Celerity Limited

Disaster Recovery as a Service - Custodian (DRaaS)

Celerity Custodian DRaaS provides secure, cost effective Disaster Recovery that replicates data, physical and virtual environments to our UK DR facility, reducing resource burden, providing redundant infrastructure and increase agility compared to traditional DR. The service replicates to our IL2, ISO27001 secure facility or your nominated second site.


  • Service provided from multiple UK Data Centres
  • Flexible Contract, Managed Hosting, Managed Service or As a Service
  • Dedicated or Secure Multi-Tenanted Virtual Environment using Industry Leading Hypervisors
  • High Availability N+1 Optional
  • Accredited to Industry Standards including ISO27001
  • Multiple Carrier Circuits via Diverse Routes and Multiple Data Centres
  • 24x7 Infrastructure Monitoring
  • Intel – Windows and LINUX
  • Application Level Recovery


  • Cost Reduction
  • Managed Service Support
  • Flexibility
  • Compliance
  • Data and Service Protection


£59.67 per server per month

Service documents

G-Cloud 9


Celerity Limited

Helen Swarbrick

01772 542450


Service scope

Service scope
Service constraints N/A
System requirements
  • Current licence/s or appropriate legal agreement/s applicable
  • Customer responsibility of integrity/content of data

User support

User support
Email or online ticketing support Yes, at extra cost
Support response times 4 Hours Response, Monday to Friday (excluding bank/public holidays)
User can manage status and priority of support tickets Yes
Online ticketing support accessibility WCAG 2.0 AA or EN 301 549
Phone support Yes
Phone support availability 9 to 5 (UK time), Monday to Friday
Web chat support No
Onsite support Yes, at extra cost
Support levels Celerity uses an ITIL aligned service management methodology to deliver the Custodian DRaaS and BaaS to clients. The DRaaS and BaaS solutions are monitored and managed to identify and resolve data at risk, unexpected performance degradation or data growth that could impact service availability and recovery. Celerity use an ITIL aligned service management methodology to deliver our cloud and managed services clients. Clients can log service requests or incidents via the email, dedicated web portal or calling the Celerity Service Desk 08:00-18:00 Mon-Fri excluding public holidays. Priority 1/Severity 1 incidents outside these times can be logged by the portal or calls to our control Centre only. Celerity will produce standardised monthly reports that detail client activity and consumption of the services.

The costs below represent the monthly charge per Gb, to avoid confusion 1Tb is equivalent to 1000Gb.
1-50Tb (BaaS £0.14, DRaaS £0.45), 51-200Tb (BaaS £0.12, DRaaS £0.34), 201-500Tb (BaaS £0.10, DRaaS £0.27), >500Tb (BaaS £0.07, DRaaS £0.23)

A technical advocate (TA) will be allocated to you. The TA will be the primary technical contact throughout the contractual term.
Support available to third parties Yes

Onboarding and offboarding

Onboarding and offboarding
Getting started Celerity provides training and documentation for both on-boarding and off-boarding process. Training can be provided both remotely and onsite (at an additional cost).
Service documentation Yes
Documentation formats PDF
End-of-contract data extraction The replication virtual machines are stored in a mixture of VMware and proprietary formats. You can only get access to available recovery points via the provided failover mechanism in Live or Test modes.  When a VM is failed over, the data is available in the same format in which it was stored.
Professional services will be required to extract and return consumer generated data.  Such services will be quantified based on the volume and nature of the consumer generated data. Professional services will be based on our standard rate card.  Celerity will erase all consumer data at the end of the contract period. This is confirmed by a CoF.
End-of-contract process The customer has the right to terminate the agreement at any point and must give notice to terminate before the contract end date. Each agreement carries an economic break point, any termination of the agreement within the economic break point will attract a cost.

Using the service

Using the service
Web browser interface No
Command line interface No


Scaling available Yes
Scaling type Manual
Independence of resources The service is allocated a guaranteed amount of resource to suit the requirements which prevents the solution being impacted or degraded during normal usage.
Usage notifications Yes
Usage reporting
  • Email
  • Other


Infrastructure or application metrics No


Supplier type Not a reseller

Staff security

Staff security
Staff security clearance Other security clearance
Government security clearance Up to Security Clearance (SC)

Asset protection

Asset protection
Knowledge of data storage and processing locations Yes
Data storage and processing locations
  • United Kingdom
  • European Economic Area (EEA)
User control over data storage and processing locations Yes
Datacentre security standards Managed by a third party
Penetration testing frequency At least once a year
Penetration testing approach ‘IT Health Check’ performed by a CHECK service provider
Protecting data at rest
  • Physical access control, complying with CSA CCM v3.0
  • Encryption of all physical media
  • Scale, obfuscating techniques, or data storage sharding
Data sanitisation process Yes
Data sanitisation type Explicit overwriting of storage before reallocation
Equipment disposal approach Complying with a recognised standard, for example CSA CCM v.30, CAS (Sanitisation) or ISO/IEC 27001

