Perform with WORM
No deleting, overwriting and changing of your important data. Calm blood with Trojans, viruses, ransomware and cyber attacks: Rely on WORM
How to keep your data in top shape with WORM on LTO and Storage
Due to the integrated overwrite protection, your data is secured and preserved for a long time.
Even the good old floppy disk had a built-in slider that turned the rewritable medium into a read-only medium. A light sensor checked whether the corresponding window was open and set the floppy disk to “read only” if it was activated. WORM technology goes one step further in the direction of “Immutable Backups”.
The term stands for Write Once Read Multiple and thus describes the main difference to the floppy: Although existing data cannot be changed or deleted, data can still be stored on the medium.
Play it safe with WORM on removable media RDX and LTO
With our products, it has always been the removable media – for example LTO tapes from Fujifilm – that have been able to realize such protection via hardware WORM. This makes overwriting simply impossible and a WORM archive can be quickly built up that even withstands GDPR guidelines.
LTO WORM tapes
Similarly, LTO WORM cartridges also protect against cyber-attacks – and have done so for several LTO generations. For this purpose, they are already described with a unique format by factory. An LTO drive, however, which already has the technology integrated into its firmware, automatically recognizes WORM media that have been inserted. So also here the cooperation with backup software is possible without any problems. We would like to highlight our FreeNAS systems with built-in LTO drive. Via backup software Archiware P5 can be used to conveniently store backups on WORM tapes.
Our storage systems with WORM options
Our storage products also come with WORM options out of the box, or our technicians can integrate them successfully.
Infortrend in WORM trend
Infortrend can shine with WORM functionalities in two product families. In both the EonStor GS family and the CS series, secure write-once protection can be enabled for file-based volumes. As soon as the system writes to such volumes, it immediately declares the data as “write-protected”. They cannot be changed, deleted or overwritten afterwards. Security also dictates that once protection has been applied to a disk pool, it cannot be deactivated again.
Update: Open-E JovianVHR creates a VEEAM® WORM repository
In 2025, Open-E launched JovianVHR, a storage solution specifically designed for secure backup infrastructures. Together with Veeam® Backup & Replication, it provides a powerful—and immutable—storage bulwark. The software protects backup data from ransomware, tampering, and accidental deletion through multi-level immutability mechanisms based on XFS and OpenZFS. JovianVHR is used to build a so-called “hardened repository”—that is, a highly secure backup destination for enterprises and data centers.

