Chapter 7. Recovery Procedures - IBM Storwize V7000 Unified Problem Determination Manual

Chapter 7. Recovery procedures

This section covers the recovery procedures for the file modules and control
enclosure.
User ID and system access
This section covers the recovery procedures for the topics that support the user ID
and system access.
Accessing a file module as root
Some procedures require that you log on to a file module as root.
About this task
You can use the following methods to access a file module as root.
Procedure
Access a file module as root.
v Type the following command in an X terminal, for example, a Windows or a
v Use a Windows application like PuTTY to ssh to port 1602 of a file module
Recovering from losing the root password
Some recovery procedures require the root password to be entered for the file
module.
Before you begin
If you have forgotten the file module root password, you can change it from any
file module user ID that has sufficient authority to run the chrootpwd command
successfully. If you do not have a user ID or if you have lost the password, then
use this procedure to recover. You must have physical access to the file module to
perform this procedure. Plug a keyboard and video monitor (KVM) directly into
the front of one of the file modules. Stall the boot sequence at the Linux Grub boot
loader screen.
About this task
To recover a lost root password, perform the following steps:
Procedure
1. Check that the system is in good health by using the management GUI. Fix any
2. Use the management GUI to identify the file module that is not the active
© Copyright IBM Corp. 2011, 2013
Linux operating system:
ssh -p 1602 root@<file module IP>
service IP and log in as root with the root password that you recorded in your
access information. See "Record the access information" on page 3.
hardware errors that do not require the root password.
management node and plug the KVM into that file module.
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