all the nodes being monitored on your system, including nodes that might not be displayed currently in the Group/Node pane.

Events signal potential problems that might require further investigation. An event must reach a certain level of severity to be displayed. You can customize the severity levels at which events are displayed (see Chapter 7). For more information about displaying events, see Chapter 5.

The events that are signalled depend on the types of data collection that are performed (see Section 2.8.2.5).

In the System Overview window, you can change the size of the panes as well as the width of specific fields. You can also change the borders between the fields by placing the mouse on the border, displaying a double-headed arrow, and dragging the border to the right or left.

Scroll bars indicate whether you are displaying all or part of a pane. For example, clicking a right arrow on a scroll bar allows you to view the rightmost portion of a screen.

2.8.4 Other System Overview Window Components

In addition to panes, the System Overview window (Figure 2-25) also includes features such as a title bar, menu bar, and status bar:

Title bar

The title bar runs across the top of the window and contains the product name and version.

Menu bar

The menu bar, immediately below the title bar, contains the following menu options:

• File
  The File menu contains the Exit option, which allows you to stop the Data Analyzer and close the window.
• Customize
  The Customize menu contains options that allow you to customize various aspects of the Data Analyzer. These options are explained in Chapter 7.
• Help
  The Help menu offers different types of online help for the Data Analyzer. These options are explained in Section 2.9.

Status bar

The status bar, which runs across the bottom of the window, displays the following:

• The name of the selected group and the number of nodes in that group.
• The Java Virtual Machine memory statistics - the current amount of memory used and the maximum amount of memory. If the current amount of memory stays close or is equal to the maximum amount of memory, various odd behaviors may occur including hanging data collections for nodes, unable to show dialog boxes, etc. due to the lack of memory.
• The current time in a colored box. The color of the box goes from green (the Data Analyzer is keeping up with the amount incoming data) to red (the Data Analyzer is having trouble processing the amount of incoming data), and various shades in between.

Displaying More Information at Any Time

In the initial System Overview window (Figure 2-25), which is displayed by default, you can perform the following actions at any time during the display:

• Click on a field to select it.
• Double-click most fields to display a page containing information specific to that field.
• Right-click a field to display a shortcut menu with additional choices on it.

To obtain online help, click on the Help menu on the System Overview window menu bar. Then choose one of the following options, which are displayed at the top of the page.

The Data Analyzer does not provide a printscreen capability. However, you can capture Data Analyzer displays and print them by following these steps:

1. Click on the selected Data Analyzer display to make it your active window.
2. Press the key combination Alt + PrintScreen .
   This action copies the image of the display into your copy buffer. (To capture the entire screen, press Ctrl + PrintScreen .)
3. Run the Windows Paint program:

   Start --> Programs --> Accessories --> Paint

4. Do one of the following:
   • Press the key combination Ctrl + V .
   • From Paint's Edit menu, select Paste .
5. Then do one of the following:
   • Select an option from Paint's File menu. For example:
     • Save or Save As...: to name the file containing the display image and place it in a directory that you specify.
     • Print: to print the display image on a printer that you select.
   • Use one of Paint's editing options to edit the display image before saving or printing it.

Node summary data is the only data that is collected by default. The Data Analyzer looks for events only in data that is being collected.

You can collect additional data in either of the following ways:

• Open any display page that contains node-specific data (for example, CPU, memory, I/O) automatically starts foreground data collection and event analysis except for Lock Contention and Cluster Summary information. (You must select these tabs individually to start foreground data collection.) Collection and evaluation continue as long as a page with node-specific data is displayed.
• Click a check mark on the Data Collection Customization page (which you can select on the Customize OpenVMS... menu) enables background collection of that type of data. Data is collected and events are analyzed continuously until you remove the check mark.

For additional information about how to change these settings, see Chapter 7.

This chapter describes the node data that the Data Analyzer displays by default and more detailed data that you can choose to display. Differences are noted whenever information displayed for OpenVMS nodes differs from that displayed for Windows nodes.

