# Disaster Recovery Center (DRC) and Disaster Recovery Services

**URL:** https://securesys.com.tr/en/services/disaster-recovery-center-draas-services

High availability, backup and security controls are critically important in corporate information technology infrastructure. But despite all these measures, critical systems can become entirely unusable through data center outages, hardware failure, ransomware attacks, natural disasters, power problems, network outages or human error.

Organizations therefore need not only to take backups but to hold a **Disaster Recovery Center (DRC)** architecture capable of running critical services in an alternative environment should the primary systems go down.

**SecureSys Disaster Recovery Center and Disaster Recovery Services** provide end-to-end support for designing, building, replicating, testing and operating the architecture required for an organization's critical systems to run again in an alternative data center, private cloud or cloud environment.

Within the service, processes such as;

- Disaster Recovery Center,
- DRaaS,
- Secondary Data Center,
- Active-Passive DR,
- Hot Site,
- Warm Site,
- Cold Site,
- Cloud DR,
- Replication,
- Failover,
- Failback,
- RPO/RTO,
- DR Tests,
- Business Continuity

can be handled together.

The core aim of the SecureSys DR approach is not simply to build a second data center, but to ensure **critical business services can be run from an alternative environment within defined timescales during a real disaster**.

### What Is a Disaster Recovery Center?

A Disaster Recovery Center is the IT infrastructure that allows critical systems to run in an alternative location when the primary data center or production environment becomes unusable.

Within a Disaster Recovery Center, according to the organization's needs, the;

- servers,
- virtual machines,
- database systems,
- network infrastructure,
- firewall,
- storage,
- backup,
- Active Directory,
- application services,
- security systems

can be located there.

This structure does not have to be an exact copy of the primary data center.

Only the priority systems can be brought into the DR environment according to the organization's critical business processes.

### What Is Disaster Recovery?

Disaster Recovery is the set of technical processes for bringing information technology systems back into operation after a serious outage or disaster.

The Disaster Recovery process;

**Preparation → Replication → Monitoring → Disaster → Failover → Verification → Operation → Failback**

can include these steps.

The aim of a DR plan is not to prevent outages entirely, but to bring under control how quickly and with how much data loss the organization can operate again when an outage occurs.

### DRaaS – Disaster Recovery as a Service

DRaaS is offering disaster recovery infrastructure under a managed service model rather than the organization buying and operating it entirely itself.

Within SecureSys **Disaster Recovery as a Service**, processes such as;

- DR infrastructure,
- compute resources,
- storage,
- replication,
- network,
- monitoring,
- failover,
- DR tests

can be offered within the managed service.

This model can be advantageous particularly for organizations wanting to avoid the capital cost of building a second data center.

### Secondary Data Center

A Secondary Data Center is the backup data center environment sitting in a physical location different from the organization's primary data center.

When the primary data center becomes unusable, critical systems can run from the Secondary Data Center.

In Secondary Data Center projects, SecureSys evaluates the;

- network connectivity,
- server infrastructure,
- storage,
- firewall,
- replication,
- backup,
- monitoring

components together.

### The Difference Between Business Continuity and Disaster Recovery

Business Continuity and Disaster Recovery are related but different concepts.

**Business Continuity** targets an organization's business processes being able to continue during an outage.

**Disaster Recovery** focuses on the information technology systems supporting that continuity being run again in an alternative environment.

Disaster Recovery is therefore one of the technical infrastructure components of the business continuity plan.

### What Is RPO?

RPO – Recovery Point Objective refers to the maximum period of data loss an organization can accept.

For example, if the RPO is 15 minutes, the data in the DR environment must be no more than 15 minutes behind.

The RPO target affects the choice of;

- replication technology,
- backup frequency,
- network capacity,
- storage infrastructure

directly.

### What Is RTO?

RTO – Recovery Time Objective refers to how quickly a system must become operational again after a disaster.

For example, if the RTO is 2 hours, the target is for critical systems to be reachable in the alternative environment within 2 hours at the latest.

SecureSys designs the DR architecture against the RPO and RTO targets.

### RPO and RTO Analysis

Applying the same RPO/RTO value to all systems is not correct.

For example;

- the ERP system,
- Active Directory,
- database,
- e-mail,
- file server,
- test system

can hold different criticality levels.

