Problem: Cannot Connect To The Service Assistant; Problem: Node Canister Location Error - IBM Storwize V7000 Troubleshooting And Maintenance Manual

v If you know the service address of any node canister in the system, follow a similar procedure to the
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4 one described previously. Rather than using cluster address/service to start the service assistant, use the
service address that you know.
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v Use a USB key to find the service address of a node. For more information, go to "Procedure: Getting
node canister and cluster information using a USB key" on page 42.

Problem: Cannot connect to the service assistant

This topic provides assistance if you are unable to display the service assistant on your browser.
You might encounter a number of situations when you cannot connect to the service assistant.
v Check that you are using the correct service address for the node canister. To find the IPv4 and IPv6
addresses that are configured on the node, go to "Problem: Unknown service address of a node
canister" on page 37. Try accessing the service assistant through these addresses. Verify that the IP
address, subnet, and gateway are all specified correctly for IPv4 addresses. Verify that the IP address,
prefix, and gateway are specified for the IPv6 addresses. If any of the values are incorrect, see
"Procedure: Changing the service IP address of a node" on page 46.
v You cannot connect to the service assistant if the node canister is not able to start the Storwize V7000
code. To verify that the LEDs indicate that the Storwize V7000 code is active, see "Procedure:
Understanding the system status using the LEDs" on page 42.
v The service assistant is configured on Ethernet port 1 of a node. Verify that an Ethernet cable is
connected to this port and to an active port on your Ethernet network. See "Procedure: Finding the
status of the Ethernet connections" on page 44 for details.
v Ping the cluster address to see if the Ethernet network permits the connection. If the ping fails, check
the Ethernet network configuration to see if there is a routing or a firewall issue. Check that the
Ethernet network configuration is compatible with the gateway and subnet or prefix settings. Check
that you have not used an address that is used by another device on your Ethernet network. If
necessary, change the network configuration or see "Procedure: Changing the service IP address of a
node" on page 46 to change the service IP address of a node.
v A default service address is initially assigned to each node canister. The service IP address
192.168.70.121 is preconfigured on Ethernet port 1 of the upper canister, canister 1. The service IP
address 192.168.70.122 is preconfigured on Ethernet port 2 of the lower canister, canister 2.
You might not be able to access these addresses because of the following conditions:
– These addresses are the same as the addresses that are used by other devices on the network.
– These addresses cannot be accessed on your network.
– There are other reasons why they are not suitable for use on your network.
If the previous conditions apply, see "Procedure: Changing the service IP address of a node" on page
46 to change the service IP address to one that works in your environment.
If you are unable to change the service address, for example, because you cannot use a USB key in the
environment, see "Procedure: Accessing a canister using a directly attached Ethernet cable" on page 48.

Problem: Node canister location error

The node error that is listed on the service assistant home page or in the event cluster event log can
indicate a location error.
To find out how to resolve the node error, go to "Procedure: Fixing node errors" on page 45.
Be aware of the following items:
v Each control enclosure must have two node canisters installed.
v Node canisters and expansion canisters are not interchangeable. A node canister cannot operate in an
expansion enclosure. An expansion canister cannot operate in a control enclosure.
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Storwize V7000 Version 6.1.0: Troubleshooting, Recovery, and Maintenance Guide