Appliance Platform
The NetBackup appliances are Veritas-defined platforms of hardware, firmware and software. This includes driver revisions, OS levels and patches of all devices or software components. There are no modifications allowed without the express instructions of Veritas Technical Support. Modifications to the appliance in any fashion without express instructions from Veritas Technical Support will void warranty and result in an unsupported configuration.
Further information about our support policies can be found here:
Technical Support Solutions Handbook -
https://www.veritas.com/content/dam/support/terms/Technical-Support-Solutions-Handbook-en-US.pdf
Patches
Additionally, the only supported patches that may be applied to the NetBackup Appliances are the appliance-specific patches in the following link:
Veritas Downloads Page -
https://www.veritas.com/content/support/en_US/downloads
Applying NetBackup patches that are not specifically released for the appliance will result in a compromised and unsupported configuration.
Interoperability
NetBackup Appliance is based on Red Hat Enterprise Linux (RHEL). Unless otherwise noted, the appliance has the same compatibility with other agents, or products, as the underlying NetBackup products.
For example, a NetBackup 5250 5.1.1 Primary/Media Server appliance (based on 10.1.1) has the same compatibility with another NetBackup or Backup Exec host as a non-appliance 10.1.1 Primary/Media Server unless otherwise noted.
Primary/Media Server Compatibility
See the Release Notes of the applicable appliance software version for Primary/Media compatibility information. Search for the NetBackup Appliance Release Notes in the Veritas Appliance Documentation Sets - https://www.veritas.com/support/en_US/article.100040113
Hardware Compatibility
See the "NetBackup Appliances" and Drivers sections in the "Hardware and Cloud Storage Compatibility List (HCL)" for additional compatibility information, such as supported Tape Drives for the 52xx series and 53xx series.
The following article gives all possible Compatibility Details.
NetBackup Compatibility List for all Versions - https://www.veritas.com/content/support/en_US/article.100040093