SecureSys classifies systems by criticality level and supports setting appropriate RPO/RTO targets for each service.

### Hot Site

A Hot Site is the standby model closest to the production environment.

In this structure, the;

- server,
- storage,
- network,
- applications,
- database

can be active or in a ready state.

Data can be kept current with continuous replication.

The Hot Site model suits critical systems requiring a low RTO.

### Warm Site

A Warm Site is the DR model in which the infrastructure is ready but some systems are not at full capacity or continuously active.

In a disaster, certain systems may need to be started and configurations completed.

This model can be lower cost than a Hot Site but carry a higher RTO.

### Cold Site

A Cold Site is the DR model in which basic physical or infrastructure resources are ready but systems do not run continuously.

In a disaster, operations such as;

- preparing the servers,
- backup restore,
- network configuration,
- application deployment

may be required.

A Cold Site can be lower cost but carry longer recovery times.

### Active-Passive Disaster Recovery

In an Active-Passive DR architecture, production systems run actively in the primary data center while the systems in the DR environment sit passive or on standby.

When the primary system becomes unusable, the DR system is brought into service.

This model is widely used in many corporate Disaster Recovery architectures.

### Active-Active Disaster Recovery

In an Active-Active architecture, both locations can serve actively at the same time.

Traffic can be distributed between the two environments.

This structure provides high availability but is more complex in terms of;

- application architecture,
- database,
- network,
- data consistency

than the alternatives.

SecureSys can evaluate Active-Active DR options for suitable applications.

### Disaster Recovery Replication

Data must be transferred from the primary system to the standby system for the DR environment to stay current.

Replication can be carried out at the;

- storage replication,
- VM replication,
- database replication,
- application replication

levels.

### Synchronous Replication

In the Synchronous Replication model, data is written to the primary and standby environments at the same time.

This method can provide a low RPO.

But the latency and network capacity between the two locations are critically important.

### Asynchronous Replication

In the Asynchronous Replication model, data is first written to the primary environment and then sent to the secondary system.

This approach can be more suitable for remote locations.

But it can create a risk of a certain amount of data loss.

### VM Replication

Virtual machines can be transferred from the primary data center to the DR center by replication.

SecureSys can evaluate VM replication solutions in;

- VMware,
- Hyper-V,
- Proxmox

and other suitable virtualization environments.

### Database Replication

Replication at database level can be used to keep databases current in the DR environment.

SecureSys can evaluate technologies such as;

- MSSQL Always On,
- PostgreSQL replication,
- MySQL replication,
- Oracle standby

and similar options.

### Storage Replication

Data replication at block or volume level can be carried out between storage systems.

This approach can be used particularly in large virtualization environments.

### Application-Level Replication

Some applications may hold their own replication mechanism.

In its DR architecture, SecureSys also takes into account the replication methods recommended by the application vendor.

### Cloud Disaster Recovery

Cloud infrastructure provides flexible options for building a DR environment.

Instead of the organization building its own second data center, critical systems can be held on standby in the cloud.

Within SecureSys Cloud DR, the;

- compute,
- storage,
- replication,
- network,
- backup,
- failover

components can be designed.

### On-Premise to Cloud DR

While the organization's primary systems run in its own data center, the DR environment can be built in the cloud.

Example:

**On-Premise Production → Replication → Cloud DR**

This model can reduce the need to invest in a second physical data center.

### Cloud-to-Cloud DR

A DR copy of systems running on public cloud can be created in a different region or a different cloud environment.

This approach can provide additional resilience against region-based outages.

### Multi-Cloud Disaster Recovery

In critical organizations, the primary cloud and the DR cloud can be held with different providers.

This model can reduce provider dependency.

But application compatibility, network and cost must be planned carefully.

### DR Network Design

Disaster Recovery is not merely a server and storage project.

The;

- IP addresses,
- VLANs,
- routing,
- firewall,
- DNS,
- VPN,
- load balancer

structures in the DR center must also be prepared.

SecureSys designs the primary and DR network architecture together.

### DR Firewall Policies

Bringing systems up in the DR environment during a disaster is not enough on its own.

The firewall policies must also be brought into service correctly.

