Mac – Is it safe to eject the timemachine backup whilst its decrypting


I encrypted my Time Machine backup (A Western Digital 2tb external drive) then realised that Airport wont mount the backup over wifi, so am currently decrypting the drive (via Disk Utility).

I found the command:

diskutil cs list

which shows me the progress of the operation (it took a while to register at the under the the menu-bar icon).

Here's a snippet from the output:

    Sequence:               13
    Encryption Status:      Unlocked
    Encryption Type:        None
    Encryption Context:     Present
    Conversion Status:      Converting
    Has Encrypted Extents:  Yes
    Conversion Direction:   backward

Encrypting the backup took about 24 hours, and the time machine icon currently shows 'Decryptig Backup Disk (28%)'.

My question is: can I eject the drive without losing the backup? Will the decryption continue when I mount the drive again?

TIA, Tim

Best Answer

I had to leave, so took a punt and ejected my drive. Timemachine took up where it left off when I remounted the drive, no problems!