What is Backing device used for?

[rohan puri]

On Sun, Dec 4, 2011 at 9:50 PM, Mulyadi Santosa
<mulyadi.santosa at gmail.com>wrote:

> On Sun, Dec 4, 2011 at 18:22, loody <miloody at gmail.com> wrote:
> > Dear all:
> > Is there any document which explain what "backing device" used for?
>
> such as "backing block device" in caching?
>
> --
> regards,
>
> Mulyadi Santosa
> Freelance Linux trainer and consultant
>
> blog: the-hydra.blogspot.com
> training: mulyaditraining.blogspot.com
>
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Backing device in linux is a block device.

Regards,
Rohan Puri
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