This is a redundant File system - redundant as in it can repair itself which is not good news for eraser type applications. Free space erase should in theory still work as it fills up the disk to the max and then zerofills the files.
We will do some experiments when time permits.
I suggest install wireshark or fiddler and trace this. Eraser only ever checks the internet for updates or crash submisson reports.
Also check that the eraser.exe is digitally signed - right click and check certificates
>>it only erased the new version but not the old version which is still on disk in plain text.
Eraser only erases what it is told to erase. For temp files or deleted shadow copies we have the freespace erase option.
The NAS will not act as a standard file storage. Erasing freespace may not guarantee you erase the data on all individual disks in the NAS array. Your best option is to use something like truecrypt/veracryprt on the NAS as a container and erase that.
What happens if you reboot - is the mapping...
There are just too many variables to get an accurate estimate. you can get an initial estimate, then some windows process kicks off and doubles the time.
DBAN has the advantage in that it boots up in its own OS, thus is the only app accessing the disk.
When EFS encrypts a file, it copies its contents into a temporary hidden file. It then encrypts by blocks and writes the encrypted data into the original file. After the process is done, the temporary file is deleted. To guarantee erasure of the file you need to wipe the freespace and the file...
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