Use the Disk Load Balancing window to move a disk load from one disk to one or more other disks within the same class. Disk load balancing is accomplished by changing the sizes of columns in a bar graph, where the columns represent disk utilization for a particular class and disk.
You can also enter disk metrics directly into a Disk Load Entry Form for system sizing and other purposes. The graph and table work together so that, after running the model, changes made in the graph are seen in the table, and vice versa.
See Also Performing Tasks in the Disk Load Balancing Window
The tasks you can perform in the Disk Load Balancing window include:
To balance the disk load across selected disks:
See Also Entering Disk Metrics
From the Operations menu, select Data Entry. The Disk Load Entry Form replaces the disk load balancing bar graph.
Changes to the disk metrics are made directly, but the disk utilization graph does not correspond to these changes until you run the model. After changing data, Close the Disk Load Balancing window and run the model before viewing the graphs again.
See Also Balancing the Disk Load
Use the File menu in the Disk Load Balancing window to access these menu items:
Use the Save menu item to save the Disk Load table in a .CSV or .SLK file.
Use the Print menu item to send the disk load graph to a printer or file.
See Also Print Graph Dialog Box
Use the Apply menu item to apply the disk load changes without closing the window.
Use the Cancel menu item to cancel any disk load changes and exit the window.
Use the Close menu item to apply the disk load changes and exit the window.
Use the View menu to access these menu items:
Use the Graph menu item to display the disk load balancing graph.
Use the Table menu item to display the disk load balancing table.
Use the Operations menu to access these menu items:
Use the Update View menu item to update the graph or table after selecting nodes, workloads, and disk utilizations.
Use the Balance View menu item to balance the load equally across all selected disks.
Use the Options menu to access these menu items:
Use the Table Data menu item and Table Options buttons to select the disk metric for display in the disk load entry form. You can select from:
Use the Graph Data menu item and Graph Options buttons to select the disk metric for display in the disk load graph. You can select from:
Use the Log Messages toggle button to display load changes in the Session Messages window. When Log Messages is enabled, messages are displayed.
Use the Nodes field to select one or more nodes whose data will be displayed in the Disk Load Balancing window. To select more than one node, press Ctrl and click MB1 on each node. Or click and drag MB1 to select a number of consecutive nodes.
The nodes listed in the field and used for the global view are those in your configuration. If you change the view after you have already distributed the disk load, the changed values will be lost.
Use the Workloads field to select one or more workloads for display in the Disk Load Balancing window. To select more than one workload, press Ctrl and click MB1 on each workload. Or click and drag MB1 to select a number of consecutive workloads.
Use the Disk Utilizations field to select one or more disks for display.
Select the disks for balancing or data entry from the Disk/Util % area of the window. Double click on Disk or Util % to sort alphabetically by disk or numerically by utilization.
Use the Update View push button to update the graph or form after selecting nodes, classes, or disks.