Wonderfull. Thank you. I did google it but never found that doc ;)
2014-03-14 10:12 GMT+01:00 Akira Hayakawa <ruby.wktk@xxxxxxxxx>:
Hi,
Let's google it.
Is this the article you are looking for?
https://www.kernel.org/doc/ols/2007/ols2007v2-pages-235-244.pdf
--
Akira
> --
On 3/14/14 5:44 PM, Nicolas Michel wrote:
> Hello Guys,
>
> It's a general question about how dm and particularly multipathd handle IO? I mean, is it a transaction? Is each IO initiated from the OS get back an acknowledgement? If it is, is there a retry mechanism?
> Or are the IO sent blindingly to the block device?
>
> If someone have some good article on it, I would be very interested in understanding more deeply how IO are handled.
>
> Thanks a lot,
>
> --
> Nicolas MICHEL
>
>
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