SecureSys can bring the;

- security policy,
- NAT,
- VPN,
- DMZ,
- inter-zone access

configurations into the DR scenario.

### DR VPN Connections

Alternative VPN routes can be built so users and branches can reach the DR environment.

For example;

**Branch → VPN → Primary Data Center**

is used under normal conditions, while in a disaster;

**Branch → VPN → DR Center**

can be brought into service.

### DNS Failover

DNS records may need to be changed to direct applications to the DR environment.

SecureSys can bring DNS failover processes into the DR plan.

### Global Load Balancing

In more advanced structures, global load balancer technologies can be used so traffic is directed automatically to the DR center should the primary environment become unreachable.

### DR Active Directory

Authentication services must also be reachable for critical systems to run in the DR environment.

SecureSys can place an additional Domain Controller in the DR center.

User authentication processes can then continue even when the primary data center is unusable.

### DNS and DHCP Disaster Recovery

Along with Active Directory, DNS and other critical network services may need to be usable in the DR environment.

SecureSys evaluates the redundancy and replication status of these services.

### Database Disaster Recovery

Database systems are the most critical data component for many organizations.

In the database DR architecture, SecureSys can evaluate the;

- replication,
- backup,
- standby,
- failover,
- restore

technologies together.

### DBaaS and Disaster Recovery

The SecureSys Database as a Service infrastructure can work integrated with the DR environment.

Example:

**Primary DBaaS → Replication → DR DBaaS**

This structure can allow database services to be brought up quickly in the second environment.

### CaaS and Kubernetes Disaster Recovery

On container platforms, backing up the Kubernetes cluster configuration alone may not be enough.

Within CaaS DR, SecureSys can evaluate the;

- secondary Kubernetes cluster,
- private registry,
- persistent data,
- configuration,
- DNS

components together.

### Kubernetes Multi-Cluster DR

Separate Kubernetes clusters can be built for production and DR.

Example:

**Production Cluster → Application/Data Replication → DR Cluster**

In a disaster, applications can run on the alternative cluster.

### Cold Backup and DR Integration

Cold Backup is one of the important complements to a Disaster Recovery infrastructure.

Replication systems can provide a fast RTO, but in attacks such as ransomware, corrupted or encrypted data can replicate into the DR environment as well.

SecureSys can therefore build, in addition to the;

**Production → Replication → DR**

architecture, a;

**Production → Immutable Backup → Cold Backup**

layer.

Both fast failover and the ability to recover clean data are then targeted.

### Replication Is Not Backup

The concepts of replication and backup should not be confused with one another.

Replication carries the changes made on the primary system across to the secondary environment.

Data deleted by mistake or encrypted by ransomware replicates too.

Backup, by contrast, stores copies of the data from past points in time.

In a strong DR architecture, **Replication + Backup + Immutable/Cold Copy** should therefore be used together.

### Immutable Backup and DR

Using Immutable Backup, backup data can be prevented from being modified or deleted for a defined period.

This structure can provide a trustworthy restore source after a ransomware attack.

### Air-Gapped Backup and DR

In critical organizations, a fully isolated Air-Gapped Backup can also sit alongside the DR infrastructure.

This approach can provide a last safe copy of the data should both the primary and DR environments be affected.

### Ransomware Disaster Recovery

Recovery after ransomware does not simply mean bringing up the DR systems.

The attack's impact on;

- Active Directory,
- endpoints,
- network,
- backup,
- database,
- privileged accounts

must first be analyzed.

Otherwise the attacker can remain active in the DR environment too.

In the ransomware recovery process, SecureSys can run cyber incident response and DR teams together.

### Clean Room Recovery

In critical ransomware incidents, restoring systems directly into the production or DR environment can create risk.

An isolated **Clean Room Recovery** environment can be built instead.

There;

- the system is restored,
- malware analysis is carried out,
- security controls are applied,
- credentials are renewed,
- and the system verified as clean moves into production.

### Isolated Recovery Network

Carrying out recovery operations within the standard production network can cause the attack to spread again.

SecureSys can build a separate and controlled Recovery Network for restore processes.

### Red Network and Disaster Recovery

If critical systems run within a Red Network, the same security architecture must be preserved in the DR center too.

