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Re: How long will this take?

# cat /proc/24283/fdinfo/1
pos: 877106917376
flags: 0100001
mnt_id: 21

Is that in bytes?

stdin and stderr both show a position of zero.


-------- Original Message --------
On Jun 8, 2020, 1:32 PM, Nicolas George < george@nsup.org> wrote:

Matthew Campbell (12020-06-08): > I bought a new 4 terrabyte hard drive that is connected with a USB > cable using USB2. It took about 32 hours to read every sector on the > drive to look for bad sectors. I started blanking the sectors using > /dev/zero last Friday night. It still isn't done. Is there a way I can > find out how much data a particular process has written to the disk? > I'm using Debian 10.4. Sending a USR1 signal to a running 'dd' process makes it print I/O sta‐ tistics to standard error and then resume copying. Fron dd(1). Also, you can go read /proc/$(pidof dd)/fdinfo, it contains the information too. Note that it becomes much slower as it nears the center of the disk. Regards, -- Nicolas George
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