diff --git a/api/src/org/apache/cloudstack/api/ApiConstants.java b/api/src/org/apache/cloudstack/api/ApiConstants.java
index 87fa8eebaf9..fdb455883e0 100755
--- a/api/src/org/apache/cloudstack/api/ApiConstants.java
+++ b/api/src/org/apache/cloudstack/api/ApiConstants.java
@@ -419,6 +419,7 @@ public class ApiConstants {
     public static final String INSTANCE_NAME = "instancename";
     public static final String START_VM = "startvm";
     public static final String HA_HOST = "hahost";
+    public static final String CUSTOM_DISK_OFF_MIN_SIZE = "customdiskofferingminsize";
     public static final String CUSTOM_DISK_OFF_MAX_SIZE = "customdiskofferingmaxsize";
     public static final String DEFAULT_ZONE_ID = "defaultzoneid";
     public static final String LIVE_MIGRATE = "livemigrate";
diff --git a/api/src/org/apache/cloudstack/api/command/user/config/ListCapabilitiesCmd.java b/api/src/org/apache/cloudstack/api/command/user/config/ListCapabilitiesCmd.java
index d47645b956a..e6696e17ff0 100644
--- a/api/src/org/apache/cloudstack/api/command/user/config/ListCapabilitiesCmd.java
+++ b/api/src/org/apache/cloudstack/api/command/user/config/ListCapabilitiesCmd.java
@@ -53,6 +53,7 @@ public class ListCapabilitiesCmd extends BaseCmd {
         response.setSupportELB((String)capabilities.get("supportELB"));
         response.setProjectInviteRequired((Boolean)capabilities.get("projectInviteRequired"));
         response.setAllowUsersCreateProjects((Boolean)capabilities.get("allowusercreateprojects"));
+        response.setDiskOffMinSize((Long)capabilities.get("customDiskOffMinSize"));
         response.setDiskOffMaxSize((Long)capabilities.get("customDiskOffMaxSize"));
         response.setRegionSecondaryEnabled((Boolean)capabilities.get("regionSecondaryEnabled"));
         response.setKVMSnapshotEnabled((Boolean)capabilities.get("KVMSnapshotEnabled"));
diff --git a/api/src/org/apache/cloudstack/api/response/CapabilitiesResponse.java b/api/src/org/apache/cloudstack/api/response/CapabilitiesResponse.java
index c8de5873367..f7fdb95fb6e 100644
--- a/api/src/org/apache/cloudstack/api/response/CapabilitiesResponse.java
+++ b/api/src/org/apache/cloudstack/api/response/CapabilitiesResponse.java
@@ -49,6 +49,10 @@ public class CapabilitiesResponse extends BaseResponse {
     @Param(description = "true if regular user is allowed to create projects")
     private Boolean allowUsersCreateProjects;
 
+    @SerializedName(ApiConstants.CUSTOM_DISK_OFF_MIN_SIZE)
+    @Param(description = "minimum size that can be specified when " + "create disk from disk offering with custom size")
+    private Long diskOffMinSize;
+
     @SerializedName(ApiConstants.CUSTOM_DISK_OFF_MAX_SIZE)
     @Param(description = "maximum size that can be specified when " + "create disk from disk offering with custom size")
     private Long diskOffMaxSize;
@@ -93,6 +97,10 @@ public class CapabilitiesResponse extends BaseResponse {
         this.allowUsersCreateProjects = allowUsersCreateProjects;
     }
 
+    public void setDiskOffMinSize(Long diskOffMinSize) {
+        this.diskOffMinSize = diskOffMinSize;
+    }
+
     public void setDiskOffMaxSize(Long diskOffMaxSize) {
         this.diskOffMaxSize = diskOffMaxSize;
     }
diff --git a/server/src/com/cloud/server/ManagementServerImpl.java b/server/src/com/cloud/server/ManagementServerImpl.java
index 7431891e8e1..bce2930ecf2 100755
--- a/server/src/com/cloud/server/ManagementServerImpl.java
+++ b/server/src/com/cloud/server/ManagementServerImpl.java
@@ -3341,6 +3341,7 @@ public class ManagementServerImpl extends ManagerBase implements ManagementServe
             }
         }
 
