From mboxrd@z Thu Jan  1 00:00:00 1970
From: AJ Lewis <aj@terrascale.com>
Subject: Re: Next set of device-mapper  patches
Date: Wed, 21 Jun 2006 08:07:15 -0500
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On Wed, Jun 21, 2006 at 01:44:15PM +0200, Milan Broz wrote:
> ioctl patch simple route ioctls to underlying block device
> -> it supports all ioctl which are supported by your physical device.
>=20
> e.g.
> in simple case you have volume /dev/mapper/VolGroup00-LogVol0
> mapped to physical device /dev/sda, inquiry ioctl (using tools from=20
> sg3_util)
> sg_inq /dev/sda  =20
> 	is the same as
> sg_inq /dev/mapper/VolGroup00-LogVol0
>=20
> In the case of multipath target ioctl command is sent through
> active path.

So what happens when you have multiple block devices in the volume?  And wh=
at
if those block devices have different levels of support for the ioctls?
=20
--
AJ Lewis=20

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