Although Cluster Summary is one of the tabs displayed on the OpenVMS Node Summary page (Figure 3-4), see Chapter 4 for a detailed discussion of OpenVMS Cluster data.

The Data Analyzer automatically displays data for each node within the groups displayed in the Group/Node pane of the Application window (Figure 3-1).

Figure 3-1 OpenVMS Group/Node Pane

Recall that the colors of the icons represent the following states:

If you hold the cursor over a node name, the Data Analyzer displays a tooltip explaining the specific reason for the color that precedes the node name. By holding the cursor over many column headers and some data items on Data Analyzer screens, you can display tooltips. Figure 3-2 is an example of a tooltip that explains the BIO column header in the Group/Node pane.

Figure 3-2 Sample Tooltip

The colors and their meanings are in Table 3-1.

The following sections describe the data displayed for OpenVMS and Windows Group/Node panes.

3.1.1 OpenVMS Node Data

Node data with a graph displayed in red indicates that the amount is above the threshold set for the field. For each OpenVMS node and group it recognizes, the Data Analyzer displays the data described in Table 3-2. This table also lists the abbreviation of the event that is related to each type of data, where applicable. See Section 7.8 for information about setting event thresholds. Appendix B describes OpenVMS and Windows events.

Note that you can sort the order in which data is displayed in the Node Pane by clicking a column header. To reverse the sort order of a column of data, click the column header again.

Figure 3-3 is an example of a Windows Node pane. From the group you select, the Data Analyzer displays all the nodes with which it can communicate.

Figure 3-3 Windows Node Pane

For each Windows node in the group, the Data Analyzer displays the data described in Table 3-3.

The following sections describe node data pages, which you can display in any of the following ways:

• Double-click a data item in the Group/Node or Node pane to display an associated page.
• Double-click a node name on the Group/Node or Node pane to display a Node Summary page (Figure 3-4). You can then click other tabs on the Node Summary page to display the same detailed data that you display by double-clicking a data item in the Group/Node or Node pane.
• Double-click an event in the Event pane.

The menu bar on each node data page contains the options described in Table 3-4.

The following sections describe individual node data pages.

3.2.1 Node Summary

When you double-click a node name, operating system (OS) version, or hardware model in an OpenVMS Group/Node pane (Figure 2-25) or a Windows Node pane (Figure 3-3), the Data Analyzer displays the Node Summary page (Figure 3-4).

Figure 3-4 Node Summary

On this page, the following information is displayed for the selected node:

By clicking the CPU tab, you can display CPU panes that contain more detailed statistics about CPU mode usage and process summaries than the Node Summary does. You can use the CPU panes to diagnose issues that CPU-intensive users or CPU bottlenecks might cause. For OpenVMS nodes, you can also display information about specific CPU processes.

When you double-click a value under the CPU or CPU Qs heading on either an OpenVMS Group/Node or a Windows Node pane, or when you click the CPU tab, the Data Analyzer displays the CPU Mode Summary in the top pane (Figure 3-6) and, by default, CPU Mode Details (Figure 3-7) in the lower pane. You can use the View menu to select the CPU Process Summary in the lower pane ( Section 3.2.2.4).

CPU mode summaries and process summary panes are described in the following sections. Note that there are differences between the pages displayed for OpenVMS and Windows nodes.

3.2.2.1 Windows CPU Modes

Figure 3-5 provides an example of a Windows CPU Modes page. The sample page contains values for the three CPU modes---user, privileged, and null.

Figure 3-5 Windows CPU Modes

The top pane of the Windows CPU Modes page is a summary of Windows CPU usage, listed by type of mode.

On the left, the following CPU modes are listed:

• User
• Privileged
• Null

On the graph, values that exceed thresholds are displayed in red. To the right of the graph are current and extreme amounts for each mode.

Current and extreme amounts are also displayed for the following values:

• Deferred procedure calls (DPCs) queued per second
• Interrupts that occurred per second

The lower pane of the Windows CPU Modes contains modes details. The following data is displayed:

Figure 3-6 shows sample OpenVMS CPU Mode Summary and CPU Process States, which are the left and right top panes of the CPU Modes page.

