====== Live migration project ======

The purpose of this project was to be able to move a virtual server from one system to another system with out having to shut it down.\\ 
Setup three server 

Frosty.student.lab, ip 10.80.3.230 xen server and nfs client \\
Purple.student.lab, ip 10.80.3.231 xen server and nfs client \\
Mellow.student.lab  ip 10.80.3.232 NFS server and holder of the afs virtual disk 

 
Step 1 Using procedure [[user:jbrant:csit1320:project1|Vertual Server Install]] to build two virtual xen server.  (Frosty and Purple) 
 
Step 2. Build a third server [[user:jbrant:csit1320:project2|Desk Top Install]] do not install gnome. (Mellow) 

Step 3 Install nfs on Mellow using procedure [[user:jbrant:csit1320:nfs_install|]] 

Step 4 Create the virtual disk for the afs partition the process for the can be found in the first section of the afs_install procedure [[user:jbrant:csit1320:afs_install:]] \\

Step 5. I then logged on to vmserver02 and did the following 

cd /xen

scp conf/vm14.cfg root@10.80.3.230:/xen \\
scp conf/vm15.cfg root.@10.80.3.230:/xen \\
scp conf/vm16.cfg root.@10.80.3.230:/xen

This copied vm14 vm15 and vm16 to the nfs space on 10.80.3.232

Step 6.Login to 10.80.3.230 (Frosty.student.lab) and  following the section called launching your VM outline in [[ http://lab46.corning-cc.edu/haas/hpc0/projects/creating_virtual_machines]] \\
do a xm create -c /xen/conf/vm14.cfg \\
once the vm is booted  using a ctrl-] to detach 

repeat the process, this time starting vm15 \\
**xm create -c /xen/conf/vm15.cfg** \\
ctrl-]

Step 7. Login to 10.80.3.231(Purple.student.lab) repeat the process used for starting vm14 and 15 only we will be starting vm16 \\
**xm create -c /xen/conf/vm16.cfg** \\
ctrl-]

At this point the afs cell should be up and running as if it was still on vmserver02.student.lab.

The next step  test the ojective of the whole project.

Step 8. Login to 10.80.3.230(Mellow), this is the system we will migrate vm16 to from 10.80.3.231(Purple)\\
**xm migrate --live vm16 Purple**

If you want to verify that this is a live magration you could have open another terminal window and started a ping of vm16.student.lab and saw the there was only a small lag in packets as the switch occurred. Not long enough that any user logged on to vm16 would have noticed it.