Example:

**Primary Red Network → Secure Replication → DR Red Network**

Moving critical systems into the standard Green Network in the DR environment can break the isolation approach.

SecureSys can build security zones in the DR center on the same principles.

### Isolated DR Center

In organizations requiring high security, the DR Center can be designed to be independent of the production environment from a security perspective.

Separate;

- firewall,
- network,
- management,
- identity,
- backup

systems can be used.

This structure can reduce risks arising from shared credentials or a shared network.

### DR and Zero Trust

The DR environment not being in use does not mean it is trusted.

In DR management, SecureSys can evaluate the;

- MFA,
- PAM,
- minimum privilege,
- separate administrator accounts,
- network isolation

controls.

### DR PAM Integration

Administrator accounts have to be used intensively during a disaster.

Privileged access processes in the DR environment can therefore be managed through PAM.

With PAM, the;

- password vaulting,
- access approval,
- session recording,
- time-limited privileges

controls can be applied.

### DR Management Network

The firewall, server, switch, storage and hypervisor systems in the DR center can be managed over a separate Management Network.

Direct management access to these systems from the standard user network can be restricted.

### DR Monitoring

DR systems being passive does not mean they should not be monitored.

SecureSys can monitor components such as;

- replication status,
- storage capacity,
- VM health,
- database replication,
- backup,
- network connectivity

centrally.

### 7x24 Disaster Recovery Monitoring

Noticing replication problems days later in critical DR infrastructure creates serious risk.

Within the service scope, SecureSys can provide 7x24 monitoring of the DR infrastructure.

### Replication Monitoring

Replication systems must be checked continuously.

The metrics that can be monitored;

- replication lag,
- failed replication,
- data consistency,
- link status,
- storage capacity

can be defined in this way.

### DR and SOC 7x24 Integration

The security logs of DR systems can be forwarded to SIEM and the SOC.

The;

- administrator logins,
- firewall changes,
- unexpected system activity,
- backup operations

in the standby environment can then be monitored.

### EDR/XDR in the DR Environment

Servers in the DR center can hold an attack surface even when they are passive.

Using EDR/XDR agents on supported systems brings the DR environment into security visibility too.

### DR and NDR

Network Detection and Response solutions can also be used to monitor DR network traffic.

This approach can make unusual network activity visible, particularly during failover.

### Disaster Recovery Runbook

A successful DR operation needs not only technical infrastructure but the right documentation.

Within the SecureSys DR Runbook, steps such as;

- which system is brought up first,
- which team is responsible,
- which network changes are made,
- how DNS is changed,
- how tests are carried out,
- how users are redirected

can be documented.

### DR System Prioritization

Recovering all systems at once may not always be possible.

Systems can therefore be separated into priority levels.

For example;

**Tier 0:** Identity and infrastructure services **Tier 1:** Critical business applications **Tier 2:** Important supporting systems **Tier 3:** Standard systems

The recovery order can be built on this criticality model.

### Application Dependency Mapping

Bringing up an application alone may not be enough.

An ERP application can depend on the;

- Active Directory,
- DNS,
- database,
- file server,
- middleware

services.

In DR planning, SecureSys analyzes application dependencies and can build the correct recovery order.

### What Is DR Failover?

Failover is moving services to the DR environment when production systems become unusable.

Failover can be carried out;

- manually,
- semi-automatically,
- automatically

depending on the design.

The method is determined by the organization's security, cost and RTO requirements.

### Planned Failover

In cases such as planned maintenance or a data center move, the switch to the DR environment can be made in a controlled way.

During a Planned Failover, data synchronization can be completed in a controlled manner.

### Unplanned Failover

In a sudden data center outage or disaster, a fast switch to the DR environment may be required.

In this scenario, having the processes prepared in advance is critical.

### What Is Failback?

When the primary data center becomes usable again, systems have to be moved back from the DR center to the main environment.

This process is called **Failback**.

Failback must be planned as carefully as failover.

### Reverse Replication

The new data created while running in the DR environment has to be carried back to the primary environment.

Reverse replication can therefore be applied before failback.

### DR Tests

Having built a DR infrastructure does not mean it will work during a disaster.

DR tests must therefore be carried out at defined intervals.