Figure 3-6 OpenVMS CPU Mode Summary and Process States

CPU Mode Summary

In the CPU Mode Summary section of the pane, percentages are averaged across all the CPUs and are displayed as a single value on symmetric multiprocessing (SMP) nodes.

To the left of the graph is a list of CPU modes. The bars in the graph represent the percentage of CPU cycles used for each mode. To the right of the graph are current and extreme percentages of time spent in each mode.

Below the graph, the Data Analyzer displays the COM and WAIT process queues:

• COM: The value displayed is the number of processes in the COM and COMO states.
• WAIT: The value displayed is the number of processes in the miscellaneous WAIT, MWAIT, COLPG, CEF, PFW, and FPG states.

CPU Process States

The right side of Figure 3-6 shows a sample CPU Process States display. Note that the value for MWAIT, in the left column, is the sum of all values for the states in the two right columns.

This display shows the number of processes in each process state. This number is tallied from the data in CPU Process view of the CPU page (Figure 3-6). For systems with many processes, the data in the CPU Process view is collected in segments over a short period of time because the amount of data a network packet can contain is limited. Because of this, the number of processes in the Process States pane might differ slightly from what is reported in $MONITOR STATES.

Appendix A contains explanations of the CPU process states.

3.2.2.3 OpenVMS CPU Mode Details

The lower pane of the CPU Modes page contains CPU mode details, as shown in Figure 3-7.

Figure 3-7 OpenVMS CPU Mode Details Pane

In the OpenVMS CPU Mode Details pane, the following data is displayed:

The status bar in the OpenVMS CPU Mode Details pane (see Figure 3-7) shows the potential number of physical CPUs on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of CPU mode data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.2.4 OpenVMS CPU Process Summary

To display the OpenVMS CPU Process Summary pane at the bottom of the CPU page, select CPU Process Summary from the View menu (Figure 3-6). Figure 3-8 shows a sample OpenVMS CPU Process Summary pane.

Figure 3-8 OpenVMS CPU Process Summary Pane

The OpenVMS CPU Process Summary pane displays the following data:

Displaying Single Process Information

When you double-click a PID on the lower part of an OpenVMS CPU Process Summary (Figure 3-8), Memory Summary (Figure 3-10), or I/O Summary (Figure 3-12) page, the Data Analyzer displays the first of several OpenVMS Single Process pages.

On these pages, you can click tabs to display specific data about one process. Alternatively, you can display all of the information on the pages on a single vertical or horizontal grid page.

This data includes a combination of data elements from the CPU Process, Memory, and I/O pages, as well as data for specific quota utilization, current image, and queue wait time. These pages are described in more detail in Section 3.3.

The status bar in the OpenVMS CPU Process Summary Pane (Figure 3-8) shows the total number of processes on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of CPU process data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.3 Memory Summaries and Details

The Memory Summary and Memory Details pages contain statistics about memory usage on the node you select. The Memory Summary pages displayed for OpenVMS and Windows nodes are somewhat different, as described in the following sections. The Memory Details page exists only for OpenVMS systems.

3.2.3.1 Windows Memory Summary

To display the Windows Memory Summary page, you can use either of the following methods:

• Double-click a node, and then click the Memory tab (Figure 3-3).
• Double-click a value under the MEM heading (Figure 3-3).

The Data Analyzer displays the Windows Memory page (Figure 3-9).

Figure 3-9 Windows Memory

The Current and Extreme amounts on the page display the data shown in the following table. The table also indicates what the graph amounts represent.

When you double-click a value under the MEM heading in an OpenVMS Node pane, or if you click the Memory tab, the Data Analyzer displays the OpenVMS Memory Summary page (Figure 3-10).

Alternatively, if you click the View menu on the OpenVMS Memory Summary page, the following options are displayed in a shortcut menu:

• Memory Summary View
• Memory Details View

You can click Memory Summary View to select the Memory Summary page, shown in Figure 3-10.

