HP e3000 MPE/iX Release 7.0 System Software Maintenance Manual (30216-90317)

210 AppendixD

Backdating Your System

Planning Your Backdate

Planning can and should be done prior to performing your backdate. The backdate

requires downtime and planning it ensures that all the requirements are met. The sections

include:

• Determine Your Backdate Method

• Verify Your Requirements

• Compatibility Issues

• Patch Considerations

• Check Patch Tape Media

• Validate Your System Backup (Method 1)

• Check for Disk Space

Determine Your Backdate Method

There are essentially three methods for backdating your system software version level.

The methods are as follows:

• Method 1: Using a Customized System Load Tape. See

CSLT;CSLT:backdating>Customized System Load Tape (CSLT) together with the

Fundamental Operating System (FOS) and Purchasable Products (SUBSYS) tapes

from the earlier release.

The CSLT you use to backdate your system could have been created under many

different circumstance. For example:

— During a system update (with no patches)

— While installing patches from a PowerPatch tape

— While updating and installing patches from a PowerPatch tape

• Method 2: Using Factory System Load Tape (SLT) and Fundamental Operating System

(FOS) and Purchasable Products (SUBSYS) tapes from the earlier release.

• Method 3: Using a Factory Preload Tape (FPT). If your system was preinstalled at the

factory, you must backdate using the FPT.

The system software version level options are:

• Backdate from 7.0 to 6.0

• Backdate from 7.0 to 6.5

NOTE

Backdating from 7.0 to a release before 6.0 (General Release) is not

supported.

To determine which method is optimal for your system and your situation, call the