XEN and Cluster Questions

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hello,
we are currently discussing XEN with clustering support. 
There came some questions we are not sure what the answer is. Perhaps you can 
help ;-) .

Background is: We are discussing a group of XEN Dom0 Hosts sharing all devices 
and files via GFS. They themselves again host a couple of virtually 
redhat-clustered DomU Hosts with or without gfs.

1. Live Migration of cluster DomU nodes:
When I live migrate a virtual DomU clusternode to another DOM0 XEN Host the 
migration works ;-) , but the virtual clusternode is thrown out of the 
cluster. Is this a "works as designed"? I think the problem are the 
heartbeats not coming in proper time.
Does that lead to the conclusion that one cannot live migrate cluster nodes?

2. Fencing:
How about fencing of the virtual Dom-U Clusternodes. You are never sure on 
which Dom-0 Node runs our Dom-U Clusternode. Is the fencing via fence_xvm[d] 
supported on such an environment? That means how does a virtual DomU 
clusternode X running on Dom0 Xen Host x know that if virtual DomU 
clusternode Y running on Dom0 Xen Host y is running there when it is getting 
the fence request to fence Host y where it is running?

Thanks Marc.
-- 
Gruss / Regards,

Marc Grimme
http://www.atix.de/               http://www.open-sharedroot.org/

--
Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster

[Index of Archives]     [Corosync Cluster Engine]     [GFS]     [Linux Virtualization]     [Centos Virtualization]     [Centos]     [Linux RAID]     [Fedora Users]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite Camping]

  Powered by Linux