Ontrack engineers can successfully recover data from the oldest to the most recent DAS, SAN or SDS server environments on the market.

We support all vendors, media formats and operating systems. We know your storage systems work around the clock and data loss can happen at any time.


Experts on all storage systems

A SAN system offers very good performance, high reliability and simplified management. These systems rarely fail and data loss is usually the result of a user error or some other data management function.

The recovery of a SAN system is often an emergency, which is why Ontrack is available 24/7/365 to help recover business critical data. 

Common types of storage system failures

Overwritten storage configuration • Power surge • Failed RAID rebuild • Failed hard disk drive(s)
Deleted snapshots • Metadata corruption • Snapshot management errors • Data management errors

Whatever your data loss situation, Ontrack can help. We also provide data recovery services for the following scenarios:

Hardware failures

  • Failed drives
  • Failed controllers
  • Power issues

Software failures

  • Failed RAID rebuilds
  • Metadata corruption

User error

  • Deleted data/snapshots
  • Overwritten volumes
  • Deleted volumes
  • Data management errors

24/7/365 availability

We know your storage systems work around the clock and data loss can happen at any time. That's why we have a team of experienced consultants and engineers working 24/7 ready to recover your data.

During your free consultation our data recovery experts will:

  • Confirm your hardware, configuration, operating system and virtualisation software
  • Assess the data loss situation and ongoing risks
  • Provide tips to prevent further data loss
  • Assess the possibility of a Remote Data Recovery
  • Advise on preparations to send in for an in lab data recovery
+44 (0)1372 741 999
SAN data recovery specialists

SAN manufacturer partnerships

Partnerships for successful data recoveries

We work directly with most DAS, SAN and SDS server manufacturers to provide you with the best data recovery solutions possible.

Ontrack partners with most hardware and software OEMs to produce the best results for our customers by increasing the speed, accuracy and success of data recovery. Ontrack also offers the fastest and most secure data recovery through our patented  Remote Data Recovery (RDR) service.

+44 (0)1372 741 999


Enterprise NAS/SAN/Server Case Studies

Ontrack is assisted by NetApp’s technology to solve a ransomware infection.

Feb 20, 2020, 16:37 PM
Title : Ontrack is assisted by NetApp’s technology to solve a ransomware infection.
Client :
A single user’s laptop at a large pharmaceutical company was infected with CryptoLocker ransomware.

This malware encrypts the user’s files and withholds the encryption key until you pay the ransom amount. The laptop was connected to the corporate network which allowed the malware to infect a CIFS volume which was set up as a file share on a NetApp FAS. The malware was able to infiltrate the file share and encrypt the majority of the files. The IT team was not notified of the infection until after the backup retention period had expired, meaning that the backup contained only encrypted data. The total impact resulted in inaccessible data on:

■ 46 drives

■ 1 aggregate

■ 1 volume infected on a RAID-DP

To perform the recovery, the aggregate needed to be taken offline, which affected 17 volumes in total.
The customer brought their 46 drives into our New Jersey lab for evaluation and Ontrack engineers got to work on a solution.

The engineering team from Ontrack:

■ Virtually rebuilt the RAID groups which were strewn across 10 different shelves

■ Virtually rebuilt the aggregate

■ Virtually rebuilt the critical volume

An additional challenge on this recovery was that the aggregate was in use for two weeks after the incident occurred which resulted in some data being overwritten.
Ontrack was able to virtually rebuild the volume containing the CIFS share and encrypted data.

Leveraging NetApp’s proprietary OS (OnTap) and file system (WAFL), Ontrack engineers used multiple consistency points to “walk back” in time to find and merge unencrypted copies of the critical data to return to the customer. This type of ransomware recovery is only possible on storage like NetApp’s FAS because of the way the data is stored on the volume.
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The data recovery process

From initial consultation to ongoing support, we help businesses and consumers in any data loss situation – from simple to the most complex and catastrophic.

When business or personal data is lost, we understand that it can be a very frustrating and stressful time. That's why our data recovery process is straightforward and transparent, and we'll keep you up to date every step of the way.

Join over a half million people and businesses who have trusted Ontrack to recover their data.

We’ll collect your device and perform an evaluation, free of charge

Data recovery for single drives start from £399 + VAT, and for smartphone from £400 + VAT. The final price will be determined at the end of the evaluation, according to the complexity of the work involved and the urgency required.

To begin, start by clicking on the type of media from which you need data recovered. The evaluation time for single hard drives (HDD and SSD) is four hours*, and within 24 hours for RAID systems*. Other media, such as mobile phones do not require an evaluation to provide an accurate quotation.

*These are typical time frames and apply within normal business hours (Monday to Friday, 9am to 5pm). For an out of hours, emergency service, or if you need further assistance, please contact us on +44 (0)1372 741 999.

Step 1

Device Type
Step 2

Data Loss Reason
Step 3

Details & Evaluation

What type of device do you need data recovery for?

What is the main reason for your data loss?

What data is most important to you? Additional comments?

* The free evaluation may not be possible. Please contact us or enter your details and we will contact you as soon as possible. In case of assistance please call: +44 (0)1372 741 999

1. Contact details

2. Shipping details

Would you like to start your FREE evaluation and arrange a FREE pick up?:
Complimentary shipping is not available in your country.
By submitting this form you acknowledge that:
  • The free evaluation will be completed by KLDiscovery Ontrack Ltd (trading as Ontrack), Nexus, 25 Farringdon Street, London EC4A 4AB.
  • If we are unable to recover your data or you do not go ahead with the recovery, we are able to securely destroy your media. If you would like it returned to you the cost would be £9.60 (inc. VAT) for UK shipping.
  • You authorise Ontrack to begin the evaluation immediately. During the Free Evaluation, you can cancel at any time. If you are a consumer and place an Order, you have a period of 14 days in which to cancel the Order but you acknowledge that your right to cancel will be lost if Ontrack completes the evaluation before your notice to cancel is received. Full details for cancellation and your rights are set out in our Terms and Condition. In order to cancel, please email or call Ontrack using the contact details provided or use the model cancellation form on our website.