Re: [Xen-users] Problem iscsi on domU

[Lino Moragon <lino.moragon@xxxxxxxxxxxx>]

Todd Deshane wrote:
> On Tue, Jul 1, 2008 at 2:36 AM, Lino Moragon 
> <lino.moragon@xxxxxxxxxxxx <mailto:lino.moragon@xxxxxxxxxxxx>> wrote:
>     Todd Deshane wrote:
>
>
>
>         On Mon, Jun 30, 2008 at 5:46 AM, Lino Moragon
>         <lino.moragon@xxxxxxxxxxxx <mailto:lino.moragon@xxxxxxxxxxxx>
>         <mailto:lino.moragon@xxxxxxxxxxxx
>         <mailto:lino.moragon@xxxxxxxxxxxx>>> wrote:
>
>            Hi list,
>
>            I'm having troubles to get an iscsi initiator working on a
>         domU.
>            As dom0 and domU I use a Centos 5 with the 2.6.18-53.1.14.el5
>            xen-kernel.
>            As iscsi initiator i use the iscsi-initiator-utils of the
>         Centos5
>            repo.
>            The problem is, that when I log in to my iscsi target on
>         the domU
>            it is recognized as /dev/sda1.
>            Now sda1 is also my root partition on the domU. And when I
>         mount
>            it I've mounted the root partition and not the iscsi device.
>
>            Has anyone had this problem yet? Is there a solution to make it
>            recognized as e.g. /dev/sdb ?
>
>            Any help and tips would be appreciated.
>
>
>         You should be able to setup a udev rule that will recognize
>         the drives and correctly set them up.
>
>         take a look here:
>         http://www.performancemagic.com/iscsi-xen-howto/iSCSI.html
>
>     Hi,
>
>     Thanks for your response. I just tried it that way.
>     Only problem is, that it creates a link that links to the same
>     /dev/sda1.
>     So if I mount the new /dev/iscsi_11 device it will mount again the
>     root filesystem.
>     Are there other possible options? Or isn't it at all possible?
>
>
> Take a look at:
> /dev/disk/by-uuid/
If I look at by-uuid i only get my "real" scsi device:
lrwxrwxrwx 1 root root 10 Jul  2 08:49 
efd01d87-9b04-4d65-976c-cea045f51137 -> ../../sda1
Also for the by-id:
lrwxrwxrwx 1 root root 10 Jul  2 08:49 
efd01d87-9b04-4d65-976c-cea045f51137 -> ../../sda1
And for the path there is my iscsi entry:
lrwxrwxrwx 1 root root 10 Jul  2 08:50 
ip-172.16.10.70:3260-iscsi-iqn.1994-05.com.redhat:storage.mysql-part1 -> 
../../sda1
But it is also linked to sda1 ... Problem is that udev doesn't seem to 
create a "new" block device like sdb...
Any ideas?

Thanks, Lino

>  
>
>     Thanks for some hints.
>
>     Regards, Lino
>
>
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