DPX 4.12 Guide
  • Welcome to DPX!
  • Introduction
    • About DPX
  • Installation and Configuration
    • How to Start – Basic Configuration
      • Protocols Used for Backup and Restore Data Transfer
    • DPX Master Server
      • Deploying DPX with VMware vSphere
        • Auxiliary Tasks for VMware Deployment
      • Deploying DPX with Microsoft Hyper-V
        • Auxiliary Tasks for Hyper-V Deployment
      • DPX Master Server Interface
      • Connecting to DPX Master Server via SSH
      • Configuration
    • DPX Client
      • DPX Client for Microsoft Windows
        • Requirements
        • Installation
        • How to Uninstall
      • DPX Client for Linux
        • Requirements
        • Installation
        • How to Uninstall
      • Automated Deployment of DPX Client
      • Further Actions with DPX Client
    • DPX Proxy Server
      • Deploying DPX Proxy Server for VMware
      • DPX Proxy Server Web Interface
    • DPX Hyper-V Agent
    • Nodes
      • Adding a Client Node to the Master Server during Client Deployment
      • Adding a Client Node from the Master Server Level
      • Adding a vStor Storage Node
      • Adding a Configured Hyper-V Host as a DPX Node
      • Adding an S3 Object Storage Node
      • Adding Other Node Types to the Master Server
      • Adding a Node Group
    • Devices
      • Adding a Device Cluster
      • Adding a Device
      • Adding a Tape Library
      • Adding a Tape Library Device
    • Media
      • Adding a Media Pool
      • Adding Media Volumes
    • Tape Libraries
      • Tape Library Deployment
      • Tape Library Setup
      • Manual Tape Library Installation
      • Tape Library Verification
      • Manual Tape Library Configuration
      • Setting up LTO Tape Drives for Hardware Encryption
        • Assigning and Unassigning Media to/from Tape Library Slots
    • User Configuration
      • Configure Administrators Window
    • Other Components of the DPX Suite
  • Storage
    • Backup Destinations
    • Tape Storage
    • vStor
    • Disk Directory
    • NetApp
      • NetApp SnapVault Management
        • Terminology for NetApp SnapVault Management
        • NetApp SnapVault Management Setup and Configuration
    • Cloud Storage
      • Registering AWS S3 Cloud Storage
      • Registering a Generic Cloud Storage
  • Backup
    • Introduction and Backup Types
    • File Backup
      • Creating a File Backup Job
        • Job Source Options for File Backup
        • Job Destination Options for File Backup
        • Other Job Options for File Backup
      • Editing a File Backup Job
      • Scheduling a File Backup Job
    • Block Backup
      • Prerequisites
      • Creating a Block Backup Job
        • Job Options for Block Backup
      • Editing a Block Backup Job
      • Scheduling a Block Backup Job
      • Forcing a Base Backup
      • Backing up System State
      • Backing up System Table
      • NetApp SnapVault Management Backup
    • Application Backup
      • Microsoft SQL Server Backup
        • Creating a Microsoft SQL Server Backup Job
        • AlwaysOn Database Backup
      • Microsoft Exchange Server Backup
        • Creating a Microsoft Exchange Server Backup Job
      • Microsoft SharePoint Server Backup
        • SharePoint Installation and Configuration Requirements
        • Creating a Microsoft SharePoint Server Backup Job
      • SAP HANA Backup
      • Oracle Database Backup
        • Enabling Block Backup for Oracle Databases
        • Creating an Oracle Database Backup Job
          • RMAN Cataloging Control
      • OpenText GroupWise Backup
        • Creating a GroupWise Backup Job
    • Bare Metal Recovery (BMR) Backup
      • Creating a BMR Backup Job
    • Catalog Backup
      • General Considerations
      • Creating a Catalog Backup Job
        • Job Options for Catalog Backup
      • Editing a Catalog Backup Job
      • Scheduling a Catalog Backup Job
    • NDMP Backup (desktop interface only)
      • Prerequisites
      • Creating an NDMP Backup Job
        • Job Source Options for NDMP Backup
        • Job Destination Options for NDMP Backup
        • Other Job Options for NDMP Backup
      • Editing an NDMP Backup Job
      • Scheduling an NDMP Backup Job
    • Image Backup (desktop interface only)
      • Creating an Image Backup Job
      • Editing an Image Backup Job
      • Scheduling an Image Backup Job
    • Agentless Backup for VMware and Hyper-V
      • Agentless Backup for VMware
        • Agentless Backup for VMware Complements Block Data Protection
        • Agentless VMware Backup Architecture and Data Flow
        • Environmental Requirements for Agentless VMware Backup
        • Best Practices for Agentless VMware Backup
        • Creating an Agentless VMware Backup Job
