Bug 765439 (GLUSTER-3707)

Set-up:- 
1) Create a Replicate Volume with count 2 on the Server
2) Start the replicate volume
3) Create a mount point /vm on the Dom0
4) Mount the replicate volume on /vm of the Dom0

Execution:-
Step1:-
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1) check the md5sum of the VM image file(GuestOS) on each brick
2) Check the extended attributes of the image file on each brick

The md5sum and extended attributes of the VM image file are same.

Step2:-
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3) Bring down brick2 (Only brick1 is up)
4) Start VM(guest OS)
5) Perform dd of 1GB file
6) dd successfully complete
7) Shutdown VM
8) Brick2 is brought alive
9) Self-heal triggered immediately
10) Brick1 is brought down
11) Volume met split-brain condition
12) Start the VM (Brick1 is down and Brick2 is up)
13) Unable to start VM ( Expected and works fine)
14) Force Shutdown the VM. 
15) Bring down Brick2 (Both Brick1 and Brick2 is down)
16) Bring back Brick1
17) Start VM(Guest OS start successful) 
18) Perform IO Operations (IO operations successful)
19) Shutdown VM
20) Brick1 is brought down completely
21) Only Brick2 is brought up (no self-heal triggered)
22) Start VM
23) Successfully able to Start (UN-EXPECTED Behaviour since split-brain condition was already met)

The details of the test cases and scree snapshot of errors has been recorded in the following document. 

https://docs.google.com/spreadsheet/ccc?key=0AlvBPsMsaL6edF96UmVxY3ZuYUZheWd0bGREcVN3VWc&hl=en_US&pli=1#gid=4