Has your RAID Server or NAS failed? RAID degraded or no longer visible? Not only can we get your data back, we are Sydney's most professional data recovery lab who can!

We have been getting data off failed RAID systems for over 12 years in the greater Sydney NSW area. We keep a detailed journal of every manufacturers secret RAID parameters so your data comes back fast.

We also understand that your RAID or NAS system is running a business and you need your data back fast. We have a 24 hour around the clock emergency service in Sydney so you're back online quicker than anybody notices.

RAID Data Recovery Service for all computer brands and models including:


Drop off or Deliver

Open 9:00am - 5:00pm Monday to Friday. Visit us for a free evaluation or deliver your media.

Zero Alpha
925/100 Walker Street
North Sydney NSW 2060
(02) 8960 4473
1300 001 211

Whats the best advice for RAID data recovery?

FREE raid evaluation from Sydney's best priced professional raid data recovery service.



RAID failure usually occurs when an individual hard drive has failed in the array. When replacing a single failed hard drive there is a high chance that a second drive can fail during the rebuild as this process puts increased stress on the system. So always back up data on the raid while you have the opportunity before you commit to drive replacements. Other raid problems occur when the raid controller itself fails. When this occurs the raid volume is no longer accessible. If this is a case, give our Sydney data recovery office a call and we will help you out.

The basics on how to recover data from failed RAID or NAS

Our Sydney data recovery lab will assess the health of the drives first. We will determine which physical hard drives have failed. Hard Drives can be SATA or SAS. Once we know the condition of each hard drive. We will determine which RAID version and controller is in use. As Sydney's leading RAID recovery service we will then have an action plan to get your files back.

A Sydney data recovery technician uses software to virtually create a failed raid drive

In this image you can see a Zero Alpha data recovery technician re-create a virtual version of an 8 drive raid array without the original computer. Removing drives from the raid system should only be done by our staff. Interfering with a raid array can make a success harder to achieve. If your raid service has failed its best to leave it off and bring the complete unit to our Sydney store. Please leave your drives alone. Our data recovery expert will need to identify the drive order and parameters of the raid. Raid parameters can vary with manufacturers. Our data recovery engineer is highly skilled and experienced at reverse engineering these different algorithmic parameters. RAID is like reassembling a giant mathematical jigsaw puzzle. We will also rescue the data off any failed hard drives. We now have everything we need to save data to new media. This process is also known as destriping in the RAID engineering world.

Network attached storage RAID data recovery

A NAS system which is short for network attached storage is a device that uses RAID and multiple drives to store and share data over a network with multiple computers or laptops. These systems are very popular for home and business computers. They can offer similar performance to a professional raid server. Because they also use RAID technology they experience the same failures. NAS systems usually have 2 ~ 4 drives and can be RAID version 0, 1, 5, 6 & 10. The same principles apply to get data and files from a non function NAS box.

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The 5 Most Common Causes of RAID Failure

1. Failure of the RAID controller

RAID controller is a hardware device or software program used to manage hard disk drives (HDD) in a computer or storage array so they work as a logical unit. The raid controller can fail, due to power surges, end of life or firmware corruption. This can cause boot problems corresponding with LED error lights or no activity at all.

2. Multiple Disk Failure

The purpose of most RAID systems is to allow the server to survive the failure of a single system disk. However its not uncommon for multiple drives to fail within a similar time frame. Drives are usually fitted to the RAID or NAS server from the same manufactured batch. RAID hard drives live a hot and hard life with little rest or maintenance. A failed disk in the system makes the array much more vulnerable to further disk failures and can result in a complete system breakdown. 

3. Degraded RAID Array

If a single disk drive fails the RAID can change status from online to offline or degraded. Backing up data is the first step you should take before replacing a failed drive. Continuing to run your system in degraded mode significantly increases the chances that the array will fail, taking your important files data with it. As the rebuild phase puts a lot of stress on the raid array and we see a lot of failures occur during the RAID rebuild phase. 

4. Server Crash

Failure of the host server for any reason can render an array inaccessible. A lot of raid computers may have a log or reporting interface to tell you what went wrong. Usually red or yellow LED lights flash indicating which drives are no longer accessible. Green and blue LED lights indicate that the drives are functioning ok and are accessible. If the RAID computer server is not booting we can simply remove the drives and re-create the raid server in a virtual environment to recover data.

5. Missing RAID Array Partitions

RAID data structured are organised by hidden settings we call RAID parameters. RAID parameters are responsible for directing the behind the scenes data blocks used to store your data over multiple disks. If this information gets damaged or goes missing the whole raid system will vanish. The partition disks can be corrupted and stop working, causing missing or unusable partitions.

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Data Recovery Sydney
What to do when you Experience a RAID Array Failure

1. Stop using the RAID

When you experience a RAID array failure, it's important that you take the right steps to protect your data. The first thing you should do is turn off the array immediately. The more you run an array in degraded mode, the more likely you are to do further damage. Just leave it off and call us for advice first.

2. Leave the drives in their original bays with original cables

A common experiment unqualified computer shops or technician's make is to try swapping the drives around. This is one of the worst things you can do. If you swap drives out of their original order then the RAID server will start writing data to the wrong drives causing permanent data loss.

3. RAID data recovery should only be performed read only

There is absolutely no reason ever to try changing system settings or worst yet, creating a new raid array to get files back. It doesn't work and makes data recovery harder than it should be.

