Data Recovery & Information Security Blog

This blog highlights issues in recovering data from various storage devices. We explore opportunities provided by our data recovery algorithms and offer useful tips to prevent data loss. Follow us in social networks and recommend our materials to your friends.

How to recover data from Btrfs RAID 0, RAID 5, and RAID 6 arrays created on Rockstor

Read about data recovery from Btrfs RAID 0, 5 and 6 arrays created in the Rockstor 5.1 operating system based on OpenSUSE Leap. We will analyze scenarios of logical errors, including accidental file deletion via network protocols SMB/CIFS, NFS, SFTP, AFP, or cases where data has been severely corrupted. Special attention will be paid to hardware issues such as drive failures, server hardware or entire NAS failures, as well as Rockstor software faults after updates or accidental system-disk wipes.

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ZFS Data Recovery: A Guide to RAIDZ1, RAIDZ2, RAIDZ3 and Stripe

In this article we review procedures for data recovery from RAIDZ1, RAIDZ2, RAIDZ3 and ZFS Stripe arrays created in the TrueNAS SCALE operating system. We demonstrate the sequence of actions in case of a hardware failure of the server and the methodology for restoring access to the data pool when one or more drives fail or data is accidentally deleted from the array.

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How to recover video files from the Hikvision DS-7608NI recorder on macOS (HikvisionFS)

In this article we will examine how to recover video files from the network video recorder Hikvision DS-7608NI in a macOS environment. We will consider typical data loss scenarios: accidental deletion of individual files or entire folders, hard drive formatting, and corruption of the HikvisionFS file system. We will also separately address situations related to hardware failures — drive failure or malfunction of the recorder itself.

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Data recovery from RAID 5 and RAID 6 arrays created by the PERC 6/i controller on the Dell PowerEdge R610

This article provides a detailed overview of the process for recovering data from RAID 5 and RAID 6 arrays managed by the DELL PERC 6/i controller in a DELL PowerEdge R610 server, as well as what to do in case of server failure or failure of one or more drives, and how to access data if the RAID array becomes unavailable.

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Synology DS418play NAS: data recovery from SHR-2 and SHR-1 RAID arrays

Read about how to recover data from an SHR-2 or SHR array (Synology Hybrid RAID) on a Synology DS418play NAS in a Windows 11 environment. We will review different data loss scenarios: accidental deletion of files or folders, volume formatting, and corruption of the storage structure. You will learn how to act in case of NAS failure or failure of one or more drives, and how to access information if the RAID array becomes unavailable and network shares no longer appear. A separate scenario demonstrates recovering data from a virtual LUN created in DSM.

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