xen discuss - Sep 2009 - [Fwd: Shared Storage in xVM Opensolaris build 122]

Hi,

I double checked the configuration with xm and the "w!" option seems
to
be configured :-(
I also upgraded to build 123, but also no change in behaviour. Thus is 
this a RAC 11.2
problem or is there a general problem using zvols as as shared disks for 
xVM domains ?

    (device
        (vbd
            (protocol x86_64-abi)
            (uuid 048d282d-da4c-2e0b-b9f4-f3f4cc0811c7)
            (dev xvdc:disk)
            (uname phy:/dev/zvol/dsk/rpool/export/xvm/asm1)
            (mode ''w!'')
            (backend 0)
            (bootable 0)
            (VDI )
        )
    )
    (device
        (vbd
            (protocol x86_64-abi)
            (uuid 078a81f8-76f3-cb82-ab43-91169ff7d4b7)
            (dev xvdd:disk)
            (uname phy:/dev/zvol/dsk/rpool/export/xvm/asm2)
            (mode ''w!'')
            (backend 0)
            (bootable 0)
            (VDI )
        )
    )

On Sat, Sep 19, 2009 at 07:43:52PM +0200, Marc Neitzner wrote:
> problem or is there a general problem using zvols as as shared disks for 
> xVM domains ?
You can''t share the same storage on a single machine with xVM, it has
to
be exclusive to a given domU

regards
john

Hi !

In this case I wonder why my setup is working I''ve two Linux domU on my
Solaris box which
share a zvol ("w!" or "shareable"). The Oracle 11.2
clusterware seems to
work properly so far
an I also setup an ACFS filesystem on this zvol which is currently 
mounted and accessable
on both domU ....

Best regards, Marc

John Levon schrieb:
> On Sat, Sep 19, 2009 at 07:43:52PM +0200, Marc Neitzner wrote:
>
>   
>> problem or is there a general problem using zvols as as shared disks
for
>> xVM domains ?
>>     
>
> You can''t share the same storage on a single machine with xVM, it
has to
> be exclusive to a given domU
>
> regards
> john
>