          • Job Source Options for Agentless VMware Backup
          • Other Job Options for Agentless VMware Backup
        • Editing an Agentless VMware Backup Job
        • Scheduling a VMware Backup Job
        • Application-Consistent Protection
        • Architecture and Data Flow
      • Agentless Backup for Microsoft Hyper-V
        • Creating a Hyper-V Backup Job
        • Editing a Hyper-V Backup Job
        • Scheduling a Hyper-V Backup Job
    • 🆕S3 Object Storage Backup
      • Creating an S3 Object Storage Backup
      • Scheduling an S3 Object Storage Backup Job
    • Differential and Incremental Backups
    • Archive
      • Creating an Archive Job for Block Backup
      • Creating an Agentless VMware Archive Job
  • Restore
    • Introduction and Restore Modes
    • Restore Modes in the Web Interface
      • Full VM Restore for VMware
      • Full VM Restore for Hyper-V
      • Instant VM Restore
      • Multi-VM Restore
        • Job Options for Multi-VM Restore
        • Advanced Filters
      • 🆕S3 Object Storage Restore
      • Agentless File Restore
      • File Restore from Block Backup
        • Advanced Job Options
      • Instant Access
      • Virtualization
      • Application Restore
        • Microsoft SQL Server Restore
        • Microsoft Exchange Server Restore
        • Microsoft SharePoint Server Restore
        • Oracle Database Restore
        • OpenText GroupWise Restore
      • File Restore from File Backup
        • Job Options for File Restore from File Backup
    • Restore Modes in the Desktop Interface
      • File Restore
        • Creating a File Restore Job
      • Image Restore
        • Creating an Image Restore Job
      • NDMP Restore
        • Creating an NDMP Restore Job
      • Block Restore
        • Creating a Block Restore Job
          • Block Restore Job Options
        • Specifying Mount Points
        • Restoring Block Data with Instant Access
        • Restoring BMR Data with Virtualization
        • NetApp SnapVault Management Restore
      • Agentless VMware Restore
        • Creating an Agentless VMware Restore Job
          • Agentless VMware Restore Job Operations
        • Rapid Return to Production (RRP)
      • Tape Restore
        • Creating a Tape Restore Job
      • Application Restore
      • Scheduling a Restore Job in the Desktop Interface
        • Previewing Scheduled Jobs in the Desktop Interface
      • Restore Job Source Options
    • Catalog Restore
      • Creating a Catalog Restore Job
    • Bare Metal Recovery (BMR) Restore
    • Recovering Archived Backups
      • Recovering a VMware Archive
  • Web Interface
    • Log-in Page
    • Dashboard
    • Job Monitor
    • Job Manager
    • Schedule Overview
    • Reports
      • Reports Templates
    • Nodes
    • Devices & Pools
    • Events
    • Configuring Enterprise Information
    • Configuring Custom SSL Certificates
  • Desktop Interface
    • Connect to DPX Window
    • Main Window
    • Common Menu Bar Options
    • Function Tabs Desktop Interface
      • Backup Tab
      • Restore Tab
      • Monitor Jobs Tab
      • Control Devices Tab
      • Reports Tab
      • Catalog Tab
      • Copy Tab
      • Manage Tapes Tab
      • Configure Tab
      • [Legacy] Analytics Tab
    • Common Function Window Tasks
    • Configuring Parameters
    • Configuring the Enterprises
      • Editing an Enterprise Configuration
      • Configuring Devices
  • BARE METAL RECOVERY
    • Bare Metal Recovery Overview
    • Bare Metal Recovery for Windows
    • Bare Metal Recovery for Linux
    • Recovery from a Replicated or Alternate Data Resource
  • MAINTENANCE
    • Condense
      • Starting a Condense Job
      • Scheduling a Condense Job (desktop interface only)
    • Job-Related Information
      • Job Return Codes
      • Job Status and Available Actions
    • Collecting Logs
    • Getting Node Information
    • File Exclusion Rules
    • Managing Licenses
    • Pre-Scripts and Post-Scripts
    • Updating DPX
      • Command Line Update
      • Online Autoupdate Method
      • Offline Autoupdate Method
  • Miscellaneous
    • Configuring Keyrings
      • Adding a Keyring
      • Adding a Key
    • SNMP Interface
    • Troubleshooting
      • Troubleshooting Unsuccessful Multi-VM Restore Cleanup
      • Troubleshooting Installation of the Catalogic DPX Client on UNIX and UNIX-like Systems
      • Managing the CMAgent Service
      • VMs Unable to Power On after Full or Instant VM Restore
    • Technical Support
    • Terminology
    • Acronyms
    • Default Ports
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On this page
  • General Considerations
  • Running the job with a new job name
  • Running the bexsnapmgr utility
  1. Backup
  2. Block Backup

