Document revision date: 15 July 2002

This page (Figure 6-24) allows you to turn checksumming on or off for the virtual circuit.

Figure 6-24 LAN VC Checksumming Page

6.4.3.4 LAN VC Compression Fix

Figure 6-25 LAN VC Compression Page

6.4.4 LAN Channel Fixes

• Channel Details...
• Adapter Details...
• Fixes...

Click the Fixes... menu item to display this list of available fixes:

• Adjust Priority
• Hops
• Maximum Packet Size

These fixes are described in the following sections.

6.4.4.1 LAN Path Adjust Priority Fix

Figure 6-26 LAN Path Adjust Priority Page

6.4.4.2 LAN Path Hops Fix

Figure 6-27 LAN Path Hops Page

6.4.4.3 LAN Path Maximum Packet Size Fix

Figure 6-28 LAN Path Maximum Packet Size Page

6.4.5 LAN Adapter Fixes

• Channel Details...
• Adapter Details...
• Fixes...

Select the Adapter Details menu item to display the Adapter Details window. From the Adapter Details window, select Fix... from the Fix menu. The Availability Manager displays the first of several pages, each of which contains a fix option:

Adjust Priority
Set Max Buffer Size
Start Adapter
Stop Adapter

These fixes are described in the following sections.

6.4.5.1 LAN Adapter Adjust Priority Fix

Figure 6-29 LAN Adapter Adjust Priority Page

6.4.5.2 LAN Adapter Set Maximum Buffer Fix

Figure 6-30 LAN Adapter Set Maximum Buffer Size Page

6.4.5.3 LAN Adapter Start Adapter Fix

Figure 6-31 LAN Adapter Start Adapter Page

6.4.5.4 LAN Adapter Stop Adapter Fix

Figure 6-32 LAN Adapter Stop Adapter Page

This chapter explains how to customize the following features of the Availability Manager:

Feature	Description
Nodes or groups of nodes	You can select one or more groups or individual nodes to monitor.
Group membership	You can change a node's default group membership.
Types of data collection	For OpenVMS nodes, you can select the types of data you want to collect as well as several types of collection intervals. (On Windows nodes, specific types of data are collected by default.)
Data filters	For OpenVMS nodes, you can specify a number of parameters and values that limit the amount of data that is collected.
Event filters	You can specify the severity of events that are displayed as well as several other filtering settings.
Security features	On Data Analyzer and Data Collector nodes, you can change passwords. On OpenVMS Data Collector nodes, you can edit a file that contains security triplets.

How to Specify Which Nodes to Customize

In the Application window, you can select the Customize option in either of the following ways:

• To customize groups of nodes, on the Application window menu bar, click the Customize menu. The Availability Manager displays the popup menu shown in Figure 7-1.
  

  Figure 7-1 Customize Menu in Application Window

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• To customize a specific node, right-click a node name in the Node pane of the Application window (see Figure 1-1). The Availability Manager displays the popup menu shown in Figure 7-2.
  

  Figure 7-2 Customize Menu in Node Pane

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Depending on which Customize menu you use and your choice of menu items, in a group of nodes,your customizations can affect one or more nodes, as indicated in the following table.

Nodes Affected	Action
All nodes	Click Customize Application... on the menu shown in Figure 7-1.
All Windows nodes	Click Customize Windows NT... on the menu shown in Figure 7-1.
All OpenVMS nodes	Click Customize OpenVMS... on the menu shown in Figure 7-1.
One node	Click Customize... on the popup menu shown in Figure 7-2. The customization options you choose will affect only the node you have selected.

7.1 Specifying Groups or Individual Nodes to Monitor

When you select Customize Application on the Application window Customize menu (Figure 7-1), the Availability Manager displays a Group/Node Lists tab (Figure 7-3).

Figure 7-3 Group/Node Lists Customization Page

You can select either of the following lists of nodes to monitor:

• Use Group List
  Using the correct case, enter the names of the groups of nodes you want to monitor.
• Use Node List
  Using the correct case, enter the names of individual nodes you want to monitor.

If you decide to return to the default (monitor all nodes) or to enter names again, click Use default values.

After you enter a list of groups or individual nodes, click one of the following choices:

Option	Description
OK	Accepts the choice of names you have entered and exits the page.
Cancel	Cancels the choice of names and does not exit the page.
Apply	Accepts the choice of names you have entered but does not exit the page.

To put the list into effect, exit the Availability Manager and restart it.

7.2 Changing the Group Membership of a Node

Each Availability Manager Data Collector node is assigned to the DECAMDS group by default. The following sections explain how to change the group membership of nodes.

You need to edit a logical on each Data Collector node to change the group for that node. To do this, follow these steps:

1. Assign a unique name of up to 15 alphanumeric characters to the AMDS$GROUP_NAME logical name in the AMDS$AM_SYSTEM:AMDS$AM_LOGICALS.COM file. For example:

   $ AMDS$DEF AMDS$GROUP_NAME FINANCE ! Group FINANCE; OpenVMS Cluster alias

2. Apply the logical name by restarting the Data Collector:

   $ @SYS$STARTUP:AMDS$AM_STARTUP RESTART

You need to edit the Registry to change the group of a Windows node. To edit the Registry, follow these steps:

1. Click the Windows Start button. On the lists displayed, first click Programs and then Command Prompt.
2. Type REGEDIT after the angle prompt (>).
   The system displays a screen for the Registry Editor, with a list of entries under My Computer.
3. On the list displayed, click HKEY_LOCAL_MACHINE .
4. Click SYSTEM.
5. Click CurrentControlSet.
6. Click damdrvr.
7. Click Parameters.
8. Double-click Group Name. Then type a new group name of 15 alphanumeric characters or fewer, and click OK to make the change.
9. On the Control Panel, click Services, and then click Stop for "PerfServ."
10. Again on the Control Panel, click Devices, and then click Stop for "damdrvr."
11. First restart damdrvr under "Devices," and then restart PerfServ under "Services."
    This step completes the change of groups for this node.