Figure 3-10 OpenVMS Memory Summary

The graph in the top pane of Figure 3-10 shows memory distribution (Free, Used, and Modified) as absolute values, in megabytes of memory. Current and extreme values are also listed for each type of memory distribution. (Free memory uses the lowest seen value as its extreme.) Bad Pages show the number of pages that the operating system has marked as bad.

The thresholds that you see in the graph are the ones set for the LOMEMY event. (The LOMEMY thresholds are also in the display of values for the MEM field in the OpenVMS Group/Node pane shown in Figure 2-25.)

The lower pane in Figure 3-10 displays the data shown in the following table, including an abbreviation of the event that is related to each type of data, where applicable.

When you double-click a PID on the lower part of the Memory Summary page (Figure 3-10), the Data Analyzer displays an OpenVMS Single Process (Figure 3-23), where you can click tabs to display pages containing specific data about one process. This data includes a combination of data from the CPU Process, Memory, and I/O pages, as well as data for specific quota utilization, current image, and queue wait time. These pages are described in Section 3.3.

The status bar in the Memory Summary page (Figure 3-10) shows the total number of processes on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of memory data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.3.3 OpenVMS Memory Details

When you click the View menu on the OpenVMS Memory Summary page (Figure 3-10), the following options are displayed in a shortcut menu. To display memory details, select that option.

• Memory Summary View
• Memory Details View (Alpha only)

The Data Analyzer displays the OpenVMS Memory Details page (Figure 3-11).

Figure 3-11 OpenVMS Memory Details

The following data items are in a box at the top left of the page:

To the right of the box is a list of system memory data that is displayed in the bar graphs at the bottom of the page. You can toggle these data items on or off (that is, to display them as bar graphs). You can also click a small box to choose between Linear and Logarithmic bar graph displays.

The system memory data items are described in Table 3-5.

To the right of the system memory data is a list of single RAD data items, which are described in Section 3.3.7. You can toggle these items to display them in bar graphs.

Below the list of single RAD items is a box where you can toggle between Percentage and Raw Data to display Current and Extreme values to the right of the bar graphs.

3.2.4 OpenVMS I/O Summary and Page/Swap Files

By clicking the I/O tab on any OpenVMS node data page, you can display a page that contains summaries of accumulated I/O rates. In the top pane, the summary covers all processes; in the lower pane, the summary is for one process.

From the View menu, you can also choose to display (in the lower pane) a list of page and swap files.

3.2.4.1 OpenVMS I/O Summary

The OpenVMS I/O Summary page displays the rate, per second, at which I/O transfers take place, including paging write I/O (WIO), direct I/O (DIO), and buffered I/O (BIO). In the top pane, the summary is for all CPUs; in the lower pane, the summary is for one process.

When you double-click a data item under the DIO or BIO heading on the Node pane, or if you click the I/O tab, by default, the Data Analyzer displays the OpenVMS I/O Summary (Figure 3-12).

Figure 3-12 OpenVMS I/O Summary

The graph in the top pane represents the percentage of thresholds for the types of I/O shown in Table 3-7. The table also shows the event that is related to each data item. For information about setting event thresholds, see Section 7.8.

Current and peak values are listed for each type of I/O. Values that exceed thresholds set by the events indicated in the table are displayed in red on the screen. Appendix B describes OpenVMS and Windows events.

To the right of the graph, the following values are listed:

The lower pane displays summary accumulated I/O rates on a per-process basis. The following data is displayed:

When you double-click a PID on the lower part of the I/O Summary page, the Data Analyzer displays an OpenVMS Single Process, where you can click tabs to display specific data about one process. See Section 3.3 for more details.

The status bar in the OpenVMS I/O Summary page (Figure 3-12) shows the total number of processes on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of I/O data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.4.2 OpenVMS I/O Page/Swap Files

Click I/O Page/Swap Files on the I/O page View menu to select this option. The Data Analyzer displays an OpenVMS I/O Page/Swap Files page. The top pane displays the same information as that in the OpenVMS I/O Summary page Figure 3-12. The lower pane contains the I/O Page/Swap Files pane shown in Figure 3-13.

