J06.17 Software Installation and Upgrade Guide

Restoring the CLIMs assumes that you have saved the CLIM configurations by issuing the CLIMBKUP
command before upgrading your system, as described in “Back Up CLIM Configuration Files”
(page 49) and in the Cluster I/O Protocols (CIP) Configuration and Management Manual. Falling
back to previous versions of CLIM software adds approximately one hour for each CLIM to the
process of loading the system on the previous RVU.
NOTE: A CLIM configured with T0853H01^ACP or later can be restored from a
pre-T0853H01^ACP backup. However, a CLIM configured with a T0853H01^ACP DVD version
can only be restored with a backup of the same version. CLIMRSTR exists with errors if an
incompatible backup file is specified.
NOTE: When you fall back, you must restore CLIM configuration files saved from the same RVU
as the NonStop system RVU to which you are falling back.
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:
• Revert the server blade firmware, hard reset the system, and reimage the CLIMs.
• Prepare the CLIMs. Preparing the CLIMs involves configuring the interfaces that are used
for the dedicated service LAN and 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
If Falling Back to J06.14 or an Earlier RVU
Multiple Providers per CLIM functionality, which is first implemented with the J06.15 RVU, includes
allowing a single CLIM to be associated with multiple data providers if the MULTIPROV attribute
of the CLIM object is set to ON (enabled).
NOTE: If you have the J06.08 through J06.14 RVU and are not planning to migrate to J06.15
or a later RVU, you can implement full Multiple Providers per CLIM functionality by acquiring the
T0853H01^ACF SPR from Scout and installing it.
If you need to fall back from J06.15 or a later J-series RVU to J06.14 or an earlier RVU that does
not already have the T0853H01^ACF SPR installed, you must disable the MULTIPROV attribute to
instruct CLIMs to follow pre-Multiple Providers per CLIM behavior and use the sole provider specified
by the PROVIDER attribute. For details, see the Cluster I/O Protocols (CIP) Configuration and
Management Manual.
Before Halting the Processors 123