When you click the Customize OpenVMS... menu option in the Application window and then click the Data Collection tab, the Availability Manager displays the OpenVMS Data Collection Customization page, where you can choose types of data you want to collect. You can also change the default Availability Manager intervals at which data is collected or updated.

Figure 7-4 shows the OpenVMS Data Collection page.

Figure 7-4 OpenVMS Data Collection Customization Page

Table 7-1 identifies the page where each type of data collected appears and indicates whether or not that type of data collection is a default.

Table 7-1 Data Collection Choices

Data Collected	Default	Page Where Data Is Displayed
Cluster summary data	No	Cluster Summary page
CPU mode data	No	CPU Modes Summary page
CPU summary data	No	CPU Process States page
Disk status data	No	Disk Status Summary page
Disk volume data	No	Disk Volume Summary page
I/O data	No	I/O Summaries page
Lock contention data	No	Lock Contention page
Memory data	No	Memory Summary page
Node summary data	Yes	Node pane, Node Summary page, and the top pane of the CPU, Memory, and I/O pages
Page/Swap file data	No	I/O Page Faults page
Single disk data	Yes 1	Single Disk Summary page
Single process data	Yes 2	Data collection for the Process Information page

You can choose additional types of data to collect by selecting the Collect check box on the Data Collection Customization page of the Customize OpenVMS... menu (Figure 7-4). A check mark indicates that data will be collected at the intervals described in Table 7-2.

Table 7-2 Data Collection Intervals

Interval (in seconds)	Description
Display	How often the data display is refreshed.
Event	If events occur related to the screen, how often data is collected.
NoEvent	If no events occur related to the screen, how often data is collected.

You can enter a different collection interval by double-clicking the value; then delete the old value and enter a new one. If you change your mind and decide to return to the default collection interval, select one or more rows of data items: then click Use default values. The system displays the default values for all the collection intervals.

When you finish customizing your data collection, select one of the following options at the bottom of the page:

Option	Description
OK	To confirm any changes you have made and exit the page.
Cancel	To cancel any changes you have made and exit the page.
Apply	To confirm and apply any changes you have made and not exit the page.

7.4 Customizing OpenVMS Data Filters

When you select the Customize OpenVMS... menu option and click the Filter tab, the Availability Manager displays a page that allows you to display specific kinds of data by selecting check boxes. The types of data filters available are as follows:

• CPU Filters
• Disk Status
• Disk Volume
• I/O
• Lock Contention
• Memory Filters
• Page/Swap File

Filters can vary depending on the type of data collected. For example, filters might be process states or a variety of rates and counts. The following sections describe data filters that are available for various types of data collection.

Each filter page contains the following note: "Changes to these settings will override the program default settings." This means that settings that are changed on the node level override settings made at the application and program (or GUI) level.

You can display the default values for the data items on the page at any time. To do this, select the item and click Use default values.

When you finish modifying a filters page, click one of the following options at the bottom of the page:

Option	Description
OK	To confirm any changes you have made and exit the page.
Cancel	To cancel any changes you have made and exit the page.
Apply	To confirm and apply any changes you have made and continue to display the page.

7.4.1 OpenVMS CPU Filters

When you click CPU Filters on the Filter page, the Availability Manager displays the OpenVMS CPU Filters page (Figure 7-5).

Figure 7-5 OpenVMS CPU Filters Page

This page allows you to change and select values that are displayed on the OpenVMS CPU Process States page (Figure 3-7).

You can change the current priority and rate of a process. By default, a process is displayed only if it has a Current Priority of 4 or more. Click the up or down arrow to increase or decrease the priority value by one. The default CPU rate is 0.0, which means that processes with any CPU rate used will be displayed. To limit the number of processes displayed, you can click the up or down arrow to increase or decrease the CPU rate by .5 each time you click.

The OpenVMS CPU Filters page also allows you to select the states of the processes that you want to display on the CPU Process States page. Select the check box for each state you want to display. (Process states are described in Appendix B.)

7.4.2 OpenVMS Disk Status Filters

Figure 7-6 OpenVMS Disk Status Filters Page

The OpenVMS Disk Status Summary page (Figure 3-13) displays the values you set on this filters page.

This filters page lets you change the following default values:

Data	Description
Error Count	The number of errors generated by the disk (a quick indicator of device problems).
Transaction	The number of in-progress file system operations for the disk.
Mount Count	The number of nodes that have the specified disk mounted.
RWAIT Count	An indicator that a system I/O operation is stalled, usually during normal connection failure recovery or volume processing of host-based shadowing.

This filters page also lets you check the states of the disks you want to display, as described in the following table:

Disk State	Description
Invalid	Disk is in an invalid state (Mount Verify Timeout is likely).
Shadow Member	Disk is a member of a shadow set.
Unavailable	Disk is set to unavailable.
Wrong Vol	Disk was mounted with the wrong volume name.
Mounted	Disk is logically mounted by a MOUNT command or a service call.
Mount Verify	Disk is waiting for a mount verification.
Offline	Disk is no longer physically mounted in device drive.
Online	Disk is physically mounted in device drive.

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