RE: What can be used instead of /dev/disk/by-path/* symlinks?

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On Tuesday, December 17, 2013 10:41 AM Neil Brown (neilb@xxxxxxx) wrote:
> On Tue, 17 Dec 2013 09:10:44 +0000 "Dorau, Lukasz" <lukasz.dorau@xxxxxxxxx>
> wrote:
> 
[...]
> Personally, I really don't care.  Does anyone know what udev changed?  Maybe
> we should ask udev developers to change it back.
> 
> NeilBrown
> 

udev developers wrote:
http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-path_id.c#n378

        /*
         * We do not support the ATA transport class, it uses global counters
         * to name the ata devices which numbers spread across multiple
         * controllers.
         *
         * The real link numbers are not exported. Also, possible chains of ports
         * behind port multipliers cannot be composed that way.
         *
         * Until all that is solved at the kernel level, there are no by-path/
         * links for ATA devices.
         */

Lukasz

> >
> > The /dev/disk/by-path/* symlinks are not created for ATA devices in systems using
> systemd v182+, so mdadm cannot use them in case of policies and udev rules
> (mdadm -If --path=...)
> >
> > What do you think - what should be used instead? The symlinks from /sys/block/* ?
> >
> > Regards,
> > Lukasz
> > --
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