Figure 3-13 OpenVMS I/O Page/Swap Files

The I/O Page/Swap Files pane displays the following data:

The status bar in the OpenVMS I/O Page/Swap Files pane (Figure 3-13) shows the total number of page and swap files on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of page/swap data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.5 Disk Summaries

The Disk tab on the Node Summary page (Figure 3-4) allows you to display disk pages that contain data about availability, count, and errors of disk devices on the system. OpenVMS disk data displays differ from those for Windows nodes, as described in the following sections.

On OpenVMS pages, the View menu lets you choose the following disk summaries:

• Status Summary
• Volume Summary

Also, on the Disk Status Summary, you can double-click a device name to display a Single Disk Summary page.

3.2.5.1 OpenVMS Disk Status Summary

To display the default disk page, the OpenVMS Disk Status Summary page (Figure 3-14), click the Disk tab on the OpenVMS Node Summary page (Figure 3-4). The Disk Status Summary page displays disk device data, including path, volume name, status, and mount, transaction, error, and resource wait counts.

Figure 3-14 OpenVMS Disk Status Summary

This summary displays the following data:

The status bar in the OpenVMS Disk Status Summary (Figure 3-14) shows the total number of volumes on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of disk status data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.5.2 OpenVMS Single Disk Summary

To collect single disk data and display the data on the Single Disk Summary, double-click a device name on the Disk Status Summary. Figure 3-15 is an example of a Single Disk Summary page. The display interval of the data collected is 5 seconds.

Note that you can sort the order in which data is displayed in the Single Disk Summary page by clicking a column header. To reverse the sort order of a column of data, click the column header again.

Figure 3-15 OpenVMS Single Disk Summary

This summary displays the following data:

By using the View option on the Disk Status Summary page (Figure 3-14), you can select the Volume Summary option to display the OpenVMS Disk Volume Summary (Figure 3-16). This page displays disk volume data, including path, volume name, disk block utilization, queue length, and operation rate.

Figure 3-16 OpenVMS Disk Volume Summary

The Disk Volume Summary page displays the data described in the following table. (The last two columns, Volume Size and Volume Limit, are displayed only on OpenVMS Version 7.3-2 and later systems.)

If the Data Analyzer detects that a disk volume size has increased, an VLSZCH event is signalled:

 
 AFFS55 Volume size of device $8$DKA200 (OPAL-X9U6) has changed 
   ^                              ^          ^ 
  Node                          Device     Volume 
  name                           name       name 
 

The status bar in the OpenVMS Disk Volume Summary (Figure 3-16) shows the total number of volumes on the node, the number that are listed, and the number that are filtered out. The status bar is updated with each data collection. The data collection rate is determined by the customization of disk volume data collection intervals. See Section 7.5 for instructions on how to change data collection intervals.

3.2.5.4 Windows Logical and Physical Disk Summaries

On Windows nodes, the View menu lets you choose the following summaries:

• Logical Disk Summary
• Physical Disk Summary

Windows Logical Disk Summary

A logical disk is the user-definable set of partitions under a drive letter. The Windows Logical Disk Summary displays logical disk device data, including path, label, percentage used, free space, and queue statistics.

To display the Logical Disk Summary page, follow these steps:

1. Double-click a node name in the Node pane to display the Windows Node Summary.
2. Click the Disk tab on the Windows Node Summary.

The Data Analyzer displays the Windows Logical Disk Summary page (Figure 3-17).

Figure 3-17 Windows Logical Disk Summary

This summary displays the following data:

Windows Physical Disk Summary

A physical disk is hardware used on your computer system. The Windows Physical Disk Summary displays disk volume data, including path, label, queue statistics, transfers, and bytes per second.

To display the Windows Physical Disk Summary, follow these steps:

1. Click the View menu on the Windows Logical Disk Summary.
2. Click the Physical Disk Summary menu option.

The Data Analyzer displays the Windows Physical Disk Summary page (Figure 3-18).

Figure 3-18 Windows Physical Disk Summary

This page displays the following data:

To display the OpenVMS Lock Contention page, click the Lock Contention tab on the OpenVMS Node Summary page (Figure 3-4). For all the nodes in the group you have selected, the Lock Contention page displays each resource for which a lock contention problem might exist.

