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Add_workflow_for_techpubs
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Complete the following tasks prior to starting the software upgrade. 

Note
titleCaution

No Do not make system configuration changes should be made during an upgrade. If such a change is made, this change is System configuration changes made are not included in the new software release , and , therefore, the system may not behave as expected.

Before you start the software upgrade, it is assumed that you have completed the following tasks:

.


Warning
titleWarning

Upgrading from more than 2 previous major releases is not supported. For example, the minimum requirement to upgrade to DSC 21.0 is DSC 18.0.

For information on the supported upgrade paths, refer to the Release Information for the release you want to upgrade to.

Prerequisites

  • This procedure assumes you are upgrading from a 18.x.y release or later. If upgrading from a 3.x.y release, refer to the Release 18.1 Upgrade Documentation for more information. 

Workflow

StepActionProcedure
1Perform a backup through the

...

Web UI and stored it in a local

...

directory.Back Up the System Before the Software Upgrade
2

Run the pre-upgrade check script and resolve any issues that might occur during the pre-upgrade process

...

.

Info
titleNote

If you have more than one issue that has to be resolved before you can start the software upgrade, find a resolution to each failed pre-upgrade check in the order these checks were presented. When all issues are resolved, execute the pre-upgrade check procedure

...

again.


Execute the Pre-Upgrade Check
3Log

...

Are familiar with using the 

Spacevars
0series5
Menu-based user interface (Menu UI)

...

onto the system as the root user

...

Info
titleNote

If you require help using the Menu UI or logging onto the system, refer to the appropriate sections in the Web UI and Menu UI Guide and the DSC - SP2000 Platform Manager User Guide.

and review the status for the various system functions.Verify and Record System Status
4Verify your system and SS7 networking are properly configured prior to the upgrade.Verify the Network Provisioning
5

Note Current Alarms

Confirm Alarms on System

...

Info

If updating from a 18.x.y release, proceed directly to Planning the Maintenance Window.

If you are upgrading from a 3.x.y release, refer to the Release 18.1 Upgrade Documentation for more information. 

...