Re: userspace block driver?

Lars Marowsky-Bree
2005-11-09T10:12:52Z

On 2005-11-09T08:54:56, Jens Axboe <axboe@suse.de> 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...

Sincerely,
Lars Marowsky-Brée <lmb@suse.de>

--
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"