KVM SR: Update readme about resilience.

software/kvm/README.txt

@@ -16,7 +16,7 @@ The following examples list how to request different possible instances of KVM
 Software Release from slap console or command line.
 
 KVM instance (1GB of RAM, 10GB of SSD, one core)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Note that the KVM instance will try to request a frontend slave instance in order
 to be accessible from IPv4.
@@ -32,22 +32,43 @@ to be accessible from IPv4.
 
 See the instance-kvm-input-schema.json file for more instance parameters (cpu-count, ram-size, disk-size, etc).
 
-NBD instance
+
+KVM instance (1GB of RAM, 10GB of SSD, one core)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-This type of instance will allow to host a disk image that will be used by
-any KVM instance.
+Note that the KVM instance will try to request a frontend slave instance in order
+to be accessible from IPv4.
+
+::
+  myawesomekvm = request(
+      software_release=kvm,
+      partition_reference="My awesome KVM",
+      partition_parameter_kw={
+          "nbd-host":"ubuntu-1204.nbd.vifib.net",
+      }
+  )
+
+See the instance-kvm-input-schema.json file for more instance parameters (cpu-count, ram-size, disk-size, etc).
+
+Resilient KVM instance
+~~~~~~~~~~~~~~~~~~~~~
+
+Like KVM instance, but backed-up (with history) in two places.
 
 ::
-  mynbd = request(
+  kvm = 'http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.188:/software/kvm/software.cfg'
+  myresilientkvm = request(
       software_release=kvm,
-      partition_reference="mynbd",
-      software_type="nbd",
+      partition_reference="myresilientkvm",
+      software_type="kvm-resilient",
   )
 
+Then, if you want one of the two clones to takeover, you need to login into
+the hosting machine, go to the partition of the clone, and invoke bin/takeover.
+
 
 KVM Frontend Master Instance (will host all frontend Slave Instances)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This type of instance will allow to host any frontend slave instance requested
 by KVM instances. Slave instances (and thus KVM instance) will be accessible