xen discuss - Oct 2008 - attaching 2nd vol unsupported?

Hi,

im trying to attach another volume aka disk to win HVM, however it
doesn''t seem to work:

+ xm block-attach win2008ss phy:/dev/zvol/dsk/pool1/win2008ss.dsk2 \
	hdd:disk w 0

results in:

elkner.sol ~ > + xm block-list win2008ss --long
(0
    (vbd
        (uuid 7cb8fadf-619d-dde6-bda9-dcc18023c7d5)
        (bootable 1)
        (devid 768)
        (driver paravirtualised)
        (dev hda:disk)
        (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk)
        (mode w)
        (backend 0)
    )
)
(1
    (vbd
        (uuid fbbc4777-3d56-cc87-e7ea-b4cc2ec17ffc)
        (bootable 0)
        (devid 5632)
        (driver paravirtualised)
        (dev hdc:cdrom)
        (uname file:/pool1/isos/win2008_x86.iso)
        (mode r)
        (backend 0)
    )
)
(2
    (vbd
        (uuid 0b7f34c8-2f0a-0f0d-8004-7ebf752035e6)
        (bootable 0)
        (driver paravirtualised)
        (dev hdd:disk)
        (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk2)
        (mode w)
        (backend 0)
    )
)
elkner.sol ~ > + virsh start win2008ss libvir: Xen Daemon error : POST
operation failed: (xend.err ''Device 768 (vbd) could not be connected.
Backend device not found.'')
error: Failed to start domain win2008ss
elkner.sol ~ > + xm block-list win2008ss --long
(0
    (vbd
        (uuid 7cb8fadf-619d-dde6-bda9-dcc18023c7d5)
        (bootable 1)
        (devid 768)
        (driver paravirtualised)
        (dev hda:disk)
        (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk)
        (mode w)
        (backend 0)
    )
)
(1
    (vbd
        (uuid fbbc4777-3d56-cc87-e7ea-b4cc2ec17ffc)
        (bootable 0)
        (devid 5632)
        (driver paravirtualised)
        (dev hdc:cdrom)
        (uname file:/pool1/isos/win2008_x86.iso)
        (mode r)
        (backend 0)
    )
)
(2
    (vbd
        (uuid 0b7f34c8-2f0a-0f0d-8004-7ebf752035e6)
        (bootable 0)
        (devid 5696)
        (driver paravirtualised)
        (dev hdd:disk)
        (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk2)
        (mode w)
        (backend 0)
    )
)


When removing the device (xm block-detach win2008ss 5696), everything
runs fine again.  Any hints, what to do?

Regards,
jel.
-- 
Otto-von-Guericke University     http://www.cs.uni-magdeburg.de/
Department of Computer Science   Geb. 29 R 027, Universitaetsplatz 2
39106 Magdeburg, Germany         Tel: +49 391 67 12768

Hi Jens,

Try modifying the domain''s XML description

virsh dumpxml win2008ss > /tmp/dom
edit /tmp/dom, duplicate disk section and modify disk path
virsh define /tmp/dom



Jens Elkner wrote:
> Hi,
> 
> im trying to attach another volume aka disk to win HVM, however it
> doesn''t seem to work:
> 
> + xm block-attach win2008ss phy:/dev/zvol/dsk/pool1/win2008ss.dsk2 \
> 	hdd:disk w 0
> 
> results in:
> 
> elkner.sol ~ > + xm block-list win2008ss --long
> (0
>     (vbd
>         (uuid 7cb8fadf-619d-dde6-bda9-dcc18023c7d5)
>         (bootable 1)
>         (devid 768)
>         (driver paravirtualised)
>         (dev hda:disk)
>         (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk)
>         (mode w)
>         (backend 0)
>     )
> )
> (1
>     (vbd
>         (uuid fbbc4777-3d56-cc87-e7ea-b4cc2ec17ffc)
>         (bootable 0)
>         (devid 5632)
>         (driver paravirtualised)
>         (dev hdc:cdrom)
>         (uname file:/pool1/isos/win2008_x86.iso)
>         (mode r)
>         (backend 0)
>     )
> )
> (2
>     (vbd
>         (uuid 0b7f34c8-2f0a-0f0d-8004-7ebf752035e6)
>         (bootable 0)
>         (driver paravirtualised)
>         (dev hdd:disk)
>         (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk2)
>         (mode w)
>         (backend 0)
>     )
> )
> elkner.sol ~ > + virsh start win2008ss libvir: Xen Daemon error : POST
> operation failed: (xend.err ''Device 768 (vbd) could not be
connected.
> Backend device not found.'')
> error: Failed to start domain win2008ss
> elkner.sol ~ > + xm block-list win2008ss --long
> (0
>     (vbd
>         (uuid 7cb8fadf-619d-dde6-bda9-dcc18023c7d5)
>         (bootable 1)
>         (devid 768)
>         (driver paravirtualised)
>         (dev hda:disk)
>         (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk)
>         (mode w)
>         (backend 0)
>     )
> )
> (1
>     (vbd
>         (uuid fbbc4777-3d56-cc87-e7ea-b4cc2ec17ffc)
>         (bootable 0)
>         (devid 5632)
>         (driver paravirtualised)
>         (dev hdc:cdrom)
>         (uname file:/pool1/isos/win2008_x86.iso)
>         (mode r)
>         (backend 0)
>     )
> )
> (2
>     (vbd
>         (uuid 0b7f34c8-2f0a-0f0d-8004-7ebf752035e6)
>         (bootable 0)
>         (devid 5696)
>         (driver paravirtualised)
>         (dev hdd:disk)
>         (uname phy:/dev/zvol/dsk/pool1/win2008ss.dsk2)
>         (mode w)
>         (backend 0)
>     )
> )
> 
> 
> When removing the device (xm block-detach win2008ss 5696), everything
> runs fine again.  Any hints, what to do?
> 
> Regards,
> jel.
-- 

-----------------------------------------------------
Russ Blaine | Solaris Kernel | russell.blaine@sun.com