+        long diskOffMinSize = VolumeOrchestrationService.CustomDiskOfferingMinSize.value();
         long diskOffMaxSize = VolumeOrchestrationService.CustomDiskOfferingMaxSize.value();
         KVMSnapshotEnabled = Boolean.parseBoolean(_configDao.getValue("KVM.snapshot.enabled"));
 
@@ -3364,6 +3365,7 @@ public class ManagementServerImpl extends ManagerBase implements ManagementServe
         capabilities.put("supportELB", supportELB);
         capabilities.put("projectInviteRequired", _projectMgr.projectInviteRequired());
         capabilities.put("allowusercreateprojects", _projectMgr.allowUserToCreateProject());
+        capabilities.put("customDiskOffMinSize", diskOffMinSize);
         capabilities.put("customDiskOffMaxSize", diskOffMaxSize);
         capabilities.put("regionSecondaryEnabled", regionSecondaryEnabled);
         capabilities.put("KVMSnapshotEnabled", KVMSnapshotEnabled);
diff --git a/ui/index.jsp b/ui/index.jsp
index dce2aa878aa..4910b9f11fc 100644
--- a/ui/index.jsp
+++ b/ui/index.jsp
@@ -254,7 +254,7 @@
                                     <label><fmt:message key="label.disk.size"/></label>
 
                                     <!-- Slider -->
-                                    <label class="size">1 GB</label>
+                                    <label class="size min"><span></span> GB</label>
                                     <div class="slider custom-size"></div>
                                     <label class="size max"><span></span> GB</label>
 
diff --git a/ui/scripts/instanceWizard.js b/ui/scripts/instanceWizard.js
index 03ee344b41f..c2d3030b149 100644
--- a/ui/scripts/instanceWizard.js
+++ b/ui/scripts/instanceWizard.js
@@ -22,6 +22,12 @@
     var step6ContainerType = 'nothing-to-select'; //'nothing-to-select', 'select-network', 'select-security-group', 'select-advanced-sg'(advanced sg-enabled zone)
 
     cloudStack.instanceWizard = {
+        //min disk offering  size when custom disk size is used
+        minDiskOfferingSize: function() {
+            return g_capabilities.customdiskofferingminsize;
+        },
+
+        //max disk offering size when custom disk size is used
         maxDiskOfferingSize: function() {
             return g_capabilities.customdiskofferingmaxsize;
         },
diff --git a/ui/scripts/ui-custom/instanceWizard.js b/ui/scripts/ui-custom/instanceWizard.js
index c5e0ddb2364..1a0c323d53c 100644
--- a/ui/scripts/ui-custom/instanceWizard.js
+++ b/ui/scripts/ui-custom/instanceWizard.js
@@ -1105,17 +1105,22 @@
                     $futureSteps.removeClass('loaded');
                 });
 
+                var minCustomDiskSize = args.minDiskOfferingSize ?
+                                    args.minDiskOfferingSize() : 1;
+
                 var maxCustomDiskSize = args.maxDiskOfferingSize ?
                     args.maxDiskOfferingSize() : 100;
 
                 // Setup tabs and slider
+                $wizard.find('.section.custom-size .size.min span').html(minCustomDiskSize);
+                $wizard.find('.section.custom-size input[type=text]').val(minCustomDiskSize);
                 $wizard.find('.section.custom-size .size.max span').html(maxCustomDiskSize);
                 $wizard.find('.tab-view').tabs();
                 $wizard.find('.slider').each(function() {
                    var $slider = $(this);
 
                     $slider.slider({
-                        min: 1,
+                        min: minCustomDiskSize,
                         max: maxCustomDiskSize,
                         start: function(event) {
                             $slider.closest('.section.custom-size').find('input[type=radio]').click();