Figure 3-19 shows a sample Lock Contention page containing resource names in decoded format, which is the default.

Figure 3-19 OpenVMS Lock Contention (Decoded Format)

(You can display a tooltip similar to the one shown in Figure 3-19 by holding the cursor on a resource line. See the Note in the introduction to this chapter for further details.)

By selecting the View menu (on the Lock Contention page), followed by the Resource names menu item, you can choose to display the resource name and parent resource name in either of two formats:

• Raw format (the format that SDA uses)
• Decoded format (the default format)

Figure 3-19 displays the resource names in decoded format. (The Data Analyzer decodes common resource names.)

The Lock Contention page displays the data described in Table 3-8. Numbered lines correspond to lines or items of data in the Lock Contention Log (Example 3-1).

The tooltip that is displayed when you hold the cursor over a line of data in Figure 3-19 contains the data described in Table 3-8, as well as the information described in Table 3-9.

Figure 3-20 shows the Lock Contention page with resource name data displayed in raw format. It also shows the tooltip that is displayed when you hold the cursor over a line of data.

Figure 3-20 OpenVMS Lock Contention (Raw Format)

In Figure 3-20, notice that a period is substituted for each unprintable character in the Resource Name and Parent Resource Name fields.

3.2.6.3 Lock Block Data

When you click the handle that precedes any line of resource data, the Data Analyzer displays the lock block data that is shown in Figure 3-21 and Figure 3-22.

Figure 3-21 OpenVMS Lock Block Data

Figure 3-22 OpenVMS Lock Block Data (Retry Stalled State)

The lock block data in these two figures includes additional lock information under the headings shown in Table 3-10. Numbered lines correspond to lines or items of data in the Lock Contention Log (Example 3-1).

To interpret the information displayed on the OpenVMS Lock Contention page, you need to understand OpenVMS lock management services. For more information, see the HP OpenVMS System Services Reference Manual.

3.2.6.4 Lock Block Log File

Example 3-1 contains an excerpt of a lock block log file. You can find a lock block log file in either of the following locations:

Numbers preceding lines or items of data in Example 3-1 correspond to numbered lines in Table 3-8, Table 3-9, and Section 3.2.6.3. Table 3-11 contains lines or items of data in a lock block log file that are not described in the other tables in this section.

************************************************** 
Time:  11-Nov-2003 14:54:13.656 
 
16)Reason for logging:    Number of locks has changed 
 
2) Master Lock Node:      ALTOS 
 
1) Resource Name:         I..... 
17)    GGMODE/CGMODE:     EX/EX 
6)     Status:            VALID 
7)     RSB Address:       FFFFFFFE.889F1580 
18)    Resource Name Dump (includes initial count byte): 
          0000:   000200 00004906  .I..... 
 
8)     Value Block Dump: 
          0000: 00000000 00000000  ........ 
          0008: 00000000 00000000  ........ 
                                            
19) Rdb Remote monitor resource 
          #:                 2 
 
3) Parent Resource Name:  Ý...D....VDEROOT     . 7.... 
7)     RSB Address:       FFFFFFFE.8847DB80 
20)    Resource Name Dump (includes initial count byte): 
          0000: 00004400 0000DD1C  .....D.. 
          0008: 4F4F5245 44560200  ..VDEROO 
          0010: A0002020 20202054  T     .. 
          0018:       00 00000237  7.... 
 
8)     Value Block Dump: 
          0000: 00000000 00000000  ........ 
          0008: 00000000 00000000  ........ 
 
