IT Forensics · Linux
Forensic analysis of ZFS on Linux – evaluating pool structures and integrity mechanisms
ZFS combines file system and volume management within a single architecture and is used on Linux, in particular via ZFS on Linux or OpenZFS, often on NAS systems and Servern devices with high integrity requirements. Pools, datasets and Vdevs form the core structure.
ZFS utilises end-to-end checksumming and copy-on-write, which means that silent data errors can generally be detected. Furthermore, existing ZFS snapshots and the pool configuration are of key importance for forensic analysis.
Why LanCologne?
Since its foundation, LanCologne has specialised in professional IT forensics. Our staff have decades of experience in the field of information technology and assist companies, solicitors, private individuals and, on a regular basis, the courts in the technical investigation of complex digital matters.
The examination is, as a matter of principle, carried out exclusively on a forensic copy, a forensic image or a data source captured in a technically equivalent manner that preserves the integrity of the evidence. The original evidence remains unchanged and is stored in a manner that preserves its integrity.
Our services
We analyse ZFS pool and dataset structures, checksum information and existing snapshots, and relate the findings to the actual system and usage context.
Typical areas of application
This is how a ZFS forensic investigation is carried out
Once the backup has been completed, the pool and dataset structure, including the Vdev configuration, is first determined. Existing snapshots are identified and chronologically ordered. Relevant datasets are then analysed and correlated with other system artefacts, using checksum information to verify their plausibility.
Why is ZFS analysis relevant in a forensic context?
ZFS is frequently used in environments with particularly high data integrity requirements, such as in business-critical storage systems. A proper analysis of the pool structure is essential for drawing reliable forensic conclusions.
The built-in snapshot feature can preserve additional historical data states that would already have been lost in traditional file systems. This capability is specifically assessed in every ZFS analysis.
Frequently Asked Questions
LanCologne – Linux Forensics Cologne
Do you require a professional forensic investigation into „forensic analysis of ZFS on Linux"? LanCologne can assist you with the legally admissible preservation of digital evidence and the traceable analysis of relevant Linux artefacts.
Related to this topic
- Forensic analysis of ZFS snapshots – Reconstructing previous datasets in a traceable manner
- Forensic analysis of LVM – Correctly classifying logical volumes
- Forensic analysis of LVM snapshots – Evaluating historical volume states
- Forensic analysis of software RAID (mdadm) – correctly reconstructing arrays