oto

Was able to recover everything using Photorec. As the file was email MBOX folder it was able to extract each email separately which later I joined back as MBOX and indexed. Only one week of emails missing. Seems it worked as Photorec largely ignores filesystem and scanned all free space for file types according to filter.

Recuva always stuck on 52% on one of disks when analysing damage. Disk is healthy trying to recover deleted 24GB file. Debug log [2022-11-18 01:47:07] [INFO ] CNtfsUndeleterImpl::FindFileRecords: Reading MFT [2022-11-18 01:47:07] [INFO ] CNtfsUndeleterImpl::FindFileRecords: Reading files [2022-11-18 01:47:07] [WARN ] LibRecuva::MountedVolumes::GetVolumeHandle: NtOpenFile() failed for \Device\HarddiskVolume4, [2022-11-18 01:47:07] [WARN ] LibRecuva::MountedVolumes::GetVolumeHandle: NtOpenFile() failed for \Device\HarddiskVolume4, [2022-11-18 01:47:07] [WARN ] CheckHResult: (backupComponents->Query()) failed with hresult (0x1) [2022-11-18 01:47:07] [ERROR] LibRecuva::Util::LogBaseException: Base exception: drives.shadowcopy.drivelistfactory.cpp(15) : backupComponents->Query() failed (0x00000000) [2022-11-18 01:47:15] [INFO ] CNtfsUndeleterImpl::FindFileRecords: Rebuilding folders [2022-11-18 01:47:15] [INFO ] CNtfsUndeleterImpl::FindFileRecords: Restoring tree [2022-11-18 01:47:15] [INFO ] LibRecuva::Utils::LogOperationDuration::LogOperationDuration: LibRecuva::Scan::StageAnalyzeDamage::AnalyzeDamage started. [2022-11-18 01:47:15] [INFO ] LibRecuva::Scan::StageAnalyzeDamage::AnalyzeDamage: Analyzing damage of 201798 files. [2022-11-18 01:47:15] [INFO ] CDamageAnalyzer::PerformAnalysis: 33231 deleted files, 168567 filesystem objects [2022-11-18 01:47:17] [INFO ] LibRecuva::Utils::LogOperationDuration::~LogOperationDuration: LibRecuva::Scan::StageAnalyzeDamage::AnalyzeDamage ended. It took 1.419000 seconds. [2022-11-18 01:47:17] [INFO ] LibRecuva::Utils::LogOperationDuration::LogOperationDuration: LibRecuva::Scan::StageAnalyzeDamage::ProcessEmails started. [2022-11-18 01:47:19] [INFO ] CMboxCurrentMessage::CMboxCurrentMessage: mbox: Starting the stream, size 2806522411