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Backup Storage · Offsite Data Protection

Backup Storage Services for Data You Can't Lose.

Store secondary copies of your servers, virtual machines, databases and applications in HostGraber's Kolkata data center. Scalable offsite backup storage with flexible retention, encryption and multiple recovery points, ready to plug into your DR plan.

Offsite Backup Secondary copies kept away from your primary environment.
Scalable Capacity From under 1 TB to 100 TB+, expanded as your data grows.
Flexible Retention Keep restore points from 7 days to 1 year, or custom.
Encrypted & Immutable Data encryption with immutable backup options against ransomware.
Server, VM & Database Backup Incremental Backups Multiple Recovery Points DR Ready
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What is backup storage

A Safe Second Copy of Everything That Matters

Backup storage is dedicated capacity for keeping secondary copies of your business data, servers, databases and applications, separate from the systems they protect.

When a disk fails, a file is deleted or ransomware strikes, you restore from a clean copy instead of starting over. Keeping that copy offsite, in a different location from production, means a single incident cannot take out both.

How offsite backup storage worksServers, virtual machines, databases and files are backed up to encrypted backup storage at HostGraber DC-01 in Kolkata, and restored from there when needed.ENCRYPTEDBACKUPRESTORE WHEN NEEDEDServersVirtual machinesDatabasesFiles & NASBackup storageHostGraber DC-01, KolkataRetention · immutable
Illustrative. Your backup design is built around your data, retention and recovery needs.
Backup storage options

Storage Designed Around Your Backup Strategy

Choose the storage model that fits your data, your backup software and how you need to restore.

Object Storage

Scalable storage for backup data and archives, accessed by compatible backup tools.

NAS Backup Storage

Network-attached storage for file-level backups and shared backup targets.

Dedicated Backup Storage

Storage capacity reserved for your backups, sized to your data and retention.

Offsite Backup

Copies kept in HostGraber's Kolkata data center, away from your primary site.

Immutable Backup Options

Backups that cannot be changed or deleted during their retention period.

Custom Backup Repository

A backup target designed around your software, volumes and recovery needs.

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Built for data protection

Everything a Backup Needs to Be Restorable

A backup is only useful if it is complete, protected and ready to restore. These are the capabilities that make that true.

  • Scalable capacity

    Start below 1 TB and grow past 100 TB as your data grows.

  • Data encryption

    Protect backup data so a copy is useless to anyone without the keys.

  • Flexible retention

    Keep restore points for 7 days, 1 year or a custom period.

  • Incremental backups

    After the first full copy, only changed data is sent, saving time and bandwidth.

  • Multiple recovery points

    Restore from the point in time you need, not just the latest copy.

  • DR integration

    Use backup storage as the foundation of a wider disaster recovery plan.

Best practice

The 3-2-1 Backup Rule, Made Simple

The 3-2-1 rule is the most widely used guideline for protecting business data. Offsite backup storage is the part most businesses are missing.

3

Copies of your data

Your production data plus at least two backups.

2

Different storage types

Keep backups on separate storage, not the same disks as production.

1

Copy offsite

At least one copy in a different location, such as HostGraber's Kolkata data center.

Many teams now extend this to include an immutable copy that cannot be altered or deleted, which adds a strong layer of protection against ransomware.

Retention options

Keep Restore Points as Long as You Need

Retention decides how far back you can restore. Choose a period per workload, based on how quickly problems are usually noticed and any record-keeping requirements.

7 Days

Short-term recovery from accidental deletion or failed updates

30 Days

A common default for servers, applications and file data

90 Days

Catching issues discovered late, such as silent data corruption

180 Days

Longer history for business-critical databases and records

1 Year

Year-on-year history, audits and longer record-keeping

Custom

A retention policy designed around your own requirements

  • Backup types
  • File
  • Server
  • Virtual machine
  • Database
  • NAS
  • Object storage
  • Offsite
  • Custom
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Know the difference

Backup vs Sync vs Disaster Recovery

These terms are often used interchangeably, but they protect against different things. Most businesses need backup first, then DR for their most critical systems.

Backup storageFile syncDisaster recovery
PurposeKeep restorable copies of dataKeep files the same across devicesRestore whole services after an outage
Deleted or encrypted filesRestore an earlier versionChanges are copied everywhereRestored as part of recovery
Version historyMultiple recovery pointsLimited or noneBased on replication and RPO
Compute to run servicesNot includedNot includedStandby compute included
Best forEvery businessCollaborationBusiness-critical systems

Need more than backup? Explore disaster recovery services →

Use cases

Backup Storage for Every Critical Workload

  1. 01

    Enterprise servers

    Protect file, application and infrastructure servers with offsite copies.

  2. 02

    Hosting providers

    Secondary storage for customer sites, VPS and hosting platforms.

  3. 03

    SaaS platforms

    Point-in-time copies of application data and customer databases.

  4. 04

    Database systems

    Regular backups with multiple recovery points for transactional data.

  5. 05

    Virtual infrastructure

    VM backups for virtualized and private cloud environments.

  6. 06

    Financial services

    Longer retention for records that must be kept and restorable.

  7. 07

    Healthcare

    Protected, encrypted copies of sensitive operational data.

  8. 08

    Manufacturing

    Backups for ERP, production systems and engineering files.