4. Do-it-yourself data recovery

Repairing a failed disk requires a clean room environment and special tools from disk drive manufactures otherwise the dust in normal atmospheric air can do irreparable damage to the affected disk, and possibly erase your data permanently.

5. Speak to the experts!

Contact our data recovery specialist who have the tools and facilities to properly repair the system in order to retrieve your files. The likelihood of recovering your data varies depending on the cause and severity of the problem, but in most cases, data can be recovered from RAID array failures with professional assistance. If possible, make notes of the events that led to the array failure, including any unusual noises, reductions in processing speed, and any power surges or other physical events that could have damaged the array. Any information you can give your data recovery technician in Sydney will help improve and expedite the repair process.

raid data recovery config utility degraded
This picture shows a RAID config utility in our Sydney data recovery lab in Degraded mode with Status Failed

SAS raid drive data recovery. Making a clicking noise
SAS drives run commercial RAID systems. This picture shows a SAS drive in our Sydney clean room that has been physically destroyed. Known as media damage in the data recovery industry, this drive has scratched the platters into dust. This type of problem will make a clicking sound when powered up.

RAID data recovery Sydney Table of raid parameters
This image is an example of how a RAID will write data in blocks to each drive in the Array with Parity for one drive to fail. Our Sydney data recovery technician is skilled in hexadecimal raid learning to solve raid parameters.

Common RAID Controllers for Data Recovery
  • LSI Logic MegaRAID
  • Dell Perc
  • IBM ServeRAID
  • HP Smart Array
  • Intel RAID controller
  • Tyan Adapters
  • SuperMicro Adapters
  • Cisco
  • Intel
  • Asus Motherboards raid
  • Gigabyte Motherboards raid
Types of RAID Drives

SATA Hard Drives - Seagate, Western Digital, Toshiba, Hitachi. Mounted inside a Tower, Rack mount server or Blade mount server.
SAS - Seagate, Fujitsu, WD, HGST, HPE. These drives are always mounted in a tower, rack mount, or blade mount server.
SCSI Drives - Redundant these days but ocassionally we still get these raid systems in for data recovery from older computers. We have a showcase of old scsi equipment for scsi customers.

Types of RAID Arrays

RAID 0 Data Recovery - Striping - Combines multiple physical drives together to form 1 logical drive.
RAID 1 Data Recovery - Mirror - Makes an exact copy to each physical drive.
RAID 2 Data Recovery which is rarely used, stripes data at the bit (rather than block) level.
RAID 3 Data Recovery - which is rarely used, consists of byte-level striping with a dedicated parity disk.
RAID 4 Data Recovery - consists of block-level striping with a dedicated parity disk.
RAID 5 Data Recovery - consists of block-level striping with distributed parity and has redundancy for 1 drive to physically fail.
RAID 6 Data Recovery - extends RAID 5 by adding another parity block therefore giving redundancy for 2 drives to fail.
RAID 10 Data Recovery - Also known as RAID 1 + 0. is a RAID configuration that combines disk mirroring and disk striping to protect data

Also there are many non standard, propriety and variations of raid that manufacturers produce with computer software or hardware. We can identify these types of raid for data recovery in our Sydney office.

How much does it cost to recovery data from a RAID computer?

You will need to get a free test & quote done first at our Sydney New South Wales office. However price depends on whether the raid needs a software data recovery or a hardware data recovery. Software problems occur when the raids drives are functioning OK but data has been deleted, damaged or corrupted. Hardware problems occur when drives themselves have failed. We can test your raid array and give you a quote in person.

How long does it take to recover data from a failed RAID?

Standard service: 1 ~ 4 weeks
Urgent service: 1 ~ 3 days & expedited parts delivery +$250
Emergency 24 hour service +$395

Can I send a raid data recovery job by courier or Australia post to your Sydney office?

Yes! If you are in NSW or outside of Sydney you can delivery your raid system to us. Just make sure you take the obvious precautions to make sure its boxed safely with tracking information. All delivery drivers know our business as we receive deliveries daily from the Sydney Northshore, Sydney South, Eastern Suburbs & New South Wales region. Because we are the most preferred data recovery company in Sydney then chances are your local IT computer service shop already knows us personally.

Why should I use Zero Alpha Data Recovery Sydney?

 Experience matters! We have been recovering data from RAID professionally for over 12 years.
 We have recovered RAID data for home users, small business and even the largest corporations in Sydney New South Wales.
 We have the worlds most advanced data recovery technology to deal with RAID failures.
 University qualified in computer science.
 We enjoy recovering data from RAID systems more than any other type of data recovery.
 Lowest prices within the professional industry. No blood sucking corporate hierarchy or foreign stake holders.
 100% Aussie owned & operated.
 We give an honest appraisal of your raid server and will explain how we will get your data back during the quote.
 We're not just computer science nerds at Zero Alpha, our team is fun and passionate about what we do.
 First company in Australia to be officially trained in data recovery by Advanced Computer Engineers in Russia.
 After service computer support to make sure your IT department or customers get up and running again.

Ready to start the data recovery process?

Sydney RAID & NAS data recovery service

What are you waiting for? Submit a job and get your data back now!

Step 1: Free test & quote. Walk in or deliver
Step 2: Check your data recovery results
Step 3: Return your data!

For deliveries please use padding and a box.

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