Contents

1   Backup and Restore Introduction

This instruction is a guide to perform backup and restore in the SAPC.

2   Backup and Restore Preconditions

The following conditions must be fulfilled:

• CBA components are installed.
• The SAPC product software has been installed and configured

3   Backup and Restore Overview

A backup consists of a snapshot of the system in the moment this operation is performed, called System Data backup.

For more information about backup and restore, refer to System Backup and Restore.

4   Backup and Restore Procedures

System Data backup is used to do a system data fallback to recover to a former version of the whole system with consistency.
After restoring a System Data backup, the SAPC reestablishes the following information:

• Software installed.
• Node configuration.
• Static Subscriber profile and provisioning information stored in the SAPC database.
• Dynamic Subscriber information (that is, usage accumulators) stored in the SAPC database.

• Sessions.
• Time Trigger events.

System Data backup consists of the following files:

Table 1    System Data Backup Paths and Files.

Path / File	Description
/cluster/brf/backup/<backup-name>/	Software installed Node configuration Static Subscriber information Dynamic Subscriber information

4.1   Create Backup

To perform the SAPC System Data backup, execute the following steps:

1. Verify that there is enough space in /cluster, following the procedure Check Disk Space described in Preventive Maintenance.
2. Access to the SAPC, using ECLI, according to System Administrator Guide.
3. Verify that the SAPC status is correct following the procedure described in Preventive Maintenance.
4. Follow the procedure explained in Create Backup, using BrmBackupManager=SYSTEM_DATA.
5. Check IMM Persistent Back End, following the procedure described in Preventive Maintenance.

Once the backup is completed, the operation has finished and the backup is ready. Check the operation result, following the procedure described in View Progress Report.

4.2   Restore Backup

To perform the SAPC System Data restore, execute the following steps:

1. Access to the SAPC, using ECLI, according to System Administrator Guide.
2. Verify that the SAPC status is correct following the procedure described in Preventive Maintenance.
3. In Geographical Redundancy, stop the data replication between zones, following the procedure explained in Temporarily Disable Active-Active Geographical Redundancy or Temporarily Disable Active-Standby Geographical Redundancy.
4. If the SAPC version of the backup to be restored is earlier than SAPC 1.3 when upgrading it to SAPC 1.3 or later versions, perform this step. Otherwise, skip this step.

   Disable local authorization as recommended in the User Management to view the progress result in later step. The procedure in Lock Local Authorization Method provides further details on how to perform this operation. The reason is that local authorization is enabled by default in SAPC 1.3 or later versions.

5. Follow the procedure explained in Restore Backup, using BrmBackupManager=SYSTEM_DATA.
6. At this step, the SAPC is restarted automatically.
7. Wait until the system is operational again. Check the restore operation result, following the procedure described in View Progress Report, and check the SAPC Status following the procedure described in Preventive Maintenance.
8. Check IMM Persistent Back End, following the procedure described in Preventive Maintenance.

At this stage, the SAPC is ready to process traffic, and configuration and provisioning operations can be executed.

5   Backup and Restore Restrictions

The default disk capacity in Systems Controllers (SC) for VNF deployments permits to store up to five backups files in the local persistent storage media (this maximum depends on the specific provisioned data).

Extra capacity for backups storage can be configured, before the deployment, during the OVA creation. See the dimensioning guidelines to determine the needed size and the SAPC VNF Descriptor Generator Tool to configure it. Otherwise, to store more backup files, the recommended option is to use Export Backup operation to export backup files to an external storage system.

For PNF deployments, the maximum number of stored backups depends on the disk capacity of the system and the provisioning of the SAPC. See the dimensioning guidelines to determine the backups storage capacity. To store more backup files, follow the previous recommendation of exporting them to an external storage system