Whether your RAID array is damaged by hardware, software, or a combination of both, we offer expert solutions tailored to your situation to safely recover all data from your RAID device.
Have a damaged RAID array and need to recover data? Contact us via our online form or call our 24/7 hotline +420 775 220 440.
DATAHELP specializes in data recovery from various types of RAID arrays. We're ready to help even in cases where the exact array or controller configuration is unknown. Usually we only need the disks themselves, so there's no need to deliver the entire server.
It doesn't matter if your array was hardware, software, or some other type. If you need to recover data from it, before you call us (+420 775 220 440), prepare as much information about your disk array configuration as you can currently determine.
For severe damage, it helps if you can characterize the type of data stored on the array (regular documents, photos, video, or for example accounting). The best protection against data loss is regular backup.
RAID (Redundant Array of Independent Disks) is a technology combining multiple physical disks into one logical volume. Although disk arrays provide a certain level of data protection, they are not a substitute for backup. Failure can occur for many reasons and data recovery requires specialized knowledge and equipment.
The most common cause of array failure is simultaneous failure of multiple disks. In single parity configurations, failure of a second disk during the rebuild process can mean complete data loss. Double parity tolerates two disk failures, but problems can still occur if a third fails during reconstruction.
Another common problem is a degraded array that continues operating with a faulty disk. Users often don't notice warning signs and further failure leads to data loss. Regular monitoring of disk array status and timely replacement of faulty disks is key to prevention.
This configuration distributes data evenly across two or more disks without redundancy. It provides the highest performance, but failure of a single disk means loss of all data. Recovery requires reconstruction of stripe order and size.
Data mirroring on two disks. Failure of one disk doesn't cause data loss, but if both fail, professional recovery is needed. Recovery is usually easier due to complete data copy.
Striping with distributed parity. Requires at least 3 disks and tolerates failure of one. Recovery after two disk failures is complex – requires parity block reconstruction and bad sector repair.
Extension of level 5 with a second parity block, tolerates failure of two disks. Ideal for larger arrays where multiple failure probability is higher. Reconstruction is computationally intensive.
Combination of mirroring and striping – data is first mirrored then striped. Provides high performance and redundancy, but requires at least 4 disks.
Data recovery also depends on controller type. We work with all common controllers:
Most NAS servers use disk arrays for data protection. We specialize in data recovery from these configurations:
NAS storage uses specific file systems (Btrfs, ext4, XFS) and proprietary metadata. Our tools can reconstruct arrays even without the original device.
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Advanced tools for reconstructing virtual RAID arrays from VMware, Hyper-V, and other virtualization platforms.
Specialization in data recovery from network storage devices Synology, QNAP, WD My Cloud and other manufacturers.
Support for modern file systems ZFS and Btrfs used in enterprise NAS solutions.
Data recovery for government, universities and cultural organizations
Ministry of Finance
Government
Czech Railways
State Enterprise
Charles University
University
Czech Technical University
University
National Gallery Prague
Cultural Institution
Czech Academy of Sciences
Research Institution
Contact us at the phone number or email below, place an order for data recovery directly, or visit us in person at our company headquarters.