Need RAID Data Recovery?

Suspect a RAID Array crash?

If you suspect data loss in a RAID array the safest option is to contact an experienced RAID data restore/ recovery specialist at Ontrack for an immediate consultation. We recover from all types of RAID levels and support all vendors, media formats and operating systems.

Call +65 6296 5131
for an immediate and free RAID data restore/ recovery consultation.

RAID Data Restore

RAID data recovery

RAID Data Recovery Assistance

We support all vendors, media formats and operating systems with RAID Data Recovery Assistance.

Ontrack engineers have vast knowledge of RAID Array storage technology and can successfully recover data from legacy models to the newest RAID configurations in the market.
We offer a free phone consultation for RAID, NAS, SAN, and Server data loss to:

  • Confirm hardware, RAID configuration, virtualisation software and back up procedure.
  • Assess the data loss situation and possible failure points.
  • Provide tips to prevent further data loss.
  • Assess the possibility of a Remote Data Recovery.
  • Advise on preparations for an In Lab RAID Data Recovery.

Call +65 6296 5131
for an immediate and free data recovery consultation.

We recover data whatever the cause of data loss

Typical RAID failures are caused by component malfunctions (hard drives and controller cards) or operating and application corruptions resulting in inaccessible and/or corrupted data. Ontrack has listed the most common RAID data loss causes.

Procedural mistakes in the aftermath of a malfunction, or a failed RAID data recovery attempt, can increase damage. Ontrack provides tips to avoid typical human errors and explains RAID system failures.
We are experienced in recovering from all RAID levels, including:


Contact us to verify your RAID level and configuration.

We recover data whatever is the cause of data loss

"Ontrack responded quickly to our call for help and also understood that we needed to restore the data quickly to safeguard Accius' reputation. Ontrack really understands the data recovery business and as one of only a few companies with the expertise to recover data from the cloud, Ontrack will be our first port of call should we require their services in future."

Accius® Case Study - Don’t let your cloud burst

Case story Sunrise Resort – Failed RAID

The backups at Sunrise Resort were out of date when both drives in a mirrored RAID physically failed, and the configuration information for another RAID 5 set was completely lost. Yet, this business bounced back overnight after a "follow the sun" RAID recovery by Ontrack Data Recovery engineers.

Contact Kroll Ontrack

Call us +65 6296 5131

Contact our team of experts.

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RAID Data Recovery Tips

If you suspect data loss in a RAID array the best approach is to take a step back and assess:

  1. What caused the data loss?
  2. What are the consequences of a permanent loss of the RAID data?

Attempting to recover a RAID system without an experienced data recovery specialist can put your critical data at further risk. When hardware malfunction is a component of the problem, permanent destruction of data can occur with failed recovery attempts. Furthermore, the actions taken immediately after a RAID failure can have significant effects on the ability to achieve a full recovery of the data involved.

DataRecovery Tips

Succesfull Raid Recovery

Successful RAID Data Recovery

Due to the highly technical nature of RAID recoveries, an important step to take when choosing a data recovery provider is to ensure that the provider has the capacity to take on large and highly complex recovery jobs. Many data recovery providers do not have enough resources or expertise to handle a successful RAID recovery. In most data recovery cases, a first recovery attempt will have the highest success rate. For this reason, hiring an expert in RAID data recovery in the beginning will increase the amount of data recovered.  

RAID Data Loss and Recovery Tips

Volume repair utilities such as CHKDSK, are designed to force file systems into a consistent state. While this can be useful on single drive systems with light corruption, in most cases, inconsistencies in a volume stored on RAID storage are a result of problems at the RAID level (i.e. out-of-sync drives, bad rebuilds etcetera.). Running CHKDSK in these scenarios can cause damaging irreversible changes to the file system structures.
  1. Never replace a failed drive with a drive that was part of a previous RAID system; always zero out the replacement drive before using.
  2. If a drive is making unusual mechanical noises, turn it off immediately and get assistance. Leaving a mechanically failing drive powered on increases the likelihood of further damage, significantly reducing the chances of a full recovery.
  3. Have a valid backup before making hardware or software changes.
  4. Label the drives with their position in a RAID array before removing them from your system.
  5. If a RAID system fails in the middle of a rebuild process, do not run further rebuild attempts.
  6. In a power loss situation with a RAID array, if the file system looks suspicious, is un-mountable, or the data is inaccessible after power is restored, do not run volume repair utilities.

