When To Run The Recover System Procedure - IBM Storwize V7000 Unified Problem Determination Manual

Contact IBM Remote Technical support if the health indicator in the management
GUI does not turn back to green within 30 minutes. They can assist you with
recovering the file modules so that access to the file systems can be restored.
After you perform the storage system recovery procedure, contact IBM support.
They can assist you with recovering the file modules so that access to the file
systems can be restored.
Attention: Perform service actions only when directed by the fix procedures. If
used inappropriately, service actions can cause loss of access to data or even data
loss. Before attempting to recover a storage system, investigate the cause of the
failure and attempt to resolve those issues by using other fix procedures. Read and
understand all of the instructions before performing any action.
Attention: Do not attempt the recovery procedure unless the following conditions
are met:
v All hardware errors are fixed.
v All node canisters have candidate status.
v All node canisters must be at the same level of code that the storage system had
The system recovery procedure is one of several tasks that must be performed. The
following list is an overview of the tasks and the order in which they must be
performed:
1. Preparing for system recovery
2. Performing the system recovery. After you prepared the system for recovery
3. Performing actions to get your environment operational

When to run the recover system procedure

A recover procedure must be attempted only after a complete and thorough
investigation of the cause of the system failure. Attempt to resolve those issues by
using other service procedures.
Attention: If you experience failures at any time while you are running the
recover system procedure, call the IBM Support Center. Do not attempt to do
further recovery actions because these actions might prevent IBM Support from
restoring the system to an operational status.
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Storwize V7000 Unified: Problem Determination Guide Version
before the system failure. If any node canisters were modified or replaced, use
the service assistant to verify the levels of code, and where necessary, to upgrade
or downgrade the level of code.
a. Review the information regarding when to run the recover system
procedure
b. Fix your hardware errors
c. Remove the system information for node canisters with error code 550 or
error code 578 by using the service assistant.
and met all the pre-conditions, run the system recovery.
Note: Run the procedure on one system in a fabric at a time. Do not perform
the procedure on different node canisters in the same system. This restriction
also applies to remote systems.
v Recovering from offline VDisks (volumes) by using the CLI
v Checking your system, for example, to ensure that all mapped volumes can
access the host.