Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist
Cohesity

COHESITY Documentation

Explore our documentation to get started, discover products & new features, access troubleshooting guides, register sources, platforms support.

Products
Data Security Alliance
Visit Cohesity.com
Demos
Support
Blogs
Developers
Partner Portals
Cohesity Community
© 2026 Cohesity, Inc. All Rights Reserved.
Terms of Use|
Privacy Policy|
Legal|
  1. Home
  2. NetBackup™ for Microsoft Exchange Server Administrator's Guide
  3. Configuring Exchange Granular Recovery
  4. About Exchange backups and Granular Recovery Technology (GRT)
  5. Exchange granular clients and non-VMware backups
NetBackup™ for Microsoft Exchange Server Administrator's Guide

Exchange granular clients and non-VMware backups

With snapshot backups (non-VMware backups), Exchange granular clients are those clients that perform backup or restore operations with Granular Recovery Technology (GRT). These clients have specific requirements that must be met to allow restores of individual mailbox and public folders from full database backups.

Exchange granular clients

Exchange granular clients include the following:

  • All mailbox servers

  • Mailbox servers in an Exchange DAG

  • Mailbox servers in a clustered Exchange server

  • An off-host client

Requirements for any Exchange granular clients that are mailbox servers

Each Exchange granular client that is a mailbox server requires configuration of the following:

  • The NFS client. The NFS client must be installed. It also must have an unassigned drive letter for NetBackup to use to mount an NFS view of the backup image.

  • An account for NetBackup Exchange operations (unique mailbox for NetBackup). This account must have the right to "Replace a process level token."

  • The Exchange credentials in the Exchange client host properties. Use the credentials of the account for NetBackup Exchange operations.

    Alternatively you can add "Exchange Servers" to the "View-Only Organization Management" role group.

    See About the Exchange credentials in the client host properties.

  • Mappings for distributed application restores.

    For virtual environments you need to create a map of the virtual names and physical names of the systems in the Exchange configuration. This mapping applies to any NetBackup client that mounts the backup image or initiates a restore operation. Configure these mappings in the Distributed application restore mapping host property on the primary server.

    If you use a proxy server and it is not a media or a primary server, you also need to add the proxy server to this list.

    See Configuring mappings for restores of a distributed applications, clusters, or virtual machines .

  • Auto-discovered mappings for the hosts in your environment.

    Approve each valid auto-discovered papping that NetBackup discovers in your environment. Perform this configuration in the Security > Host mappings node in the NetBackup web UI.

    See Reviewing the auto-discovered mappings.

  • The clients must have the same version of Windows as the client from which the backup is made.

  • If you use an Exchange granular proxy server, the mailbox servers and the proxy host must also meet the following additional requirements:

    • Have the same NetBackup version

    • Use the same NetBackup primary server

    • Both use a Windows version that is supported for that version of Exchange

      See the Application/Database Agent Compatibility List for more information.

Requirements for a granular client that is an off-host client

An off-host client requires configuration of the following:

  • The off-host client must have the NFS client installed. It also must have an unassigned drive letter for NetBackup to use to mount an NFS view of the backup image.

  • Mapping of the primary client name and the off-host computer name.

    Perform this configuration in the Distributed application restore mapping in the primary server host properties.

    See Configuring mappings for restores of a distributed applications, clusters, or virtual machines .

  • The NetBackup client that performs the restore must have the same version of Windows as the off-host client from which the backup is made.

More Information

About configuring the account for NetBackup Exchange operations with the right to Replace a process level token

Feedback

Was this page helpful?
Previous

About mailbox discovery and Granular Recovery Technology (GRT)

Next

Exchange granular clients and VMware backups

Feedback

Was this page helpful?