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.
name=Matthew%20Campbell&email=trenix25%40pm.me
-------- 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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