The backup that nothing can erase.
Voltn (formerly NetExplorer) writes a copy of your data to LTO magnetic tapes: unalterable, air-gapped, and stored in France. Once written, data cannot be modified or deleted.
Hosting in France or Luxembourg
Immutable LTO backup
Traditional backup is not enough
Traditional backups protect against hardware failure. They do not protect against ransomware that encrypts them, errors that overwrite them, or degradation over time.
Ransomware targets backups first.
Modern attacks encrypt or destroy online backups before targeting production systems. A network-connected copy is no longer a guarantee.
Increasing retention requirements.
Tax, HR, legal, and medical documents: retention periods are measured in years, sometimes decades. You also need to be able to prove that nothing has been altered.
Traditional media that ages poorly.
Disks and servers consume power continuously, fail, and become obsolete. Long-term storage on these media is expensive, both in terms of energy and migration costs.
One accidental deletion and it's all over.
Human error, misconfigured scripts, or malicious intent: when critical data disappears everywhere at once, the only thing left is the copy that cannot be touched.
The Voltn Vault promise
Burn your data onto LTO tapes
Once written, they cannot be modified or deleted.
Isolate an offline cold copy
Out of reach of ransomware.
Retain your data for up to 10 years
Within a 100% European infrastructure.
Keep your workflows unchanged
Backups work behind the scenes.
What makes a backup truly tamper-proof
Description
Once written, an LTO tape cannot be formatted or overwritten without physical intervention. Your data is protected against ransomware, accidental deletion, and tampering for the entire retention period.
Usage
Organizations exposed to cyber risks or subject to strict retention requirements.
Description
LTO tapes offer capacities from 6 TB (LTO-7) to 18 TB native (LTO-9, up to 45 TB compressed) and are designed to preserve data for 25 to 30 years under optimal conditions. A proven technology, favored by archiving professionals.
Usage
Large volumes to be kept for a long time: archives, long-term projects, documentary heritage.
Description
Your Vault space is dedicated and isolated, encrypted with a unique key generated when the option is activated. The entire chain is operated by Voltn in Europe, in certified data centers, beyond the reach of the Cloud Act.
Usage
Organizations that require total control over the location and confidentiality of their archives.
Key benefits
Immutability
Data that is etched in stone, impossible to modify or delete.
Resilience
Quadruple backup: 3 real-time copies and 1 cold copy on tape.
Efficiency
An off-network tape consumes zero energy.
Durability
Storage designed to last for decades.
Control
End-to-end chain operated in France, outside the scope of the Cloud Act.
Setting up your Vault
1. Scoping with an expert
A Voltn expert assesses your data volumes, retention periods, and backup policy.
2. Environment activation
Your dedicated space is deployed on Private Cloud infrastructure, with a unique encryption key generated for you.
3. Managed replication
Your data is replicated in real-time across 3 media in 2 separate data centers, plus a cold copy on isolated LTO tape.
4. On-demand restoration
When needed, archived data is restored to your Voltn space with the assistance of the Support team, within a timeframe determined by the volume.
Immutable backup by design
Regulated sectors
Banking, insurance, healthcare, public sector: regulated industries must retain their data for long periods and demonstrate its integrity during every audit. Voltn Vault provides immutable storage and a documented chain of custody.
Strategic operations
Mergers and acquisitions, fundraising, audits: these operations generate binding documents that must remain accessible and intact long after the transaction has closed.
Off-site archiving
HR, legal, accounting, or medical files: sensitive archives clutter servers and remain exposed. Voltn Vault offloads them to cold, sovereign, and encrypted storage, restorable on demand.
protected archives
Business continuity
When ransomware encrypts production data and online backups, the cold copy becomes your last line of defense. An offline, air-gapped tape cannot be reached by an attack.
Discover our extensions
Voltn Sign
Onboarding
Pricing
Voltn Vault
Available by quote, tailored to your volumes.
Immutable backup on LTO tapes
Customizable storage capacity, expandable in 100 GB increments
Redundancy across 2 sites and 3 media types, plus LTO cold storage
Unique encryption key generated upon activation
30-day retention for deleted data, restoration via Support
Contractual data reversibility
Otherwise, you could always print everything in triplicate.
FAQ
Can I retrieve my data if I leave Voltn?
Yes. Data portability is contractually guaranteed: in the event of termination, Voltn will return your archived data in a usable format, either via download or secure physical transfer.
Does Voltn Vault change the daily use of Voltn Workspace?
No. Your teams continue to work in Workspace as usual: tape replication happens in the background. This option requires the Voltn Private Cloud infrastructure to be enabled.
Can I increase my storage capacity?
Yes. Your storage volume is sized according to your initial needs and can be expanded at any time in 100 GB increments, with an adjusted monthly bill. Multi-company storage for groups or subsidiaries is also available.
How does tape restoration work?
Archived data is restored to your Voltn space with the assistance of our Support team, within a timeframe determined by the volume to be restored.
How long is my data kept on tape?
As long as the Vault option is active, your data remains archived for a maximum period of 10 years. The physical longevity of LTO media, which ranges from 25 to 30 years, provides a comfortable margin throughout the duration of the service.
How does Voltn Vault protect against ransomware?
The cold tape copy is stored offline: ransomware that compromises the information system cannot reach it. It serves as an intact restore point, complementing the 3 real-time copies hosted in our data centers.
Why use LTO tapes instead of hard drives?
LTO tape cannot be formatted or overwritten after the initial write, lasts 25 to 30 years under optimal conditions, and consumes no energy outside of read and write cycles. It is the gold standard for cold storage.
What is an immutable backup?
An immutable backup stores data in an unalterable state: once saved, it cannot be modified or deleted for a set period. It protects critical data against ransomware, accidental or malicious deletion, and tampering.
But let's be honest, our cloud-based file storage and sharing solution is just easier.