In tests, SecureSys can verify the;

- replication,
- VM startup,
- database,
- network,
- DNS,
- application,
- user access

scenarios.

### Tabletop DR Exercise

Not every DR test has to be carried out by shutting down production systems.

With a Tabletop Exercise, the;

- scenario,
- responsible parties,
- communication,
- decision processes,
- recovery order

can be tested around the table.

### Technical DR Exercise

In technical exercises, selected systems are run from the DR environment in a controlled way.

This test helps measure real recovery times.

### Full Failover Test

In more mature structures, all critical services can be moved to the DR center within a defined maintenance window.

This test is one of the verification methods closest to a real disaster.

### Isolated DR Test

An isolated test network can be created in the DR environment without affecting production users.

Replicated systems can then be started and checked safely.

### DR Test Report

After DR tests, the;

- actual RTO,
- actual RPO,
- failed steps,
- dependency problems,
- network errors,
- improvement actions

can be reported.

### RTO Verification

Whether an RTO set at 2 hours on paper is genuinely achieved can only be established through a DR exercise.

SecureSys can measure actual recovery times and compare them against the targets.

### RPO Verification

The real RPO value can be verified by checking the last usable data point in the replication or backup system.

### Disaster Recovery Health Check

Within the SecureSys **DR Health Check** service, the technical and operational state of the existing Disaster Recovery infrastructure is analyzed.

In the work, the;

- replication,
- RPO/RTO,
- backup,
- DR network,
- firewall,
- DNS,
- Active Directory,
- failover,
- runbook,
- most recent DR tests

can be examined.

### DR Readiness Assessment

A Disaster Recovery Readiness Assessment can be carried out for organizations without DR infrastructure or unsure whether theirs works.

In the work, a DR roadmap can be built by evaluating the;

- critical systems,
- application dependencies,
- existing backup,
- replication,
- secondary site,
- operational processes

elements.

### Single Point of Failure Analysis

In DR planning, not only the data center but critical dependencies must be evaluated.

For example, even though the DR environment is ready, having;

- a single internet line,
- a single DNS service,
- a single firewall,
- a single identity system

can block the recovery process.

SecureSys analyzes the SPOF points.

### DR Capacity Planning

The DR environment does not always need to hold the same capacity as the production environment.

But there must be enough;

- CPU,
- RAM,
- storage,
- network

capacity to run the critical workloads.

SecureSys can carry out DR sizing work.

### DR Resource Reservation

In cloud-based DR models, all compute resources may not need to be kept running continuously.

Cost can be optimized by defining the resources to be brought online in a disaster.

### DR Cost Optimization

Cost matters as much as security and availability in Disaster Recovery projects.

SecureSys evaluates the;

- Hot Site,
- Warm Site,
- Cold Site,
- Cloud DR,
- DRaaS

options together with the RTO/RPO and budget targets.

### The DRaaS Cost Model

In the DRaaS model, rather than making the full physical investment in a second data center, an organization can use the compute, storage and operational capacity it needs under a service model.

This approach can reduce the CAPEX burden.

### The Disaster Recovery Center and KVKK

Where personal data is copied into the DR environment, the backup and replica systems must also be protected with appropriate security controls.

The DR environment being as secure as production matters.

### Disaster Recovery and ISO/IEC 27001

In the ISO/IEC 27001 information security management system, controls such as business continuity, information backup and ICT readiness carry weight.

Disaster Recovery processes can contribute to supporting these controls technically.

### Disaster Recovery and ISO 22301

The ISO 22301 Business Continuity Management System targets organizations being prepared for disruption.

DR infrastructure is one of the critical technical components of the business continuity approach.

### Disaster Recovery and DORA

ICT resilience and the sustainability of critical systems in the face of disruption matter in financial institutions.

Regular DR tests and recovery processes can support the operational resilience approach.

### Disaster Recovery and Cyber Resilience

A modern DR approach should not cover only hardware failure or natural disasters.

Ransomware, credential compromise, data deletion and supply-chain attacks must also be brought into DR scenarios.

SecureSys therefore approaches Disaster Recovery from a **Cyber Resilience** perspective.

### Cyber Recovery

Cyber Recovery is the recovery approach focused on restoring clean and trustworthy systems, particularly after cyber attacks.

