Question 1

How does air-gapped LTO archival work?

Accepted Answer

Your backups are first stored on an online disk (included), then automatically archived to LTO tape. The tapes are then placed in the datacenter's secure safe, physically disconnected from the network.

Question 2

What is the retention period for LTO tapes?

Accepted Answer

LTO tapes have a certified lifespan of at least 30 years. They are the ideal medium for regulatory archival (GDPR, NIS2) and long-term retention.

Question 3

Is the online disk included?

Accepted Answer

Yes, the AirGapped LTO PBS offer always includes an online disk for receiving backups and fast restores. The LTO archival in the DC safe is provided as a complement.

Question 4

What is the restore time from an air-gapped LTO tape?

Accepted Answer

Recent backups are available immediately from the online disk. For archives on LTO tapes in the safe, allow a few hours for retrieval and tape loading by our team.

Question 5

Why choose AirGapped LTO over Magnetic PBS?

Accepted Answer

AirGapped LTO places tapes in the datacenter safe (offline, anti-ransomware), while Magnetic PBS keeps tapes online and permanently accessible. AirGapped LTO offers better attack protection but with a longer restore time for archives.

Question 6

Can my backup be compromised by ransomware?

Accepted Answer

Air-gapped backups are by nature inaccessible to digital attacks while they are offline. With AirGapped LTO PBS, your LTO tapes in cold storage in the datacenter safe are physically unreachable. The online disk keeps recent snapshots for fast restore. Additionally, PBS snapshots allow you to restore from a point before the attack from the online disk.

Question 7

How is NimbusBackup managed?

Accepted Answer

RDEM Systems keeps your cloud PBS and LTO archival infrastructure operational 24/7. Our team handles planned maintenance, automatic LTO tape archival, datacenter safe storage, and emergency interventions — including tape retrieval and mounting for disaster recovery.

Question 8

Is my data encrypted?

Accepted Answer

Yes, all backups are encrypted with AES-256 client-side via proxmox-backup-client before transfer to disk and LTO tape archival. Tapes in cold storage are therefore unreadable without your encryption key.

Question 9

Where are my backups hosted?

Accepted Answer

The online disk is hosted in a European datacenter. Air-gapped LTO tapes are stored in the datacenter's secure safe, physically disconnected from the network. GDPR compliance guaranteed. French hosting available on request.

Question 10

Can I back up physical Linux servers?

Accepted Answer

Yes, proxmox-backup-client can be installed on any Linux server, not just Proxmox VE. You can back up your physical servers, VMs, and containers to your managed cloud PBS with air-gapped LTO archival.

AirGapped LTO PBS

Cloud PBS Air-Gapped with Tape Backup

Air-Gapped LTO

AES-256 Encryption

PBS Deduplication

FR Support

Air-Gapped Cloud PBS with LTO Tape Advantages

LTO in the DC Safe

Volume pricing:

Datacenter safe

Complete your infrastructure

Managed Proxmox VE

24/7 Server Management