Forcing a Base Backup

General Considerations

The first time you run a backup job, it will be a base backup. Subsequent runs are automatically incremental, and only changed blocks are backed up. A change journal on the client node tracks block-level changes.

In rare cases, such as disruption caused by a sudden power failure or virus, the change journal may stop or become inconsistent. The change journal then does not precisely track changed blocks. A repeatable backup failure may be evidence of damage to the change journal.

To recover from damage to a change journal, a base backup is required. That is, you must force a base backup. This forced base is sometimes referred to as a re-base.

A forced base is usually done in communication with a support analyst. However, it can be done by knowledgeable users. A base backup is forced in the following ways:

Running the job with a new job name

This method does not permit the selection of backup sources within the backup job. It forces a base backup of every source defined in the job. This method is practical only for jobs that are not backing up multiple sources that contain large amounts of data.

Running the bexsnapmgr utility

This is the preferred method and is described below. It enables the selection of backup sources requiring a base backup. The utility clears change journaling for the selected source. This forces a base backup of that source the next time the backup job is run. Note that this method is supported only for Windows clients. For other clients, contact Catalogic Software Data Protection Technical Support.

Take the following steps to force a base backup with bexsnapmgr:

  1. Examine the job log to identify sources that failed to be backed up.

  2. On the Windows client where the backup of a source failed, launch the DPX command prompt from the Windows Start menu:

    • For Windows earlier than 2008, click Start > All Programs > DPX > DPX Command Prompt.

    • For Windows 2008 and later, click Start > All Programs > DPX. Then right-click DPX Command Prompt. From the context menu, select Run as Administrator.

    The DPX command prompt appears.

  3. Enter bexsnapmgr. The user interface appears.

  1. Click Change Journal Configuration. The Change Journal Configuration window appears.

  2. Next to Disable, select from the pull-down list the affected backup source (node, drive, or volume). Click Disable. A message indicates that the source is disabled. At this point, you cannot run a backup of the disabled source. Repeat this step if there are additional sources to disable.

  3. Next to Enable, select from the pull-down list the same backup source disabled in the previous step. Click Enable. At this point, you can run a backup of the source. Repeat this step for any additional sources disabled in the previous step.

  4. Close the user interface.

Change journaling for the selected backup source or multiple sources, is now cleared. The next time a backup job using the source runs, the backup of the source is a base backup. Backups of all other sources defined in the job continue to run as incrementals.

Attention! Do not use other functions of the utility except under the direction of Catalogic Software Data Protection Technical Support.

PreviousScheduling a Block Backup JobNextBacking up System State

Disabling the change journal requires correct permissions. If attempting to disable the change journal displays an error, read the knowledge base article .

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