(NAS) Network Attached Storage Data Recovery

Your Network Attached Storage (NAS) device is an essential element of your network. It stores crucial data for your users. A failure can drastically affect the way your organization operates. If it should fail, our NAS Data Recovery engineers can get your data back.


Successful NAS Data Recovery

While you take precautions to protect your most important files, NAS appliances can fail for dozens of reasons. In some situations, you might not have access to an up-to-date backup. Whether you encounter multiple hard drive failures, hardware malfunctions, or a software issue, we will quickly restore your files.

Mass Data Recovery provides options for all types of NAS appliances. As a leader in professional data recovery, we treat mechanical, electronic, and logical failures quickly and efficiently. Our teams have experience with virtually all failure scenarios and hardware configurations.


Why NAS Drives Fail

There are four general categories for NAS failure: Hardware RAID Failure, Human Error, Software RAID Failure and Application Failure.

NAS Hardware RAID Failure

  • Actuator failure
  • Bad sectors
  • Memory or controller failure/malfunction
  • Corrupted RAID configuration
  • Lightning, flood or fire damage
  • Damaged motor
  • Drive physical abuse
  • RAID hard disk drive (HDD) overheat, failure or crash
  • Head crash
  • Intermittent drive failure
  • Media damage
  • Media surface contamination
  • Multiple drive failure
  • Power spike
  • Power supply burnout or failure
  • RAID controller failure
  • RAID corruption
  • RAID drive incompatibility
  • RAID array failed
  • Vibration damage
  • Damaged connector
  • Power circuit malfunction

NAS Human Error

  • Unintended or accidental deletion of files or records
  • Reformatting of drives/array
  • Reformatting of partitions
  • Incorrect replacement of media components
  • Mistakenly overwritten database files
  • Employee sabotage
  • Lost/forgotten password
  • Overwritten files
  • Overwritten RAID configuration files
  • Overwritten RAID settings
  • RAID incorrect setup
  • RAID user error

NAS Software RAID Failure

  • Backup failures
  • Computer virus or worm
  • Corrupt files/data
  • Damaged files or folders
  • Directory corruption
  • Firmware corruption
  • Repartition
  • Server registry configuration error
  • Missing partitions
  • RAID configuration error
  • Reformatting

NAS Application Failure

  • Applications that are unable to run or load files
  • Corrupted database data or other files
  • Locked databases preventing access
  • Deleted tables


Supported File Systems

We deal with all kinds of file system formats:

  • FAT12
  • FAT16
  • FAT32
  • NTFS
  • Apple Mac OS and its HFS(+) file system.

We also cater to the Linux file systems, ext2, ext3, ext4.
From a single drive to a much larger setup, such as RAID or JBOD, we can handle all of your problematic data situations.


It is evident that there are many factors that may contribute to a hard drive failure. We have outlined only the most common occurrences. If your NAS Drive is experiencing other symptoms, we are still able to help. We pride ourselves in our ability to recover data from any type of failure. We are not limited by the complexity, brand, size, or manufacturer of your hard drive.

What To Do If Your NAS Drive Has Failed
If you suspect that you are in need of NAS Drive Data Recovery, taking certain precautions can dramatically increase the chances of a successful recovery. Continuing to power up a failing hard drive can cause irreversible damage and may result in an unrecoverable hard drive. If your NAS Drive shows symptoms of failure, discontinue use immediately.
Types of Hard Drive Failures

Over time hard drives are bound to fail. There are two main types of hard drive failures. The most common is a logical failure. The second type of failure is a mechanical or physical failure.

Logical Hard Drive Failure

The hard drive’s internal components are functional, but other complications make the data inaccessible. The integrity of the data is compromised and the stored data is damaged in some way. Common causes of logical hard drive failures include accidental formatting or deletion of files, corrupt or missing partitions, operating system errors, a corrupt file system, or a computer virus.

Mechanical Hard Drive Failure

Hard drives contain internal moving parts. When a mechanical or physical failure occurs, one or more of the internal components has malfunctioned. The drive may be experiencing difficulty spinning or, in some cases, it may not spin at all. This will result in data that cannot be accessed unless the drive is opened.  This requires a clean room environment where the hard drive can be rebuilt mechanically. Common causes of mechanical hard drive failures include head crashes, alignment issues, a broken motor, or spindle problems.

What to expect

The initial evaluation usually takes between 1-3 business days depending on the extent of the damage. Upon completion of the evaluation, you will receive an exact quote for the recovery.  We will also provide you with the estimated time to completion and probable success rate. You can stop by anytime.  An appointment is not required.

Level 1 Data Recovery

Level one NAS Drive Data Recovery is when your hard drive is working properly but there is other damage to the computer.  This prevents you from accessing your data. For example, you spilled liquid on the computer and it no longer turns on. As long as the drive wasn’t damaged by the liquid, this would qualify as a level one recovery.

Level one recoveries are usually completed within 2 business days. This often requires complete disassembly of your machine in order to gain access to the drive. Once the drive is removed, it will be tested to confirm that a level one recovery is possible. If so, we will transfer all of the data to the media of your choice. The more data there is on the drive, the longer the transfer will take.

Level 2 Data Recovery

Level two NAS Drive Data Recovery is where about 80% of our clients fall.  In this case, the drive has started to fail but has not yet suffered a catastrophic failure. If the computer powers on but does not boot, hangs, or flashes a folder icon then it may qualify for a level two recovery. However, not all drives with these symptoms will be recoverable using these techniques.

We are usually able to extract the data from the failing drives using specialized level two recovery tools. Failing drives are very delicate and must be handled properly. A level 2 recovery attempts to recover as much data as possible before the drive suffers a complete failure. Upon completion, you will be able to review the recovered data and confirm that it has been recovered to your complete satisfaction. If you are not satisfied, there is no charge for the attempt.

Level 3 Data Recovery

About 15% of our customers have no other option aside from a level three NAS Drive Data Recovery. This is the last resort when dealing with severely damaged drives. It can also be used as a safer alternative to level two methods. At this level, the drive is sent into our clean room laboratory for extensive reconstructive work. The parts inside of a hard drive are incredibly delicate and can be easily destroyed with one wrong move. These recoveries can be considered the equivalent to open heart surgery.  They are very complex and require great skill and precision.

Before files can be restored, the drive must be disassembled and repaired. This must be done in a special environment in order to prevent damage to the data. A Class 100 clean room is necessary to safely complete a level 3 repair. Exact matching donor drives must be used to restore the patient drive. Once the data can be read properly, the file system reconstruction can begin. Depending on the extent of the damage, we can often recover all or most of the data.

What is the price of the recovery based on?
Although many factors determine the cost of data recovery, it is based primarily on the level of damage to the hard drive.  Detailed reconstruction is often required to get the drive back to a point where the data can be read properly. Once the drive has been rebuilt, successfully extracting the data is the easiest part! Whether its one file or a million files, the work required to get a drive operational is the same. As such, the amount of data usually doesn’t affect the price.

Mass Data Recovery uses a Class 100 clean room for hard drive data recovery.
A Class 100 rating means that the company has followed federal standards for air quality control. For more information on our clean room, click here.

For more information about NAS Drive Data Recovery & pricing, just give us a call.
CALL: (781) 381-0008

For directions and service center hours, click here.