<%= number_f f, :disk_size_gb,
             {
               :class    => "col-md-2",
               :label    => _("Size (GB)"), :label_size => "col-md-2",
               :required => true,
               :min      => 0,
               :value    => f.object.disk_size_gb || f.object.disk.disk_size_gb,
               :help_inline => _("Additional number of disks can be added based on VM Size. For more details, please refer to Microsoft Azure's documentation")
             }
%>

<%= selectable_f f, :data_disk_caching, options_for_select(["None", "ReadOnly", "ReadWrite"],
                    :selected => f.object.data_disk_caching || f.object.disk.caching),
                 { :include_blank => _("Azure's Default") },
                 {
                     :class    => "col-md-2",
                     :label    => _('Data Disk Caching'),
                     :required => true
                 }
%>