Article
Unraid Data Recovery: An Overview
Unraid is a proprietary operating system that stores complete files on individual disks; it doesn’t stripe them, as is typical with RAID…
R&D
Guides, research, and lab notes from the Datarecovery.com laboratories
Data Loss Prevention
Recovering Data from Dell PowerEdge Foreign Configuration Errors
The Foreign Configuration alert in the PERC (PowerEdge RAID Controller) BIOS or OpenManage interface indicates that the metadata on one or more…
Data Loss Prevention
No Bootable Device Found: Troubleshooting and Data Recovery
A No Bootable Device Found error means your computer’s BIOS or UEFI (the firmware that starts your hardware) cannot locate an operating…
Article
How to Fix a “Checking File System on C:” Loop That Never Finishes
Windows will issue a “checking file system” message when it encounters errors that prevent it from accessing your data; if you’re stuck…
Data Recovery Knowledge
“Semaphore Timeout Period Has Expired”: What It Means
The “Semaphore timeout period has expired” error (System Error 121) occurs when your computer attempts to transfer data to or from an…
Data Recovery Knowledge
How Do You Fix Error Code 0xc000000e at Startup?
Error Code 0xc000000e is a Windows Boot Manager message indicating that the operating system cannot locate the files required to start the…
Data Loss Prevention
What Does “A device which does not exist was specified” Mean?
A device which does not exist was specified is a critical Windows error that occurs when the operating system loses its hardware…
Data Loss Prevention
“The Parameter Is Incorrect” On Windows: Error 0x80070057 Explained
“The parameter is incorrect” (Error 0x80070057) indicates that Windows can’t access a device, or that key system files are corrupt. Learn more.
NAS
Why Choose RAID 6 Over RAID 5?
You’ve decided to use RAID, but you’re not sure why RAID 5 is the most popular choice for home users and small…
Data Recovery Knowledge
RAID 6 Data Recovery: Challenges and Keys
While RAID 6 offers higher fault tolerance than RAID 5, its error correction system creates unique challenges when multiple drives fail or…
Data Recovery Knowledge
Data Recovery Scams (And How to Avoid Them)
You need to recover files from a hard drive, solid-state drive (SSD), USB stick, RAID array, or some other type of storage…
Data Recovery Knowledge
Ghost Partitions: Hard Drive Shows Full Capacity As Unallocated Space
A drive showing its full capacity as Unallocated Space despite containing files moments before indicates a failure of the partition table or…
Data Recovery Knowledge
Data Recovery Terminology: What Is Stiction?
In the process of a data recovery evaluation, you might hear that your device has stiction. Stiction occurs when the read/write heads…
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