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™ Backup Planning and Performance Tuning Guide
  3. Tuning other NetBackup components
  4. How to improve NetBackup resource allocation
  5. Disabling on-demand unloads
NetBackup™ Backup Planning and Performance Tuning Guide

Disabling on-demand unloads

The NetBackup EMM service may ask the resource broker (nbrb) to unload drives even though the media unload delay has not expired. This request is called an on-demand unload. If allocating resources for a request is not possible without unloading the drive, EMM may ask nbrb to unload the drive.

It may be helpful to disable on-demand unloads when a series of small related backup jobs are scheduled (such as multiple NetBackup database agent jobs).

To disable on-demand unloads

  • Create the following file:

    On UNIX

    /usr/openv/netbackup/db/config/RB_DISABLE_REAL_UNLOADS_ON_DEMAND

    On Windows

    install_path\Veritas\NetBackup\db\config\RB_DISABLE_REAL_UNLOADS_ON
    _DEMAND

Feedback

Was this page helpful?
Previous

Disabling the sharing of NetBackup reservations

Next

Encryption and NetBackup performance

Feedback

Was this page helpful?