SLES11 SP2 XEN VM install fails on a fc san multipath device
- two xen servers sles11 sp2 and HA-EXT
- both attached to an ibm fibre channel ds4300 san storage with two controller (active/passive)
- multipathing is configured
- on both servers we have the same san luns:
When I start the installation via the vm-install command the domu is going active and starts the installation on the san volume. After the first reboot during the installation the domu is reading the kernel and the initrd but the domu is not able to access the xvda device (the configured san volume).
What I found out:
After the first reboot during the installation of the vm, the partitioning of the multipath device comes viewable on the dom0 server, then the domu cannot access to this device any more.
When I remove the partitioning on the dom0 server with the following command:
I can continue the installation of the vm with a new reboot. When the new vm is active and I will call the partprobe command on the dom0 server the partitioning of the vm will not be viewable. When I shutdown the vm and call again the partprobe command on the dom0 server, the partitioning comes viewable but the vm will not start again.