IBM Storwize V7000, Problem Determination Manual

Page: 217 / 314

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 have entered the “/service” path after the service IP address.
Point your web browser to <
control enclosure management IP address >/service for
the node that you want to work on. For example, if you set a service address of
11.22.33.44 for a node canister, point your browser to 11.22.33.44/service.
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 192. Try
accessing the service assistant through these addresses. Verify that the IP
address, subnet, and gateway are 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 canister” on page 205.
v You cannot connect to the service assistant if the node canister is not able to
start the code. To verify that the LEDs indicate that the code is active, see
“Procedure: Understanding the system status using the LEDs” on page 198.
v
The service assistant is configured on Ethernet port 1 of a node canister. 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 203 for details.
v
Ping the management 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 canister” on page 205 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 subnet mask 255.255.255.0 is preconfigured on Ethernet
port 1 of the upper canister, canister 1. The service IP address 192.168.70.122
subnet mask 255.255.255.0 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 canister” on page 205 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 206.
Chapter 5. Control enclosure
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