Procedure: Rescuing Node Canister Software From Another Node (Node Rescue); San Problem Determination - IBM Storwize V7000 Maintenance Manual

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Procedure: Rescuing node canister software from another node (node
rescue)

SAN problem determination

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Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide
Special tools that are only available to the support teams are required to interpret
the contents of the support package. The files are not designed for customer use.
Always follow the instructions that are given by the support team to determine
whether to collect the package by using the management GUI or the service
assistant. Instruction is also given for which package content option is required.
v If you are collecting the package by using the management GUI, select Settings
> Support. Click Download Support Package. Follow the instructions.
v If you are collecting the package by using the service assistant, ensure that the
node that you want to collect logs from is the current node. Select the Collect
Logs option from the navigation. You can collect a support package or copy an
individual file from the node canister. Follow the instructions to collect the
information.
Use this procedure to perform a node rescue.
A failure has indicated that the node software is damaged and must be reinstalled.
Use the service assistant to reinstall the software.
1. Ensure that the node you want to reinstall the software on is the current node.
Go to "Accessing the service assistant" on page 32.
2. Select Reinstall Software from the navigation.
3. Select Rescue from another node.
The procedures that are provided here help you solve problems on the Storwize
V7000 system and its connection to the storage area network (SAN).
SAN failures might cause Storwize V7000 drives to be inaccessible to host systems.
Failures can be caused by SAN configuration changes or by hardware failures in
SAN components.
The following list identifies some of the hardware that might cause failures:
v Power, fan, or cooling switch
v Application-specific integrated circuits
v Installed small form-factor pluggable (SFP) transceiver
v Fiber-optic cables
Perform the following steps if you were sent here from the error codes:
1. Verify that the power is turned on to all switches and storage controllers that
the Storwize V7000 system uses, and that they are not reporting any hardware
failures. If problems are found, resolve those problems before proceeding
further.
2. Verify that the Fibre Channel cables that connect the systems to the switches
are securely connected.
3. If you have a SAN management tool, use that tool to view the SAN topology
and isolate the failing component.