diff --git a/www/manager6/qemu/HDThrottle.js b/www/manager6/qemu/HDThrottle.js
new file mode 100644
index 00000000..1fcedd91
--- /dev/null
+++ b/www/manager6/qemu/HDThrottle.js
@@ -0,0 +1,211 @@
+// fixme: howto avoid jslint type confusion?
+/*jslint confusion: true */
+Ext.define('PVE.qemu.HDThrottleInputPanel', {
+    extend: 'PVE.panel.InputPanel',
+    alias: 'widget.PVE.qemu.HDThrottleInputPanel',
+
+    insideWizard: false,
+
+    unused: false, // ADD usused disk imaged
+
+    vmconfig: {}, // used to select usused disks
+
+    onGetValues: function(values) {
+	var me = this;
+
+	var confid = me.confid;
+	
+        var names = ['mbps_rd', 'mbps_wr', 'iops_rd', 'iops_wr'];
+        Ext.Array.each(names, function(name) {
+            if (values[name]) {
+                me.drive[name] = values[name];
+            } else {
+                delete me.drive[name];
+            }
+            var burst_name = name + '_max';
+            if (values[burst_name] && values[name]) {
+                me.drive[burst_name] = values[burst_name];
+            } else {
+                delete me.drive[burst_name];
+            }
+        });
+
+	var params = {};
+		
+	params[confid] = PVE.Parser.printQemuDrive(me.drive);
+	
+	return params;	
+    },
+
+    setDrive: function(drive) {
+	var me = this;
+
+	me.drive = drive;
+
+	var values = {};
+
+	values.mbps_rd = drive.mbps_rd;
+	values.mbps_wr = drive.mbps_wr;
+	values.iops_rd = drive.iops_rd;
+	values.iops_wr = drive.iops_wr;
+	values.mbps_rd_max = drive.mbps_rd_max;
+	values.mbps_wr_max = drive.mbps_wr_max;
+	values.iops_rd_max = drive.iops_rd_max;
+	values.iops_wr_max = drive.iops_wr_max;
+
+	me.setValues(values);
+    },
+
+    initComponent : function() {
+	var me = this;
+
+	me.drive = {};
+
+	me.column1 = [];
+	me.column2 = [];
+
+	var width2 = 140;
+
+        me.mbps_rd = Ext.widget('numberfield', {
+            name: 'mbps_rd',
+            minValue: 1,
+            step: 1,
+            fieldLabel: gettext('Read limit') + ' (MB/s)',
+            labelWidth: width2,
+            emptyText: gettext('unlimited')
+         });
+
+        me.column1.push(me.mbps_rd);
+
+        me.mbps_rd_max = Ext.widget('numberfield', {
+            name: 'mbps_rd_max',
+            minValue: 1,
+            step: 1,
+            fieldLabel: gettext('Read max burst') + ' (MB)',
+            labelWidth: width2,
+            emptyText: gettext('default')
+        });
+
+        me.column2.push(me.mbps_rd_max);
+
+
+        me.mbps_wr = Ext.widget('numberfield', {
+            name: 'mbps_wr',
+            minValue: 1,
+            step: 1,
+            fieldLabel: gettext('Write limit') + ' (MB/s)',
+            labelWidth: width2,
+            emptyText: gettext('unlimited')
+        });
+
+        me.column1.push(me.mbps_wr);
+
+        me.mbps_wr_max = Ext.widget('numberfield', {
+            name: 'mbps_wr_max',
+            minValue: 1,
+            step: 1,
+            fieldLabel: gettext('Write max burst') + ' (MB)',
+            labelWidth: width2,
+            emptyText: gettext('default')
+        });
+
+        me.column2.push(me.mbps_wr_max);
+
+        me.iops_rd = Ext.widget('numberfield', {
+            name: 'iops_rd',
+            minValue: 10,
+            step: 10,
+            fieldLabel: gettext('Read limit') + ' (ops/s)',
+            labelWidth: width2,
+            emptyText: gettext('unlimited')
+        });
+
+        me.column1.push(me.iops_rd);
+
+        me.iops_rd_max = Ext.widget('numberfield', {
+            name: 'iops_rd_max',
+            minValue: 10,
+            step: 10,
+            fieldLabel: gettext('Read max burst') + ' (ops)',
+            labelWidth: width2,
+            emptyText: gettext('default')
+        });
+
+        me.column2.push(me.iops_rd_max);
+
+        me.iops_wr = Ext.widget('numberfield', {
+            name: 'iops_wr',
+            minValue: 10,
+            step: 10,
+            fieldLabel: gettext('Write limit') + ' (ops/s)',
+            labelWidth: width2,
+            emptyText: gettext('unlimited')
+        });
+
+        me.column1.push(me.iops_wr);
+
+        me.iops_wr_max = Ext.widget('numberfield', {
+            name: 'iops_wr_max',
+            minValue: 10,
+            step: 10,
+            fieldLabel: gettext('Write max burst') + ' (ops)',
+            labelWidth: width2,
+            emptyText: gettext('default')
+        });
+
+        me.column2.push(me.iops_wr_max);
+
+	me.callParent();
+    }
+});
+
+Ext.define('PVE.qemu.HDThrottle', {
+    extend: 'PVE.window.Edit',
+
+    isAdd: true,
+
+    initComponent : function() {
+	var me = this;
+
+	var nodename = me.pveSelNode.data.node;
+	if (!nodename) { 
+	    throw "no node name specified";	    
+	}
+
+	var unused = me.confid && me.confid.match(/^unused\d+$/);
+	
+	me.create = me.confid ? unused : true;
+
+	var ipanel = Ext.create('PVE.qemu.HDThrottleInputPanel', {
+	    confid: me.confid,
+	    nodename: nodename
+	});
+
+	var subject;
+	if (unused) {
+	    me.subject = gettext('Unused Disk');
+	} else {
+           me.subject = gettext('Hard Disk') + ' (' + me.confid + ')';
+	}
+
+	me.items = [ ipanel ];
+
+	me.callParent();
+	
+	me.load({
+	    success: function(response, options) {
+		if (me.confid) {
+		    var value = response.result.data[me.confid];
+		    var drive = PVE.Parser.parseQemuDrive(me.confid, value);
+		    if (!drive) {
+			Ext.Msg.alert(gettext('Error'), gettext('Unable to parse drive options'));
+			me.close();
+			return;
+		    }
+		    ipanel.setDrive(drive);
+		    me.isValid(); // trigger validation
+		}
+	    }
+	});
+    }
+});