In this model, the;

- immutable backup,
- Clean Room,
- isolated recovery,
- credential reset,
- malware validation

processes can be applied.

### Disaster Recovery and Incident Response

In major cyber incidents, Incident Response and DR teams working separately can be risky.

Restoring systems before the incident response team has confirmed the attack is cleared can cause the attack to restart.

Where required, SecureSys can use the;

**SOC/IR → Containment → Clean Recovery → DR Activation**

approach.

### The DR and SOC Escalation Process

When a critical security or availability incident is detected in the primary data center, the SOC and infrastructure teams can assess it together.

DR activation can be carried out according to a defined decision mechanism and escalation procedure.

### Disaster Declaration

Not every outage requires DR activation.

The conditions under which a "Disaster" is declared must be defined in advance within the organization.

For example;

- the data center becoming entirely unreachable,
- critical systems being down longer than a defined period,
- a major ransomware attack

can be among the DR declaration criteria.

### DR Decision Matrix

Within the SecureSys DR runbook, a decision matrix can be built on the;

- incident type,
- estimated outage duration,
- system impact,
- data status,
- recovery option

dimensions.

### Emergency Communication

During a disaster, the communication process matters as much as the technical teams.

The DR plan must hold communication and escalation lists for the;

- technical team,
- management,
- business units,
- third-party providers

parties involved.

### Third-Party Dependencies

Even when the DR environment is ready, the unavailability of external service providers can affect the system.

For example;

- internet provider,
- DNS,
- license server,
- SaaS,
- external API

dependencies must be brought into the DR plan.

### DR Documentation

Within the project scope, SecureSys can produce the;

- DR topology,
- IP plan,
- server list,
- replication table,
- recovery order,
- RPO/RTO,
- contact list,
- failover procedure,
- failback procedure

documentation.

### DR Topology Documentation

On the visual DR architecture, the;

**Primary Data Center → Replication → DR Center → Backup/Cold Backup**

connections can be shown.

Network, firewall and application dependencies can be added to the topology.

### DR Inventory Management

For each system within DR scope, the;

- application owner,
- server,
- database,
- IP,
- RPO,
- RTO,
- replication,
- backup,
- DR priority

information can be held.

### DR Change Management

Major changes made on production systems must be reflected in the DR environment too.

Otherwise old configurations can be found during a disaster.

In the DR change management process, SecureSys can track the alignment of production and secondary systems.

### Configuration Drift

When no work is carried out in the DR environment for a long period, production and DR configurations can diverge.

This can create problems during failover.

Configuration drift can be detected with periodic checks.

### Patch Management and DR

Critical patch and upgrade operations applied to production systems must also be planned in the DR environment.

Otherwise a version mismatch can arise between the two environments.

### DR Monitoring Dashboard

Critical DR indicators can be tracked through a central dashboard.

For example, the;

- replication health,
- backup status,
- RPO lag,
- resource capacity,
- system availability

can be displayed.

### DR Reporting

In periodic Disaster Recovery reports, SecureSys can present the;

- replication status,
- RPO,
- backup,
- DR capacity,
- test results,
- open actions,
- critical risks

figures.

### Executive DR Report

For senior management, free of technical detail, the;

- DR readiness of critical services,
- date of the last test,
- actual RTO/RPO,
- significant risks,
- action status

can be summarized.

### Disaster Recovery SLA

In a DRaaS or Managed DR service model, criteria such as;

- monitoring,
- incident response,
- failover assistance,
- test frequency,
- technical support

can be defined within the SLA.

### Managed Disaster Recovery Service

With the SecureSys Managed Disaster Recovery service, the daily operations of an organization's DR infrastructure can be managed.

Within the service, the;

- replication monitoring,
- backup verification,
- DR system health,
- change management,
- failover support,
- DR tests,
- reporting

processes can be carried out.

### 7x24 DR Operations Support

In critical organizations, there is no telling at what hour a disaster will occur.

Depending on the service model, 7x24 Disaster Recovery operations support can therefore be provided.

### The SecureSys Disaster Recovery Center Service Process

#### \1. Business Impact and Criticality Analysis

Critical business systems and their dependencies are identified.

#### \2. Setting RPO and RTO

Acceptable data loss and outage durations are defined for each system.

