Re: System locks up while moving file
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On Sun, Jun 25, 2017 at 07:54:17PM +1000, John Elliot V wrote:
> Hey there. Maybe someone can help me with this.
>
> I'm running Debian 9.0 (stretch). I have a few scripts which
> periodically create and then move a file from my 1TB M.2 drive to a MD
> RAID1 device comprised of 2x 6TB Seagate IronWolf drives. Full details
> are here [1].
[...]
> There seems to be plenty of RAM available, and plenty of CPU. So must be
> some I/O thing..? Anyway, I'm a bit stumped. I haven't tried running the
> mv command with nice, because it doesn't seem to be a CPU thing... but
You might try to play around with ionice. Something along the lines of
ionice -c 3 mv /this/path /that/path
This would start the mv in the "idle" class (3), meaning it gets the
I/O breadcrumbs other processes leave on the table. More or less.
All of course untested. Consult the man page and move your pets to
a safe place first :)
Cheers
- -- tomás
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