RAID Data Recovery Causes

Ontrack has success in recovering data from virtually all RAID failure scenarios, including:

Raid Human Error

Human error - Reformat, reinstall and volume overwrite. Proprietary tools allow us to rebuild the RAID virtually, mask out the new active data and repair the original underlying volume to access lost data.

DataRecovery Raid Mechanical Issues

Power issues - Power failure/loss, power cycling and power surges can cause significant issues to RAID systems. RAIDs already running in a degraded state are particularly vulnerable, as power issues can cause out-of-sync drives to be reincorporated into the array. In these cases, Ontrack has the tools and expertise to map the data and logically rebuild the RAID in the degraded state, before virtually recreating the out-of-sync drive in order to extract the required data.


Mechanical issues and failed rebuilds - Individual drives in RAID systems are subject to failure, as are any hard drives. Once a RAID is running in a degraded state, the workload of the remaining drives increases significantly, particularly during rebuild processes that require much more intensive read/write activity than that to which a normally functioning RAID is subjected. In many cases, this can lead to further drive failure and subsequent RAID failure. Ontrack has the Clean Room Environment and expertise required to recover data from failed drives, combined with the Logical skills and tools to rebuild and repair File Systems from failed or partially rebuilt RAID systems.

Next steps

Contact Ontrack: +65 6296 5131Get a free assessment of your RAID data loss and recovery options with a Data Services Consultant.
Free phone assessment with data recovery specialistA Data Recovery Engineer will assess the sequence of events leading to data loss, assess the damage and advise of (self) recovery options.
Remote Data Recovery or In Lab Data Recovery                   Dependent on the data loss situation, Ontrack will advise either a remote or in lab data recovery attempt.


Call us +65 6296 5131

Call us today for more information or a free consultation

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Data Loss in Paradise

Case Study Sheet

Case Study

"There wasn’t enough time to wait for couriers so the hard drives were put on a plane with a staff member and flown to Brisbane. Within two hours the client was given confirmation that the data was recoverable."

Can you trust your backups?



Research into use of backups and their reliability was conducted amongst 600 IT professionals who had recently experienced significant data loss.

Data Recovery Capabilities

Info Sheet


Ontrack Data Recovery services offer industry leading solutions to recover data from virtually any type of data storage device. Utilizing a suite of proprietary recovery tools and the most experienced data recovery engineering team in the world, Ontrack Data Recovery is uniquely equipped to solve even the most extreme data loss scenario.

Recovery Guide


Whitepaper - Enterprise Business Data Recovery Guide

Choosing the right data recovery provider can be the deciding factor in whether you will get your lost data back. Scan the Internet for 'data recovery providers' and you’ll find hundreds of options, but before you make a decision, ask yourself the questions below so you can select the provider that offers the highest level of professional service and overall best value.

Recovery Smart Tips

Info Sheet

VMware® Data Loss and Recovery Smart Tips

Tips on How to Safely Recover From VMware Data Loss.

Quick Reference Guide


Ontrack® Data Recovery Quick Reference Guide

Through its Ontrack Data Recovery services, Ontrack offers industry-leading solutions to recover data from virtually any type of data storage device. Utilizing a suite of proprietary recovery tools and the largest, most experienced data recovery engineering team in the world, Ontrack is uniquely equipped to solve even the most extreme data loss scenario.

Virtual Environment

Info Sheet

Data Loss in the Virtual Environment is Very Real

If the drive is making unusual mechanical noises, turn it off immediately and get assistance. Leaving a mechanically failing drive powered on increases the likelihood of further damage.

Virtualized Data Loss


Real Solutions for Virtualized Data Loss

Data loss incidents can be even more destructive when they occur in virtualized environments. Only Ontrack Data Recovery services offer the technology and expertise to recover data from virtual machines and servers.