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SubjectRe: userspace block driver?
On 2005-11-09T08:54:56, Jens Axboe <> wrote:

> > >>Has anybody put any thought towards how a userspace block driver
> > >>would work?
> I was going to say drbd, but then you did say more lightweight :-)

drbd is implemented all in-kernel, too.

The deadlock scenarios with running block IO through user-space are
still somewhat unsolved, though. Not that block over network IO (in
particular TCP) is much better even when implemented in-kernel...

Lars Marowsky-Brée <>

High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX Products GmbH - A Novell Business -- Charles Darwin
"Ignorance more frequently begets confidence than does knowledge"

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