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Managing Superdome Complexes: A Guide for HP-UX System Administrators: HP 9000 Computers > Chapter 4 Configuring and Managing Superdome Partitions
The Partition Manager—A Guided Tour |
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The Partition Manager provides a graphical user interface for configuring partitions (and other resources) in your Superdome complex. Patterned after a commonly used PC-based file exploration utility, the Partition Manager (also known as parmgr) is easy to learn and use.
There are a variety of tools that can be used to configure the partitions in a Superdome complex, each having its own advantages over the others. Which tool is best to use for a given task depends on how comfortable you are with using the tool, and the specific task you are trying to do. The Partition Manager has the following advantages over the other tools:
Though it can be used to configure all of the partitions in a Superdome complex (except the Genesis Partition), the Partition Manager must run in (or via) an existing partition in the complex that you are configuring.
You can run the Partition Manager directly from an HP-UX command-line prompt. Its path is: /opt/parmgr/bin/parmgr
From SAM: If you are running SAM, the Partition Manager is one of the selections available from the primary level of SAM's interface From an HP-UX environment, the preferred method of running Partition Manager is from the HP-UX command line as described in the previous section. It is also possible to run Partition Manager from a web browser if you are working from a Microsoft Windows-based PC. To use this feature, a web server must be installed and configured on the partition where you will run Partition Manager. The Apache web server will be automatically installed and configured when the ObAM Runtime Environment bundle (required by Partition Manager) is installed. This is currently the only web server supported by the ObAM Runtime Environment. Though already installed, the web server must be activated before it can be used. See “Configuring the Web Server” for more information. Because of dependencies on the Java runtime Environment and the Java Plug-in, running Partition Manager from a web browser is currently supported only in the following client environments: Table 4-4 Supported Client-side Environments
Both the Java Plug-in and the Java Runtime Environment are included with the ObAM Runtime Environment bundle. When the web server is first activated, point your browser to the following URL to view instructions on installing and configuring the Java Plug-in and the Java Runtime Environment: http://hostname:1188/jpi/pc-compatible-only.html where hostname is the network hostname of the partition that will run Partition Manager. By default, only systems from the same network domain may access the web server running on a partition. See “Configuring the Web Server” for information on changing this setting. Once the Java Plug-in and Java Runtime Environment are properly installed, Partition Manager can be started by pointing a supported web browser at the URL: http://hostname:1188/parmgr where hostname is the network hostname of the partition that will run Partition Manager. A welcome page containing the following links will be displayed:
Clicking on the Run Partition Manager link will display the Partition Manager launch page in a new browser window.
Before Partition Manager is launched, a login dialog will appear, prompting for a user name and password. Only the superuser is allowed to run Partition Manager. Once the user is authorized, Partition Manager will be launched in a window outside the browser. Additional dialogs for the tasks performed by Partition Manager will be displayed in new windows (just as though you were running the program locally). When you request online help, another browser window (with full browser navigation) will be activated to display the help topic. When you are finished using Partition Manager, you must close the launch page after exiting Partition Manager. The Apache web server will be automatically installed and configured when the ObAM Runtime Environment bundle (required by Partition Manager) is installed. Apache is currently the only web server supported by the ObAM Runtime Environment. This server can be used to host any ObAM-based application. By default, only systems from the same network domain can access Partition Manager from the web server. For example, if the server is running on a partition whose network address is server.site1.ourco.com, then only systems in the site1.ourco.com domain will be able to launch Partition Manager on this server. This access is controlled by the file /usr/obam/server/conf/httpd.conf. There are two entries in the file of the form:
If Partition Manager was installed during a cold install of HP-UX, these fields will contain the string insert_domain_here, since the network domain was not available at the time that the configuration script was run. In this case, edit this file and replace those strings with the actual domain name (for example: site1.ourco.com). If you do not do this, no one will have permission to access Partition Manager via the web. Additional modifications can be made to these fields to grant other systems and domains access to the server. The web server must be activated before it can be used. To activate the web server, as the superuser run the following HP-UX command: /usr/obam/server/bin/apachectl start If you modify the configuration file after the web server has already been started, you must restart it by executing the following HP-UX command before the new configuration will be recognized: /usr/obam/server/bin/apachectl restart
Because several components are involved in web browser access to Partition Manager, a number of things could cause problems:
Superdome computers and the Partition Manager are designed around an object hierarchy. The root of the hierarchy is the complex. It contains objects (representing both physical and logical entities) in various levels below the complex: these include partitions, cells, I/O chassis, PCI I/O cards, processors, and memory modules. The hierarchy is shown in Figure 4-3 “Partition Manager Object Hierarchy”. The Partition Manager allows you to view a Superdome complex at various levels of detail. At all levels the primary display window is displayed in two panes:
In addition to the two display areas there are several other display elements common to all Partition Manager levels:
When started with no parameters (or from a Web browser), the Partition Manager will initially show the state of a Superdome computer at the complex level. Both the left and right sides of the display will show a list of the partitions currently defined in the complex and a special “partition” called Available Resources. Available Resources is a container used to hold and display the resources in the complex that are not part of any other partition. Complex Details. In addition to the list of partitions defined in the complex, a lot of detailed information about the resources of the complex is available. To view this information, use the context menu, or the Complex drop-down menu in the menu bar to select Show Complex Details .... This will bring up a new window containing six panels of information about various elements of the complex.
Click on the tab for each panel to familiarize yourself with what information is available in each area. Partition Manager's help system describes in detail what is available under each tab. If you want information about the resources of a specific partition, first select the partition by clicking on its name in the object list on the left-hand-side of the display. The right-hand-side of the display will update to show a summary of the resources for the selected partition. Partition Details. By default Partition Manager will list which cells and I/O chassis are part of the selected partition. In addition to this list, a lot of detailed information about the resources for the selected partition is available. To view this information, use the context menu, or the “Partition” drop-down menu in the menu bar to select “Show Partition Details ...”. This will bring up a new window containing four panels of information about various elements of the complex.
Partitions are logical collections of cell boards. Cell boards contain (among other things), the processors and memory modules of the complex. The Partition Manager lets you query cell boards to determine how many processors and how much memory they contain, and the status of those items. Cell Details. Unlike the higher levels of the object hierarchy, there is no summary level for cells. If you click on the name of a partition in the object list on the left portion of Partition Manager's primary display area (to bring up the list of cells and chassis that comprise that partition), then on the right-hand-side of the display double-click on the entry for the cell that you want to know about, the Cell Details window will be displayed. The Cell Details window has two panels of information:
At least one of the cell boards in every partition must have an I/O chassis connected to it (more than one can). The I/O chassis holds the I/O cards that connect devices such as network cards and disk drives to the complex. At least one of the I/O chassis associated with a partition must contain a core I/O board allowing devices in that chassis to be used to boot the system. I/O Details. After selecting a partition from the object list on the left-hand-side of the Partition Manager's primary display window, single-click on the entry for the I/O chassis (on the right-hand-side of the display) that you want to query. Then select Show I/O Details... from the I/O menu to bring up the I/O Details window containing information about the selected I/O chassis.
The I/O Details window has three panels of information:
The entries in the I/O Details window can be filtered to show a sub-set of all available information. This allows you to focus on specific cards or entries. Details on what each of the above panels show and how to filter the output are available in the Partition Manager help system. The Partition Manager is equipped with several task wizards to guide you through tasks that have many steps (for example creating a new partition). These behave in a similar way to many PC software setup routines. Several of these wizards can be launched directly by specifying the appropriate parameters when starting the Partition Manager from an HP-UX command-line prompt. For details on these parameters, see parmgr(1M). |
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