Hello,
 
we are using 
debian, xen 3.x and a iscsi-storage with ext4 as filesystem. Heartbeat is used 
for xen-ha.
Now we like to 
change to xen 4 and remus.
The iscsi SAN is 
available on active-Dom0 and backup-Dom0.
I don´t have to use 
the disk buffering, as I understand remus right, because the file system on both 
machines is the same.
With ext4 we don´t 
had problems at the xen3-Cluster on live migration. Also on tested hardware 
crashes.
 
Is it right to 
disable the disk replication and the remus will work fine for 
ha?
 
Thanks, 
Thomas