H06.18 Software Installation and Upgrade Guide

The procedure for falling back on the CLIM and loading the NonStop system on the previous RVU
is:
1. Before halting the processors:
a. Collect information about the CLIM environment.
b. Modify the OSSINFIL file.
2. Halt the processors.
3. While the processors are halted:
• If you are falling back to the H06.03 or H06.04 RVU, power cycle the processors.
• Prepare the CLIMs. Preparing the CLIMs involves configuring the interfaces that are used
for the dedicated service LAN as well as for the Maintenance Providers, configuring the
Storage CLIM for its role in the system, and configuring all the CLIMs with the system
information you gathered before halting the system.
4. Load the system.
5. Once the system is loaded, complete the CLIM setup. This step involves running a script that
establishes a secure relationship between the CLIMs and the system. In addition, you restore
more of the CLIM configurations by running a script that restores various aspects of the CLIM
configuration from the stored file.
6. Revert firmware if necessary.
7. Install specific OSS files if necessary.
8. Verify that the system is started.
Before Halting the Processors
(Optional) Prepare to Fall Back to Previous CLIM Firmware
If you will be falling back to previous CLIM firmware using the down system method, perform the
Prepare for Down System CLIM Firmware Update action in the OSM Service Connection. For more
information, see the Cluster I/O Protocols (CIP) Configuration and Management Manual.
Prepare to Fall Back to Previous CLIM Software
NOTE: If the system disk is a SAS disk, the SAS disk enclosures that contain the system disks
(both primary and mirror) must have LUNs assigned prior to a reimage and must not be power-cycled
during the reimage process.
Following are preparatory steps for downgrading to a previous version of the CLIM software.
1. Obtain the password for the root user ID on the CLIM.
2. Obtain a password for the super.super TACL user ID.
3. Obtain the DNS name of each CLIM iLO. The default name is system-climname-ILO, for example,
mysys-n100251–ILO.
4. Ensure you have the CLIM image with the desired RVU and matching HSS version either on
the NonStop console or on the CLIM DVD.
5. Ensure you have the matching HSS version for the RVU. See the NonStop Firmware Matrices
document, located in the Service Information section of the Support and Service collection of
the NonStop Technical Library at www.hp.com/go/nonstop-docs.
6. Determine if one or more of the CLIMs you are downgrading is being used for DNS and DHCP
services instead of the system consoles on your LAN by using the CLIM Boot Service
Configuration Wizard or DHCP DNS Configuration Wizard.
a. Determine the IP address of the CLIM(s) you are going to downgrade. Use the OSM
Service Connection to identify the Maintenance Interface IP Address for the CLIM.
134 Falling Back on the CLIMs, Loading the Previous RVU, and Resuming Normal Operations