Hi Ulrich, On 05/06/2011 08:15 AM, Ulrich Windl wrote: > Hello! > > I'm having strange trouble with SLES11 SP1 amd MD RAID1 (mdadm - v3.0.3 (mdadm-3.0.3-0.22.4), 2.6.32.36-0.5-xen): I'm not a Xen user, nor SLES, but I thought I'd poke around for this. [trim /] > Corresponding Syslog messages: > May 4 17:18:54 rksapv01 kernel: [ 231.942241] md: bind<xvdf> > May 4 17:18:54 rksapv01 kernel: [ 231.942265] md: could not bd_claim xvdg. > May 4 17:18:54 rksapv01 kernel: [ 231.942269] md: md_import_device returned > -16 This seems to be the key. I found this thread from XenSource: http://lists.xensource.com/archives/html/xen-users/2010-08/msg00063.html which suggests your guest kernel's configuration doesn't include MD support. In your guest, please show the output of: # zcat /proc/config.gz |grep _MD[=_] Phil -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html