#### \3. Choosing the DR Strategy

The Hot Site, Warm Site, Cold Site, Cloud DR or DRaaS model is evaluated.

#### \4. Target Architecture Design

The server, storage, network, firewall and security architecture is prepared.

#### \5. Replication

Replication is configured at VM, database, storage or application level.

#### \6. Backup and Cyber Recovery

Immutable Backup, Cold Backup and, where required, Air Gap layers are built.

#### \7. Security

PAM, MFA, network isolation, Red Network and SOC integrations are applied.

#### \8. Monitoring

The DR and replication infrastructure is monitored continuously.

#### \9. DR Runbook

Failover and failback procedures are documented.

#### \10. DR Test

Technical recovery scenarios are tested in a controlled way.

#### \11. Reporting

The actual RPO/RTO and any gaps identified are reported.

#### \12. Continuous Improvement

The DR environment is updated in line with production changes and new risks.

### Why the SecureSys Disaster Recovery Center Service?

A Disaster Recovery Center is not simply running a few servers in a second location.

A real Disaster Recovery architecture requires the;

**Server + Network + Database + Replication + Backup + Security + Identity + SOC + Runbook + DR Tests**

components to be managed together.

SecureSys approaches Disaster Recovery projects from a **cyber resilience** perspective that goes beyond the classic infrastructure approach.

In ransomware scenarios in particular, it focuses not only on fast failover but on the ability to recover clean and trustworthy data.

Where required, the;

**Primary Data Center + DR Center + Immutable Backup + Cold Backup + Clean Room + SOC**

architectures can therefore be designed together.

### Frequently Asked Questions

#### What is a Disaster Recovery Center?

It is the standby data center or cloud infrastructure that allows critical information systems to run in an alternative environment when the primary data center becomes unusable.

#### Are Disaster Recovery and backup the same thing?

No. Backup stores a copy of the data, while Disaster Recovery provides for critical systems to run in an alternative environment.

#### What is DRaaS?

DRaaS is offering Disaster Recovery infrastructure and operations under a managed service model.

#### What is a Hot Site?

It is a ready DR environment at a capacity close to the production systems that can be brought online quickly.

#### What is a Warm Site?

It is the DR model in which the basic infrastructure is ready but some services have to be brought online during a disaster.

#### What is a Cold Site?

It is the low-cost DR model in which the basic location and infrastructure exist but systems have to be restored or deployed.

#### What is the difference between RPO and RTO?

RPO refers to acceptable data loss, while RTO refers to acceptable system outage duration.

#### How often should the DR environment be tested?

Test frequency should be set according to the organization's criticality and risk level. Regular technical DR exercises are recommended for critical systems.

#### Does DR help in a ransomware attack?

Yes, but if only replication is used, encrypted data can be carried into DR as well. Immutable and isolated backup layers are therefore important.

#### Can the DR center support a Red Network architecture?

Yes. The isolated security zones in the production environment can be built in the DR center on the same security model.

#### Can DR systems be monitored by the SOC?

Yes. DR firewall, server, Active Directory and other system logs can be forwarded to SIEM/SOC infrastructure.

#### Can Disaster Recovery be built in the cloud?

Yes. On-premise production systems can be replicated into a DR environment in the cloud, or a cloud-to-cloud DR architecture can be built.

### Prepare Your Critical Business Systems for Disruption with SecureSys Disaster Recovery

Taking backups protects an organization's data; but unless it has been planned in advance in which order, on which network, with which database and in how long critical systems will run again after a real disaster, business continuity is not guaranteed.

With SecureSys you can have your existing infrastructure analyzed, set RPO/RTO targets for your critical systems, build your Secondary Data Center or Cloud DR architecture, and verify your Disaster Recovery plan with real technical tests.

For ransomware and advanced cyber incidents, you can strengthen your Disaster Recovery structure with the **Immutable Backup, Cold Backup, isolated Recovery Network and Clean Room** approaches.

**Contact SecureSys for detailed information on Disaster Recovery Center, Disaster Recovery as a Service, Cloud DR, Secondary Data Center or DR Test Services.**

**Do not leave your disaster plan on paper; turn it into a tested, measured and genuinely operable Disaster Recovery architecture.**