Website & Hosting
VPS & Dedicated
Infrastructure
Marketplace
Gati Cloud
Resources
India
Global
Login
Disaster Recovery · Business Continuity

Disaster Recovery Services to Keep Your Business Running.

Protect business-critical systems with secondary infrastructure in HostGraber's Kolkata data center. Combine backup, replication, standby compute and failover planning into a recovery environment built around your RPO and RTO.

Backup & Replication Protected copies of critical data, replicated to recovery infrastructure.
Standby Infrastructure Compute capacity prepared to run recovery workloads when needed.
Failover Planning Network failover and documented recovery runbooks for key systems.
Defined RPO & RTO Recovery targets agreed upfront, then validated with DR testing.
Physical, VM & Hybrid Private Network & BGP Recovery Testing 24×7 Support
DR Proposal Request FREE ASSESSMENT

Plan Your Disaster Recovery

Tell us what you run today and how quickly you need to recover. Our infrastructure team will review it and propose a DR design.

Optional — details help us size the right recovery environment. 0 / 1500
Secure submission Infrastructure team review Custom DR design
What is disaster recovery

A Second Site Ready When the First One Fails

Disaster recovery (DR) is the practice of keeping secondary systems, data and infrastructure ready to restore operations after hardware failure, network outage, data corruption, ransomware or any event that takes production down.

A working DR setup is more than a backup. It combines protected copies of your data, compute that can run your workloads, a network path your users can reach, and a tested runbook that tells your team exactly what to do.

How disaster recovery worksData from your primary site is backed up and replicated to a recovery site at HostGraber DC-01 in Kolkata. Users reach the primary site in normal operation and fail over to the recovery site during an outage.BACKUP &REPLICATIONPrimary siteOffice, cloud or data centerApplications and dataRecovery siteHostGraber DC-01, KolkataStorage · compute · networkUsers & customersNORMALFAILOVER
Illustrative. Your DR design is built around your workloads, RPO and RTO.
Disaster recovery solutions

Every Layer of Recovery, Covered

Combine the building blocks your business needs, from protected backups to a fully standby recovery environment.

Backup & Recovery

Protected copies of critical application and business data, kept off your primary site.

Data Replication

Selected data replicated between your primary and recovery infrastructure.

Standby Infrastructure

Compute capacity prepared to run your recovery workloads when they are needed.

Network Failover

Alternate routing and network paths so users can reach services during recovery.

Application Recovery

Recovery workflows for selected business-critical applications, step by step.

Custom DR Architecture

A recovery environment designed around your specific infrastructure stack.

Get a DR Quote
Recovery objectives

RPO and RTO: Your Two Recovery Targets

Every DR design starts with two numbers your business agrees on. Together they decide how often data is copied, how much standby capacity you need and what the solution costs.

RPO

Recovery Point Objective

How much recent data you can afford to lose, measured back from the moment of disruption.

RTO

Recovery Time Objective

How quickly services must be running again after an outage begins.

RPO and RTO on a timelineRPO is the period between the last good copy of data and the disruption. RTO is the period between the disruption and services being restored.RPOdata at riskRTOtime to recoverLast good copyDisruptionServices restoredTime →
A shorter RPO means more frequent replication. A shorter RTO means more infrastructure kept ready on standby.
Backup vs disaster recovery

A Backup Saves Data. DR Restores the Business.

Backups are essential, but on their own they leave you rebuilding servers, networks and applications while the business waits.

CapabilityBackup onlyDisaster recovery
Data copyYesYes, backed up or replicated
Standby computeNo, servers must be rebuiltPrepared to run recovery workloads
Failover processManual and undefinedDocumented recovery procedure
Network recoveryNot coveredAlternate paths and routing planned
Recovery testingRarely testedRecovery drills validate readiness
Choose your recovery level

From Backup to a Full DR Environment

Match the level of protection to how critical each system is. Many businesses combine levels: full DR for core systems, backup for the rest.

Backup Only

Protected copies of data, restored onto rebuilt systems

Slowest, lowest cost

Backup + Replication

Backups plus data replicated to the recovery site

Less data loss, faster restore

Standby Infrastructure

Replicated data plus compute prepared to take over

Fast failover for key systems

Full DR Environment

Data, compute, network failover and tested runbooks

Fastest, most complete

Request a DR QuoteNot sure? Ask on WhatsApp
Why HostGraber for DR

Infrastructure and Expertise in One Place

A recovery site only works if compute, storage, network and people work together. HostGraber provides all of them from its Kolkata data center, with one team planning the design end to end.

Plan Disaster Recovery
  • Compute and recovery infrastructure
  • Backup and storage options
  • Private network connectivity
  • BGP and IP services
  • Monitoring
  • 24×7 remote hands
  • Infrastructure consulting
  • Cross connects
  • Recovery testing
What you can protect

Disaster Recovery for Business-Critical Systems

  1. 01

    Virtual machines

    Protect VM workloads, depending on your virtualization platform.

  2. 02

    Physical servers

    Recovery options for workloads that run on dedicated hardware.

  3. 03

    Databases

    Replicate transactional data to keep recovery points recent.

  4. 04

    ERP and accounting

    Keep core business applications recoverable when they are needed most.

  5. 05

    File and storage servers

    Protected copies of shared files, documents and archives.

  6. 06

    Websites and web applications

    Standby capacity to bring customer-facing services back online.

  7. 07

    Private and hybrid cloud

    A secondary environment for private or hybrid cloud workloads.

  8. 08

    Network configuration

    Routing, addressing and firewall rules documented for failover.

Deployment process

From Risk Assessment to a Tested Recovery Plan

  1. 01ASSESS

    Assess

    Identify critical workloads, dependencies and recovery priorities.

