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Re: pen-drive write cache turning off



2005. március 29. 20:17,
Jacob S <stormspotter@6Texans.net> 
-> debian-user@lists.debian.org,:
> On Tue, 29 Mar 2005 20:06:48 +0200
>
> LeVA <leva@az.isten.hu> wrote:
> > Hi!
> >
> > I'm using linux kernel 2.6.11.6, and I have a pendrive (usb 1.0, the
> > slower  one ;). When I copy stuff to it, or delete stuff from it, it
> > happens quickly.  But after I umount it, my cpu usage is getting high,
> > and I can see on my  pendrive's led, that my system is now performing
> > the read/write transactions. My question is: can I control this write
> > cache thru some /proc file, or with  command line, or mount option, or
> > kernel .config variable, or that's just the  way it is, and I have to
> > wait minutes after umounting my pendrive, so I can  disconnect it?
>
> Use the 'sync' mount option. A couple examples:
>
> "mount -o sync /dev/sdx1 /mnt/pendrive"
>
> (in /etc/fstab)
> /dev/sdx1     /mnt/pendrive   auto    noauto,sync  0  0
>
> Note that this will make it seem like the file copies take a lot longer.
> But this is just because it's doing the real work now, instead of later.
Thanks! This is working!

Daniel


-- 
LeVA



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