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With UnderHost's cold storage backup, your data is protected from cyber threats, hardware failures, and accidental deletions. Secure your business-critical information today.
Get Started NowWe also offer online backup solutions with plans up to 20TB. Whether you need cold storage or online backups, we have the right solution for your business.
Explore Online Backup PlansYour data remains completely air-gapped, safe from online threats like ransomware and cyberattacks.
Each customer has their own private drive stored securely in our vault.
Data is locked in a physically protected safe within our office, monitored 24/7.
Retrieve data only when needed through our secure manual process.
Ideal use cases for cold storage
Need ultra-secure, offline backup storage? Get started with UnderHost Cold Storage today!
Use these commands during your monthly update window
rsync -avz --delete /local/data/ user@staging.underhost.com:/coldstorage/
Run before the 1st to update your vault data
sftp user@staging.underhost.com # Upload files for monthly vault transfer
Upload data to staging before vault transfer
Cold storage is fully offline. To retrieve your data, submit a support ticket and our team will physically mount your drive for access.
REQUEST DRIVE ACCESSEverything you get with cold storage backup
All cold storage plans include
Please note these limitations
Powered by WD Black 7200RPM CMR drives delivering up to 267MB/s transfer speeds, your data is stored on high-performance, enterprise-grade hardware.
Our team is available around the clock to assist you with cold storage setup, data transfers, and recovery.
On the 1st of each month, we transfer a duplicate copy to your dedicated HDD drive in our vault.
Fireproof, waterproof safe with biometric access and 24/7 surveillance.
Need your HDD drive shipped? We offer secure worldwide delivery.
For uploading to your staging server before vault transfer
Transfer files securely using FTP (File Transfer Protocol) and SFTP (Secure File Transfer Protocol) for encrypted data transfers.
Access your data securely with SSH (Secure Shell) and use SCP (Secure Copy) for encrypted file transfers.
Efficiently synchronize only changed files, saving up to 98% of bandwidth by transferring only the modified data.
Mount your backup space as if it were a second hard drive, making file access seamless and intuitive.
Store old versions of files in a special subfolder, ensuring you can recover previous iterations of your data.
Create encrypted tar-format volumes and record only the parts of files that have changed, saving space and time.
Use hard links to keep multiple full backups while using minimal additional storage space.
Collaboratively edit and manage files on remote web servers with WebDAV support.
Each customer gets their own private HDD drive stored securely in our vault.
Your data is backed up to our servers and transferred to cold storage on the 1st of each month.
Need your data? Simply open a support ticket, and we'll mount your drive for retrieval.
At UnderHost, we specialize in creating secure, offline cold storage backup solutions tailored to your business needs. Whether you need long-term archival storage or protection for sensitive data, we've got you covered. Cold storage is ideal for businesses that need ultra-secure, offline data protection.
GET A CUSTOM QUOTEUnderHost offers enterprise-grade, offline cold storage backup with dedicated WD Blacks, vault security, and 24/7 support. Your data is completely air-gapped and protected from cyber threats, ransomware, and accidental deletions.
Everything you need to know about Cold Storage Backup
Cold storage backup is an offline data storage solution where your data is stored on a dedicated physical drive, completely isolated from online threats. It's ideal for long-term archival and sensitive data protection.
Your data is first backed up to our secure servers. On the 1st of each month, a duplicate copy is transferred to your dedicated HDD drive, which is then stored offline in our vault. Access is available on-demand via a support ticket.
Simply open a support ticket, and our team will physically mount your drive to provide access. This ensures your data remains secure and offline until you need it.
The cost of the HDD drive and shipping depends on your location and the drive's capacity. Contact our sales team for a detailed quote tailored to your needs.
Yes, your data is stored on a dedicated HDD drive in a fireproof, waterproof safe within our office. The vault is monitored 24/7 with biometric access and surveillance.
Yes, you can upgrade your storage capacity at any time. Contact our support team to discuss your requirements and we'll assist you with the upgrade process.
We support FTP, SFTP, SSH, SCP, RSYNC, Samba, rdiff-backup, duplicity, rsnapshot, and WebDAV for secure and efficient data transfers to your staging server.
Your data is updated once a month, on the 1st, unless otherwise specified. This ensures a consistent and secure backup process.
We use high-quality WD Black drives for reliability. In the rare event of a failure, we'll replace the drive at no additional cost and restore your data from the latest backup.
Yes, we offer secure worldwide shipping for your dedicated HDD drive. Contact us for shipping costs and delivery times.









