  2. 02DEFINE

    Define RPO and RTO

    Agree acceptable data loss and recovery time for each system.

  3. 03DESIGN

    Design

    Plan compute, storage, network and replication architecture.

  4. 04DEPLOY

    Deploy

    Provision and configure the recovery environment.

  5. 05TEST

    Test

    Run recovery drills and validate the procedure end to end.

Start Your DR Assessment
Disaster recovery guide

Disaster Recovery Planning, Explained

A practical guide to building a disaster recovery plan: what it should include, which type of recovery site you need and how to set targets you can actually meet.

What a disaster recovery plan includes

A disaster recovery plan is the documented answer to one question: if production stops, how does the business get back? It is part of wider business continuity planning (BCP) and usually covers:

  • An inventory of critical systems and the dependencies between them
  • RPO and RTO targets for each system
  • Where backups and replicas are stored, and how often they are taken
  • The recovery environment: compute, storage and network
  • Step-by-step runbooks for failover and failback
  • Roles, contacts and how the decision to fail over is made
  • A testing schedule and a record of past drills

Hot, warm and cold DR sites

Recovery sites are usually described by how ready they are to take over. The right choice depends on your RTO and budget, and different systems can use different levels.

Hot siteWarm siteCold site
ReadinessRunning and in syncPartly preparedSpace and power only
DataContinuously replicatedRegular backups or replicationRestored from backup
Recovery timeFastestModerateSlowest
CostHighestMediumLowest

How to choose RPO and RTO

Start with impact, not technology. For each system, ask what an hour of downtime costs and how much lost data the business could re-create. Billing, ERP and customer-facing systems usually need tighter targets than internal tools or archives.

Tighter targets cost more, because they need more frequent replication and more standby capacity. Setting realistic targets per system, rather than one target for everything, is the most effective way to keep DR affordable.

Why disaster recovery testing matters

An untested DR plan is an assumption. Recovery drills confirm that backups restore cleanly, that standby systems start, that users can reach services over the recovery network and that your team can follow the runbook under pressure.

Testing also shows whether your real recovery times meet your RTO. Results from each drill should feed back into the plan.

A disaster recovery site in Kolkata

A recovery site works best when it is separated from production. If your primary infrastructure runs in your office, in a public cloud or in another Indian city, HostGraber DC-01 in New Town, Kolkata can serve as an independent secondary site, with your team able to reach the hardware when needed.

DR at HostGraber can be combined with backup storage, cross connects and private networking, so data, compute and connectivity are planned as one design.

Glossary

Disaster Recovery Terms, in Plain Language

Disaster recovery (DR)
The process of restoring data, systems and services after a disruptive event.
Business continuity (BCP)
The wider plan for keeping the whole business running during and after a disruption.
RPO
Recovery Point Objective: the maximum amount of recent data loss that is acceptable.
RTO
Recovery Time Objective: the target time to restore a service after an outage.
Replication
Copying data from the primary environment to the recovery environment, continuously or on a schedule.
Snapshot
A point-in-time copy of a system or volume that can be restored later.
Failover
Switching production services from the primary environment to the recovery environment.
Failback
Returning services to the primary environment once it has been restored.
Hot, warm and cold site
Recovery sites described by how ready they are, from running and in sync (hot) to space and power only (cold).
Runbook
A step-by-step document your team follows to carry out a recovery.
Frequently asked questions

Disaster Recovery Questions Answered

Not sure where to start? Tell us what you run today and our team will suggest a recovery level.

Request DR Proposal
What is disaster recovery?

Disaster recovery is a structured approach to restoring data, systems and services after an infrastructure disruption such as hardware failure, network outage, data corruption or ransomware.

What is the difference between backup and disaster recovery?

Backup preserves copies of data. Disaster recovery includes the data plus the compute, network configuration and documented procedures needed to get services running again.

What is RPO?

Recovery Point Objective (RPO) defines how much recent data loss is acceptable after a disruption. A shorter RPO needs more frequent backup or replication.

What is RTO?

Recovery Time Objective (RTO) defines the target time to restore services after a disruption. A shorter RTO needs more infrastructure kept ready on standby.

What is the difference between a hot, warm and cold DR site?

A hot site runs in sync with production and takes over fastest. A warm site is partly prepared and needs some setup. A cold site provides space and power, with systems restored from backup when needed.

Can I protect virtual machines?

Yes. Virtual machine protection can be designed depending on your virtualization platform and recovery requirements.

Can disaster recovery be tested?

Yes. Recovery drills verify that procedures work and that the recovery infrastructure is ready, and show whether your real recovery times meet your RTO.

How often should a DR plan be tested?

Test whenever critical systems change and on a regular schedule agreed with your team. Each drill should update the runbook with what was learned.

Do you provide custom DR architecture?

Yes. HostGraber designs DR environments around your workloads, storage, network, RPO and RTO requirements.

How do I get started with disaster recovery?

Fill in the DR proposal form with your current infrastructure and recovery requirement. Our team will assess your workloads, help define RPO and RTO, and propose a design.

Disaster recovery · Kolkata

Don't Wait for the Outage. Plan Recovery Today.

Tell us what you need to protect. Our infrastructure team will assess your systems and send a DR proposal.

Get a DR Quote Discuss on WhatsApp
A better foundation for what’s next

Build what’s next. We’ll power it.

From business websites to demanding workloads, find the hosting and cloud infrastructure that fits your next move.

Web Hosting Fast & managed
Cloud Built to scale
Dedicated Bare metal power
Infrastructure Built for growth
Hosting · Cloud · Compute · Infrastructure Built by HostGraber