On 06/11/2020 12:44, Jim GM4 DHJ ... wrote:
On 06/11/2020 12:41, GB wrote:
On 06/11/2020 12:22, Jim GM4 DHJ ... wrote:
I have all my stuff on a 1tb external drive....yesterday I bought
another to back it up...doing it at the moment and it says it will
take three and a half hours is this correct or is there a quicker way
of transferring ?


Don't you just hate it when people give so many details of their
computer setup, the types of drive, how they are connected, etc?

it is transferring at 12mb/s

So you have :
______ USB __ USB ______
|Drive1|-----|PC|-----|Drive2|

And are doing a naive physical file copy rather than some sort of smart
backup software with compression?

You would be better off with one drive inside the PC on a properly fast
SATA interface. USB3 drives can muster a fair bit of speed but if the
drive is stuck on a USB2 port then it will be throttled back.

Sounds like it is on USB2 and the controller isn't the greatest. It
could also be that the new drive doesn't have the optimum format for
fastest possible operation. I see that a lot with USB drives.

You often cannot obtain their published speed with the backwards
compatible format that they are typically shipped with.

Fast solid state 256GB USB thumbnail drives are now cheap enough to use
for backups on a grandfather, father, son basis.

--
Regards,
Martin Brown