Backup and recovery

Backup and recovery
Backup and recovery Yes
What’s backed up
  • Virtual Machines
  • Databases
  • Operating Systems
  • Data
  • Configurations
Backup controls Users have access to the software's interface, which allows the user to configure and schedule backups.
Datacentre setup Multiple datacentres with disaster recovery
Scheduling backups Users schedule backups through a web interface
Backup recovery Users can recover backups themselves, for example through a web interface

Data-in-transit protection

Data-in-transit protection
Data protection between buyer and supplier networks
  • Private network or public sector network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
  • Bonded fibre optic connections
Data protection within supplier network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway

Availability and resilience

Availability and resilience
Guaranteed availability Services are available 365 days x 24 hrs with guaranteed SLA of 99% of availability.
Approach to resilience Available on request.
Outage reporting Celerity monitors the environment in real time providing information on utilisation, incidents or outages. Our system monitors the environment 24 hours a day and automatically sends e-mail reports of any outages to named individuals.

Identity and authentication

Identity and authentication
User authentication
  • Public key authentication (including by TLS client certificate)
  • Dedicated link (for example VPN)
  • Username or password
Access restrictions in management interfaces and support channels Access is restricted by the user accounts, VLAN on the network and access to the network interface.  Routing restrictions are in place with registered MAC addresses and access to the routers is restricted to admin’s only.  VPN’s are in place to ensure the data to secure during transit.
Access restriction testing frequency At least once a year
Management access authentication
  • Public key authentication (including by TLS client certificate)
  • Dedicated link (for example VPN)
  • Username or password
Devices users manage the service through Directly from any device which may also be used for normal business (for example web browsing or viewing external email)

Audit information for users

Audit information for users
Access to user activity audit information Users contact the support team to get audit information
How long user audit data is stored for User-defined
Access to supplier activity audit information Users contact the support team to get audit information
How long supplier audit data is stored for User-defined
How long system logs are stored for User-defined

Standards and certifications

Standards and certifications
ISO/IEC 27001 certification Yes
Who accredited the ISO/IEC 27001 The British Assessment Bureau
ISO/IEC 27001 accreditation date 13/11/2014
What the ISO/IEC 27001 doesn’t cover Our certification covers all requirements within the ISO27001:2013 standard.
ISO 28000:2007 certification No
CSA STAR certification No
PCI certification No
Other security accreditations No

Security governance

Security governance
Named board-level person responsible for service security Yes
Security governance accreditation Yes
Security governance standards ISO/IEC 27001
Information security policies and processes Celerity follows all security process documented within our Information Security Management System (ISMS) Policy Manual. Adhering to our ISO27001 accreditation.

Operational security

Operational security
Configuration and change management standard Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Configuration and change management approach Celerity have a formal Change Management process in place. The Change Management Board meet once a week discuss, assess, approve or reject request for changes to ensure the integrity of the process. The CMB also provide approval for emergency change requests based on the merit and impact of the RFC.
Vulnerability management type Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Vulnerability management approach Celerity use a number of tools to ensure that the environment provided is suitably patched at a level to provide a secure service. Potential threats are identified through comparing our environment against industry recommendations. Patches and security updates are applied based on the severity and the importance and given an appropriate resource if approved through by CMB for a timely deployment.
Protective monitoring type Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Protective monitoring approach Risk assessments are carried out to identify potential compromises. Risks are measured against a baseline of controls and any weakness or threats are addressed accordingly.
Incident management type Conforms to a recognised standard, for example, CSA CCM v3.0 or ISO/IEC 27035:2011 or SSAE-16 / ISAE 3402
Incident management approach The Information Security Officer, in conjunction with the Technical Director, will assess the seriousness of the situation and will take any necessary immediate action to limit any potential impact. The Information Security Officer (or nominated employee) is responsible for completing a Security Incident Management form and for logging this in the Security Incidents Log. Incidents are identified by a simple classification (High / Medium / Low) based on the nature of the incident and its source. This classification is used for prioritisation and for subsequent trend analysis.

Secure development

Secure development
Approach to secure software development best practice Conforms to a recognised standard, but self-assessed

Separation between users

Separation between users
Virtualisation technology used to keep applications and users sharing the same infrastructure apart Yes
Who implements virtualisation Supplier
Virtualisation technologies used VMware
How shared infrastructure is kept separate Each Virtual instance has access to a pool of processors and dedicated memory. The virtual environments have encrypted private tunnels to the network ensuring data is secure and segregated from other customers data and network traffic.

Energy efficiency

Energy efficiency
Energy-efficient datacentres Yes


Price £59.67 per server per month
Discount for educational organisations No
Free trial available No


Pricing document View uploaded document
Skills Framework for the Information Age rate card View uploaded document
Service definition document View uploaded document
Terms and conditions document View uploaded document
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