Getting started

From Data Assessment to Verified Restores

  1. 01ASSESS

    Assess your data

    We review data volume, sources, growth and how fast you need to restore.

  2. 02PLAN

    Choose storage and retention

    Select the storage model, capacity and retention for each workload.

  3. 03CONFIGURE

    Set up backup jobs

    Connect your backup software to the storage target and schedule jobs.

  4. 04PROTECT

    First full backup

    The initial copy is taken, then incremental backups keep it current.

  5. 05VERIFY

    Test restores

    Restore samples regularly to confirm backups are complete and usable.

Start Your Backup Plan
Backup storage guide

Offsite Backup Storage, Explained

A practical guide to protecting business data: where backups should live, how backup types differ, how long to keep them and how to make sure they will actually restore.

Onsite vs offsite backup

An onsite backup sits in the same building as the systems it protects. It is fast to restore from, but fire, flood, theft, power problems or ransomware that spreads across your network can affect both production and backup at the same time.

An offsite backup is stored in a different location. It takes longer to copy data out the first time, but it is the copy that survives when the primary site cannot. Most businesses keep a local copy for quick restores and an offsite copy for protection, which is exactly what the 3-2-1 rule recommends.

Full, incremental and differential backups

Backup software usually combines three backup types. The right mix balances backup time, storage use and how quickly you can restore.

FullIncrementalDifferential
What is copiedEverythingChanges since the last backupChanges since the last full backup
Backup timeLongestShortestGrows over time
Storage usedHighestLowestMedium
Restore needsOne backupFull plus each incrementalFull plus latest differential

How to choose a retention period

Retention should match how long it takes to notice a problem. Accidental deletions are usually spotted within days, but data corruption or a quiet ransomware infection can go unnoticed for weeks. If your retention is shorter than that, every restore point may already be affected.

Longer retention needs more storage, so set it per workload. Critical databases and financial records often justify 90 days or more, while short-lived or easily rebuilt data may need far less. Also check any record-keeping obligations that apply to your industry.

What is immutable backup, and why it matters for ransomware

An immutable backup cannot be changed or deleted until its retention period ends, even by an administrator account. Modern ransomware often targets backups first, so an attacker with admin access can wipe ordinary backup copies before encrypting production.

Immutability removes that option. Combined with offsite storage and encryption, it gives you a clean restore point when everything else has been compromised.

Why you should test restores

A backup job that reports success is not the same as a backup you can restore. Credentials expire, software changes and jobs silently skip files. Restoring sample files, databases or full machines on a regular schedule is the only way to know your backups work, and how long a real restore will take.

Offsite backup storage in Kolkata

If your production systems run in your office, in a public cloud or in another Indian city, HostGraber DC-01 in New Town, Kolkata gives your backups a separate, professionally managed home, with your team able to reach the hardware when needed.

Backup storage at HostGraber can be combined with disaster recovery, cross connects and private networking, so backup traffic and recovery are planned together.

Glossary

Backup Storage Terms, in Plain Language

Backup storage
Dedicated capacity for keeping secondary copies of data, servers and applications.
Offsite backup
A backup stored in a different location from the systems it protects.
Retention period
How long backup copies are kept before they are removed.
Recovery point
A specific point in time you can restore data back to.
Full backup
A complete copy of all selected data.
Incremental backup
A copy of only the data that changed since the previous backup.
Differential backup
A copy of all data changed since the last full backup.
Immutable backup
A backup that cannot be modified or deleted until its retention period ends.
Object storage
Storage that keeps data as objects, well suited to large backup sets and archives.
3-2-1 rule
Keep three copies of data, on two types of storage, with one copy offsite.
Frequently asked questions

Backup Storage Questions Answered

Have a question about capacity, retention or setup? Send it with your requirement and our team will reply.

Send Your Query
What is backup storage?

Backup storage provides dedicated capacity for storing secondary copies of business data, servers, databases and application workloads, separate from the systems they protect.

What is offsite backup?

Offsite backup means keeping a copy of your data in a different location from your primary systems, so a single incident such as fire, theft or ransomware cannot affect both.

What is the 3-2-1 backup rule?

Keep three copies of your data, on two different types of storage, with at least one copy offsite. Offsite backup storage covers the "one offsite" part of the rule.

Can I increase storage later?

Yes. Backup storage capacity can be expanded as your data grows.

Can virtual machines be backed up?

Yes. Virtual machine backup can be planned depending on your virtualization platform and backup software.

Do you support long-term retention?

Yes. Retention options include 7 days, 30 days, 90 days, 180 days and 1 year, and custom retention can be designed around your requirements.

What is immutable backup?

An immutable backup cannot be modified or deleted during its retention period. It protects your restore points from accidental deletion and from ransomware that targets backups.

What is the difference between incremental and full backups?

A full backup copies all selected data. An incremental backup copies only what changed since the previous backup, which is faster and uses less storage.

Is backup storage the same as disaster recovery?

No. Backup storage keeps restorable copies of data. Disaster recovery adds standby compute, network failover and documented procedures to restore whole services. Backup storage can integrate with a disaster recovery plan.

How do I get a backup storage quote?

Fill in the quote form with your backup size, backup type, retention requirement and current environment. Our team will size the storage and send you a quote.

Backup storage · Kolkata

Protect Your Data Before You Need It.

Tell us how much data you need to protect and for how long. Our team will size the storage and send you a quote.

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