Re: [Xen-users] iSCSi on Xen

[Dan Cox <dan@xxxxxxx>]

I'm booting dom0 via PXE with iSCSI root and also the domUs use iSCSI 
root. The latest syslinux is required for booting Xen kernels via PXE.
The most stable iSCSI initiator I've found was Core-iSCSI (see 
http://lwn.net/Articles/163608/) built against the Xen 3.0 release 
kernel sources (don't forget ARCH=xen when building the module!). For 
the target I'm using IET (http://sourceforge.net/projects/iscsitarget/) 
built against the latest FC4 kernel (2.6.14-1.1653). I've been running 
this for some number of weeks and it's pretty solid. Performance is also 
good. In theory, this also means I could migrate the guests around the 
network transparently, but I haven't tested that yet. The only catch 
with the software based iSCSI initiator is I had to roll a highly 
customized initrd which logs into the iSCSI target(s) and in the case of 
dom0 brings up the bridge. I setup the initrd in such a way that I can 
pass kernel parameters to tell domU/dom0 which targets to login to. Hope 
that helps..
Dan-

Ian Pratt wrote:

> > Has anyone been successful in installing and running iSCSI in
> domain0?
>  
>
> > If so, I would like to know your configuration -
> >
> > I'm running xen 3.0 (kernel 2.6.12) and have tried 
> > linux-iscsi 4.x & 5.x, open iscsi and unh-iscsi. Most have 
> > some compile issues, once resolved they will stack dump when 
> > doing some iSCSI operations
> >    
> I used to use linux-iscsi 4.x on xen -unstable just fine, but I haven't
> tried in quite a while. [Some earlier versions did make various dubious
> assumptions that weren't true on xen.]
>
> One option would be to try the xen merge tree which is currently based
> off the 2.6.15-rc6, and hence includes the open iscsi patches.
>
> http://xenbits.xensource.com/ext/linux-2.6-merge.hg
>
> I haven't tried this, but would be interested to hear whether it works,
> and would like  to fix it if it doesn't. 
>
> Ian
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>  

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