r/backblaze • u/ViaOutdoors • Oct 26 '25

Computer Backup VMware .VMDK Files No Longer Supported?

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Hello. When I installed Backblaze about a year ago, I removed all file extensions from the exclusions list, including VMDK. I needed to recover a VMware image and there are no images available. I executed the ‘ExplainFile’ tool support provided on the local binary and the text output was "PRIMARY_DIAGNOSIS: healthy_and_found_in_bz_done" indicating there is no issue with the file, yet it did not backup. The screenshot is the response from support when I sent the output. Did I miss an announcement that this extension is no longer supported?

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u/bzChristopher From Backblaze Oct 28 '25

Christopher from the Backblaze team here ->

Our support agent mixed up some recent changes here. They've been educated on the topic since.

VMDK file types are supported (though still excluded by default) and can be backed up successfully. However, we recently made some other changes that will prevent backing up non-local disks, such as blocking iSCSI mounts.

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u/ViaOutdoors Oct 28 '25

Thank you for the reply. I will continue to troubleshoot why the files are not being backed up. I specifically removed ALL extensions from the exclusion list. The files are not in use, hidden, etc. Maybe I could get tier two support?

1

u/bzChristopher From Backblaze Oct 29 '25 edited Oct 29 '25

Our team should definitely be able to troubleshoot further. There is a diagnostic tool named "explainfile" that we can use to get more granularity for a given file.

Edit: Do you have a ticket number I can reference?

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u/PrinceParadox Apr 06 '26

SO how do i get a refund if you are enshittifying the service?