update

README.md

@@ -2,6 +2,11 @@
 ---------------------------
 Rails 4 implementation of the awesome [Gentelella](https://github.com/puikinsh/gentelella) Bootstrap admin template.
 
+Requirement:
+ 1. ruby(2.2.3)
+ 2. rails
+ 3. sshpass
+
 Setup:
  1. Clone this repo :  git clone
     https://github.com/iogbole/gentelella_on_rails.git

app/controllers/volumn_controller.rb

@@ -3,20 +3,24 @@ class VolumnController < ApplicationController
     @volumes = Array.new
     volume = Hash.new
     i = 0
-    output = get_info.split("\n")
-    for t in 1..(output.length-1)
-       if output[t].include? ":" 
-         temp = output[t].split(":")
-         
-         volume[temp[0]] = temp[1]
-       else  
-         @volumes[i] = volume
-         volume = Hash.new
-         i+=1
-       end
+    
+    if get_info.blank?
+      flash[:danger] = "Check Server"
+    else
+      output = get_info.split("\n")
+      for t in 1..(output.length-1)
+         if output[t].include? ":" 
+           temp = output[t].split(":")
+           volume[temp[0]] = temp[1]
+         else  
+           @volumes[i] = volume
+           volume = Hash.new
+           i+=1
+         end
+      end
+      @volumes[i] = volume
+      puts @volumes
     end
-    @volumes[i] = volume
-    puts @volumes
   end
 
   def get_info