From: Akira Hayakawa <ruby.wktk@gmail.com>
To: dm-devel@redhat.com
Subject: Re: How dm multipath handle IO
Date: Fri, 14 Mar 2014 18:12:05 +0900 [thread overview]
Message-ID: <5322C7E5.8020000@gmail.com> (raw)
In-Reply-To: <CAO5znatnsF_x=-EOKHpezw0M4QNZ5KXiawEGKQ7hkXMCwfQy2Q@mail.gmail.com>
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
>
>
> --
> dm-devel mailing list
> dm-devel@redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel
>
next prev parent reply other threads:[~2014-03-14 9:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 8:44 How dm multipath handle IO Nicolas Michel
2014-03-14 9:12 ` Akira Hayakawa [this message]
2014-03-20 6:26 ` Nicolas Michel
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