Check prerequisites for managed nodes

Prerequisite checking tests a node's manageability before it is brought under management. You can run a prerequisite check in the following ways:

• Automatically

  When you install an agent, the installation process automatically performs a prerequisite check, unless you clear the Run prerequisites check automatically during job execution check box in the Agent Installation dialog box.

• Manually

  You can start a prerequisite manually by selecting Run Prerequisite Check in the shortcut menu in the Configure Managed Nodes window, or by running the command line tool ovowreqcheck.

To launch the prerequisite check manually

1. Open the Node Configuration editor, if it is not already open.
   1. Select the Nodes folder in the console tree.
   2. Click on the Configuration toolbar to open the Node Configuration editor.
2. Select a node or nodes in the managed nodes list.
3. Right-click to open the context menu.
4. Click Run Prerequisite Check.

To view the results of the prerequisite check

1. When the prerequisite check begins, the Prerequisite Check Component dialog box opens and displays the following information:
   • Status: The Status column indicates the status for each listed node.

     View status options

     • Active: Prerequisite check is currently running on the node.
     • Failed: Check failed to run on the node. Failure could be caused by network problems, unavailable node, unresolved node name, or similar situations.
     • Completed: The prerequisite check ran on the node. It does not mean that all nodes are problem-free.
     • Pending: Prerequisite check has not yet run on the node.
     • Cancelled: User stopped the prerequisite check.
   • Node: The Node column displays the fully-qualified domain name or IP address of the node to be checked.
   • Result: The Result column gives a brief description of the results of the check. You can see further details by clicking on the individual node name to display information in the Description box, which displays both requirements and recommendations.

     View typical results messages

     • Active:
       Prerequisite check in progress.
     • Failed:
       Checked node is not available; either there is no network connection or firewall ports are not opened.
Node (name) cannot be resolved.
Platform not supported.
Cannot identify platform.
       
     • Completed:
       All checked prerequisites are okay.
All requirements are okay; at least one recommendation has failed.
At least one requirement could not be checked (it is not known whether the requirement is okay or not); all other successfully checked requirements are okay.
At least one requirement has failed.
Client does not have administrative privileges on this node.
       
     • Pending:
       Prereq check pending.
     • Cancelled:
       Prerequisite check cancelled.
2. When the prerequisite check completes, click OK to close the dialog box.

To see if the check passed or failed

1. From the console tree, select the node on which the check was run.
2. Right-click to open the context menu and select Properties to open the Properties dialog box.
3. Select the System tab and view the Prerequisite Check Passed check box for the status of the prerequisite check.

You can get the same information in the Node Configuration editor by selecting a node in the list of managed nodes and right-clicking on a name. Select Properties from the context menu and then the System tab in the Node Properties dialog box. The results of the prerequisite check appear in this dialog.

To restart the prerequisite check

If no check is currently running, you can restart the check after you have corrected any problems encountered by the original prerequisite check.

1. In the Prerequisite Check Component dialog box, select the nodes on which you want to run the check again. You can select more than one node.
2. Right-click to open the context menu.
3. Select Restart. The prerequisite check will run again on the selected nodes.
4. To cancel the check, right-click to open the context menu and select Cancel.
5. To copy the contents of the node list, right-click to open the context menu and select Copy.

To sort the columns

If no prerequisite check is in progress, you can sort by status, node, and result columns by clicking on the column. For example, clicking the Status column arranges the nodes according to status such as passed or failed.

Requirements not checked

The following requirements must be checked manually on DCE agents:

• On Tru64 systems:

  Required patches on TruCluster

  DCE on TruCluster

• On Linux systems:

  Kernel features

• On HP-UX systems:

  All kernel parameters except for nfile and nflocks

TIP:
To run the prerequisite check on Windows Vista nodes, you must first enable the Remote Registry service on the node. (On Windows Vista nodes, this service is by default disabled.)

Related Topics:

• ovowreqcheck
• ovoreqcheckagt
• Configure System information for managed nodes