In this e-Learning module, we will discuss how to monitor hardware to help diagnose and troubleshoot problems for the Lenovo Storage V series products. You will also learn how to use the products' management GUIs to monitor system performance.
The various LED indicators that are available on Lenovo Storage V series products indicate power, hard-disk drive activity, hardware errors, and more. These can be used for determining the location and cause of any problems. A release latch might also be available that provides access to a light-path diagnostics panel. The power LED indicates if power is available to the enclosure. The fault LED indicates a hardware fault with one of the enclosure components. The identify LED is used to identify the enclosure. Additionally, a small display might be available that shows the enclosure ID number.
The power supplies and canisters can be viewed from either the front or back of the hardware. In the examples shown here, various LEDs are available that indicate power supply state, fan failure, and dc power failure. Control enclosure power supplies include LEDs that indicate battery failure and battery state. Each node canister also includes LEDs that indicate the status of the node, whether there is a fault, and whether power is available.
To begin monitoring hardware using the management GUI, click the Monitoring icon, available from the Overview panel. The options on this menu vary depending on your system. Click Performance to go to the Performance panel. Various graphs display CPU utilization, interfaces, volumes, and Mdisks performance. You can select or unselect a variety of data that you would like to display. If available, you can show system statistics for a specified node. You can also show data in megabytes per second, or input/output operations per second.
If available, you can view the System panel in the management GUI to see a graphical representation of the system. This panel can be used to monitor physical and allocated capacity. Select the system name under the image to display general system and capacity information. If compression is active on your system, you can also see information on compressed capacity and savings. Click the button under the graphic to see the allocation or compression view of the system.
The System Details panel might also be available for your system. System hardware components are listed on the left side of the panel and include enclosures, drive slots, and canisters. Power supply units might also be listed. Click an item to display detailed information, such as part descriptions, lists of slots and drives, and associated capacity and port information.
Go to the Events panel to view events that have alerts. To run the fix procedure for an event, select the event, and click the Run This Fix Procedure button under Next Recommended Action. This takes you through the necessary fix procedure steps for the selected event.
In addition to the LED indicators, you can also use the service assistant tool to perform hardware monitoring and troubleshooting tasks. To access this tool, open a web browser, and enter the service IP address of a specific node. A similar screen to the one shown here is displayed. You can use the service assistant tool to diagnose problems when a node is not part of a system, to modify node properties, and to view logs. For more information about using the service assistant tool, see the troubleshooting and reference topics of the Lenovo Storage V series information center.
You can use the management GUI to view general information about the storage area network (or SAN) and host systems. To view specific information about these components, consider using the utilities provided by the component manufacturers.
In this e-Learning module, you learned about different ways to monitor hardware components, including using LED indicators for detection and troubleshooting, using the management GUI to monitor system performance, and how to use the service assistant tool.
To learn more about monitoring, maintaining, and troubleshooting your system, see topics in this information center. The troubleshooting, recovery, and maintenance documentation provides additional information. You can also find additional learning resources on the IBM Technical Training website.