21)    Rdb global database name resource 
          Disk volume name:  VDEROOT 
          FID for file:      (14240,2,0) 
 
22) Lock data is being collected 
 
5)     Granted lock count:       1 
5)     Conversion lock count:    0 
5)     Waiting lock count:       4 
5)     Stalled lock count:       0 
 
       10)      9)               11)           12)      13) Master copy info:   15) 
      Lock     Node   Process  Process         Lock    Gr/Cv Remote Remote   Flags 
      State           PID      Name            ID       Mode Node   Lock ID 
                                                              23)    24) 
      Granted  ALTOS  28E00441 RDMS_MONITOR70  04014B37 EX    (Local copy)      NQUE SYNC SYS 
      Waiting  ALTOS  2880023F RDMS_MONITOR70  4C0065B5 PR   TSAVO  32005001      SYNC SYS  NDLW 
      Waiting  ALTOS  00000000 (EPID=28A0023D) 4C0144C4 PR   ETOSHA 74005E36      SYNC SYS  NDLW 
      Waiting  ALTOS  28C00448 RDMS_MONITOR70  1D0144A3 PR   CHOBE  77005906      SYNC SYS  NDLW 
      Waiting  ALTOS  28E026C3 VDE$KEPT126A3   01014B2D PR    (Local copy)             SYS  NDLW 
 
************************************************** 

When you double-click a row in the lower part of an OpenVMS Mode Details (Figure 3-7), OpenVMS CPU Process Summary (Figure 3-8), Memory (Figure 3-10), or I/O (Figure 3-12) pages, the Data Analyzer displays the first of several OpenVMS Single Process pages.

Alternatively, you can right-click a row and select "Display...". The View menu item contains three display options, shown in Figure 3-23.

Figure 3-23 Single Process Window

Explanations of the choices in the View menu are the following:

• Tabs: individual tabs for each Single Process display:
  • Process Information
  • Working Set
  • Execution Rates
  • Process Quotas
  • Wait States
  • Job Quotas
  • RAD Counters
• Vertical Grid: all of the Single Process displays combined in one vertically-oriented grid
• Horizontal Grid: all of the Single Process displays combined in one horizontally-oriented grid

The following sections describe the individual tabs or sections of the vertical or horizontal grids.

Each section refers to the vertical grid display shown in Figure 3-24. The status bar displays the current image that the process is running.

Figure 3-24 Single Process Vertical Grid Display

Table 3-12 describes the Process Information data shown in Figure 3-24.

The data on this page is displayed at the default intervals shown for Single Process Data on the Data Collection Customization page.

Table 3-13 describes the Working Set data shown in Figure 3-24.

Table 3-14 describes the Execution Rates data shown in Figure 3-24.

Table 3-15 describes the Process Quotas data shown in Figure 3-24.

Note that when you display the SWAPPER process, no values are listed in this section. The SWAPPER process does not have quotas defined in the same way as other system and user processes do.

Table 3-16 describes the Wait States data shown in Figure 3-24.

In the graph, "Current" refers to the percentage of elapsed time each process spends in one of the computed wait states. If a process spends all its time waiting in one state, the total gradually reaches 100%.

How Wait States are Calculated

The wait state specifies why a process cannot execute, based on calculations made on collected data. Each value is calculated over an entire data collection period of approximately 2 minutes. The graph shows, over this period of time, the percentage of time a process spends in each wait state. Each value is an exponential average that approximates a moving average. A more detailed explanation follows.

When monitoring of a single process starts, all wait state values are zero. When the system periodically checks the process, the system first subtracts 10% from each value. It then adds a value of 10 to the wait state the process is currently in, if any.

For example, at the start, if a process is found to be in the Control wait state, the graph immediately registers 10 for Control. If the process is still in the Control wait state the next time it is checked, the graph shows Control at 19. This value is 90% of the original 10 (or 9), plus 10 (the value currently being added).

The next time the process is checked, if it is found to be in the Buffered I/O wait state, Buffered I/O is set to 10 and Control is set to 17 (approximately 90% of the previous value of 19).

The following time the process is checked, if it is not in a wait state at all, Buffered I/O is set to 9 (90% of 10), and Control is set to 15 (90% of 17).

Appendix A contains descriptions of wait states.

Table 3-17 describes the Job Quota data shown in Figure 3-24.

Table 3-18 describes the RAD Counters data shown in Figure 3-24. The RAD (Resource Affinity Domain) Counters data page is displayed for Alpha and I64 systems.