Featured Article

RAID 0 Data Recovery


I need some help with a number of hard drives which are located in a RAID 0 array. Specifically, I am having trouble with a pair of 2 WD hard drives which are not functioning. These drives have a lot of data on, and I need help with recovery. The drives are connected to the RAID 0 configuration, but each time I turn on the array, the disks spin around, and then turn themselves off and on, as the lights on the display show. The BIOS can see the other drives in the RAID array perfectly well; it is only these two causing the problems. I can see the drives in the array, but they are both labelled as uninitialized.


I need some urgent help with a Dell server that has Windows 2003 Server OS fitted. This is connected to a RAID 0 array which contains a series of hard drives. I thought this morning that the drives were all working, but when I try to view them through the Windows Server folder, I can’t find any of the drives. The computer keeps asking me for a location to install the server into, which is odd since it is clearly running. I am not able to select the drives which already have the server installed, because they are not there. I use these drives a lot in order to save information from my computer, and as I work from home this data is relevant to my finances.

RAID 0 Data Recovery

RAID 0 provides data striping without redundancy, meaning that data is written across multiple drives at the same time. For example, if you are writing a file that is a size of 4 GB, 1 GB of data is written across each drive of the RAID 0 system. This type of parallel data reading is great for high performance, but isn’t ideal for the storage of very important data.

RAID 0 is typically seen on very high-end gaming computers, and NAS (Netword Attached Storage) systems used by a lot of small business such as photographers, architects, solicitors etc because of the excellent level of performance provided for the cost of the system.

RAID 0 has no parity, so while it is great for systems requiring the utmost in performance, there is no fault tolerance when this system is used. This means that if a single disk failure occurs, the entire array is destroyed, and the more disks that are contained in the array, the higher the chances for failure.

When data is written to a RAID 0 array, the data is broken into fragments, and the number of fragments is determined by the number of disks located in the drive. Each fragment is written to disks at the same time, in the same sector, which is what leads to the failure of the entire array if one disk fails. Although a higher number of disks found in an array means that a system will have a higher bandwidth, it also raises the chances for failure, which makes the use of RAID 0 a trade-off for many people.

Although reasons vary, some common sources of RAID 0 failure include RAID array or controller failure, lost server registry configuration, accidental reconfiguration of RAID drives, multiple drive failures and replacement of media components that is accidental in nature.

Since RAID 0 has no redundancy, unlike other RAID systems, the recovery of data is particularly tricky. Typically, a professional RAID 0 data recovery service will start with getting the single drive that failed working properly. Since that single drive failure likely caused the failure of the entire system, it’s important that drive be addressed properly at the beginning of the recovery process. After the repair and cloning of the failed drive, the recovery service can then work to extract the data found on the remainder of the array, in its entirety. Many RAID 0 recovery services can work to recover data from systems with a missing disk, but often, only small files can be recovered in this circumstance, and it can lead to the loss of file and directory structures.

When dealing with the failure of a RAID 0 array, it’s advisable to contact a professional data recovery service like ourselves. The process of recovering data from an array without redundancy requires a high level of expertise and a secure, state-of-the-art facility.

Signs that you may be experiencing a failed RAID 0 array include strange mechanical noises, such as clicking and buzzing. If you begin to hear noises that are out of the ordinary, the best course of action is to immediately turn off the raid server and contact a professional raid data recovery service like ourselves. The faster professional action is taken, the more likely your chances of full data recovery.