VMFS Recovery

Recovers data from ESX server

Data Recovery Challenges and Complexity in VMFS

Accessing and recovering data from VMFS (Virtual Machine File System) presents significant challenges, especially when dealing with fragmented VMDK files. Many data recovery tools claim VMFS recovery capabilities, but their methods often fall short. Instead of properly accessing VMFS contents and fragmented VMDK files, competitors typically identify a starting point on disk and attempt recovery as if the file were intact, leading to corrupted data and operational delays in most cases.

In production environments, VMFS volumes often host multiple virtual machines (VMs), causing VMDK files to become fragmented as they dynamically expand and contract. This fragmentation increases drastically when using "thin provisioned disks," a common technology that optimizes disk resources by sharing them across VMs.

Competitors struggle with these complexities, particularly in reconstructing VMDK files accurately from scattered fragments within VMFS volumes. Diskinternals VMFS Recovery stands out by meticulously rebuilding these fragmented files, leveraging deep VMFS content analysis to link and recover data effectively.

A step-by-step guide on how to recover and check integrity of the recovered VMDK files

RAID and iSCSI Challenges

Beyond VMFS, enterprise environments typically rely on RAID disks or iSCSI LUNs for storage, enhancing performance and scalability but adding another layer of complexity for data recovery software. Diskinternals VMFS Recovery addresses these challenges seamlessly, supporting damaged RAID arrays, failed RAID members, and iSCSI setups. Surprisingly, only a few competitors offer similar functionalities, highlighting Diskinternals' advanced capabilities in enterprise-grade data recovery.

Step-by-step and video guide on reconstructing a RAID disk

Remote ESX Server recovery via iSCSI

SSH Connectivity

In today's cloud-centric environments, remote access and administration via SSH (Secure Shell) are commonplace. However, the support for SSH-based disk access among recovery tools is surprisingly limited. Diskinternals VMFS Recovery excels here as well, enabling seamless recovery from SSH-accessible volumes, a critical feature for cloud and VMware ESX\ESXi operators relying on secure remote management. Regardless of the fact that the SSH that is slow because of the encryption. There are cases, where it’s the only option for the system administrator to recover data from a remote ESX\ESXi server.

SetUp and recovery from remote ESX Server using SSH(SFTP) protocol

Unique Recovery Features

One of Diskinternals VMFS Recovery's standout features is its ability to reconstruct VMDK files even when VMFS contents are damaged, reinitialized, or quick-formatted. Even in scenarios where vSphere deletes a VMDK file, wiping all traceable segments from VMFS, Diskinternals' proprietary algorithm can detect, determine, and combine hundreds of VMDK fragments into coherent files. This capability is unmatched among competitors, offering substantial recovery potential for VMs running on EXT and NTFS file systems, with ongoing efforts to support additional formats.


While current limitations restrict VMFS Recovery to EXT and NTFS file systems, Diskinternals remains committed to expanding its capabilities to support more formats. This dedication, combined with unparalleled features in VMFS and SSH recovery, positions Diskinternals VMFS Recovery as the premier choice for enterprise-level data recovery solutions.

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