HP OpenVMS Systems Documentation

HP Availability Manager User's Guide

To display the default disk page, the OpenVMS Disk Status Summary (Figure 3-14), click the Disk tab on the OpenVMS Node Summary page. 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:

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 Page

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 Page

The disk volume summary 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 Availability Manager 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

Windows Logical and Physical Disk Summaries

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

• Logical Disk Summary
• Physical 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 Availability Manager displays the Windows Logical Disk Summary page (Figure 3-17).

Figure 3-17 Windows Logical Disk Summary Page

This summary displays the following data:

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 Availability Manager displays the Windows Physical Disk Summary page (Figure 3-18).

Figure 3-18 Windows Physical Disk Summary Page

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.

Example 3-1 shows a sample Lock Contention Log file, accompanied by an explanation of its contents.

3.2.6.1 Lock Contention Page in Decoded Format

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 Page (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 Availability Manager decodes all common resource names.)

The Lock Contention page displays the data described in Table 3-7. Numbered lines correspond to lines or items of data in the Lock Contention Log (see 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 3-7, as well as the information described in Table 3-8.

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 Page (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 preceding any line of resource data, the Availability Manager displays the lock block data 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 3-9. Numbered lines correspond to lines or items of data in the Lock Contention Log (see 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.