Procedure: Getting Node Canister And Cluster Information Using A Usb Key; Procedure: Understanding The System Status Using The Leds - IBM Storwize V7000 Troubleshooting And Maintenance Manual

The Home page shows a table of node errors that exist on the node and a table of node details for the
current node. The node errors are shown in priority order.
The node details are divided into several sections. Each section has a tab. Examine the data that is
reported in each tab for the information that you want. The Node tab shows general information
about the node that includes the node state and whether it is a configuration node. The Hardware tab
shows information about the hardware. The Access tab shows the cluster IP address and the service
address for this node. The Location tab identifies enclosure in which the node canister is located.
Procedure: Getting node canister and cluster information using a USB
key
This procedure explains how to view information about the node canister and cluster using a USB key.
Use any USB key with a FAT32 file system, a EXT2 file system, or a EXT3 file system on its first partition.
1. Ensure that the USB key does not contain a file named satask.txt in the root directory.
If satask.txt does exist in the directory, the node attempts to run the command that is specified in
the file. The information that is returned is appended to the satask_result.html file. Delete this file if
you no longer want the previous output.
2. Insert the USB key in the USB port 1 of the node canister from which you want to collect data.
3. The node canister fault LED flashes. It continues to flash while the information is collected and
written to the USB key.
4. Wait until the LED stops flashing before removing the USB key.
Because the LED is a fault indicator, it might remain permanently on or off.
5. View the results in a web browser.

Procedure: Understanding the system status using the LEDs

This procedure helps you determine the system status using the LED indicators on the system.
The LEDs provide a general idea of the system status. You can obtain more detail from the management
GUI and the service assistant. Examine the LEDs when you are not able to access the management GUI
or the service assistant, or when the system is not showing any information about a device. For
information about the LEDs, go to "Power supply unit and battery for the control enclosure" on page 5,
"Power supply unit for the expansion enclosure" on page 6, "Fibre Channel ports and indicators" on
page 7, "Ethernet ports and indicators" on page 10, "Node canister SAS ports and indicators" on page 11,
"Node canister LEDs" on page 12, "Expansion canister SAS ports and indicators" on page 14, and
"Expansion canister LEDs" on page 15
The procedure shows the status for the enclosure chassis, power supply units and batteries, and canisters.
It does not show the status for the drives.
The first step is to determine the state of the control enclosure, which includes its power supply units,
batteries, and node canisters. Your control enclosure is operational if you can manage the system using
the management GUI. You might also want to view the status of the individual power supply units,
batteries, or node canisters.
Find the control enclosure for the system that you are troubleshooting. There is one control enclosure in a
system. If you are unsure which one is the control enclosure, go to "Procedure: Identifying which
enclosure or canister to service" on page 40.
1. Use the state of the ac power failure, power supply OK, fan failure, and dc power failure LEDs on
each power supply unit in the enclosure to determine if there is power to the system, or if there are
power problems.
42
Storwize V7000 Version 6.1.0: Troubleshooting, Recovery, and Maintenance Guide