diff --git a/pkg/volume/fc/fc.go b/pkg/volume/fc/fc.go
index 0c0fc1014d..44e7c8218a 100644
--- a/pkg/volume/fc/fc.go
+++ b/pkg/volume/fc/fc.go
@@ -59,15 +59,8 @@ func (plugin *fcPlugin) CanSupport(spec *volume.Spec) bool {
 	if (spec.Volume != nil && spec.Volume.FC == nil) || (spec.PersistentVolume != nil && spec.PersistentVolume.Spec.FC == nil) {
 		return false
 	}
-	// TODO:  turn this into a func so CanSupport can be unit tested without
-	// having to make system calls
-	// see if /sys/class/fc_transport is there, which indicates fc is connected
-	_, err := plugin.execCommand("ls", []string{"/sys/class/fc_transport"})
-	if err == nil {
-		return true
-	}
 
-	return false
+	return true
 }
 
 func (plugin *fcPlugin) GetAccessModes() []api.PersistentVolumeAccessMode {
diff --git a/pkg/volume/iscsi/iscsi.go b/pkg/volume/iscsi/iscsi.go
index fe2f32ff13..fa89b9664a 100644
--- a/pkg/volume/iscsi/iscsi.go
+++ b/pkg/volume/iscsi/iscsi.go
@@ -59,15 +59,8 @@ func (plugin *iscsiPlugin) CanSupport(spec *volume.Spec) bool {
 	if (spec.Volume != nil && spec.Volume.ISCSI == nil) || (spec.PersistentVolume != nil && spec.PersistentVolume.Spec.ISCSI == nil) {
 		return false
 	}
-	// TODO:  turn this into a func so CanSupport can be unit tested without
-	// having to make system calls
-	// see if iscsiadm is there
-	_, err := plugin.execCommand("iscsiadm", []string{"-h"})
-	if err == nil {
-		return true
-	}
 
-	return false
+	return true
 }
 
 func (plugin *iscsiPlugin) GetAccessModes() []api.PersistentVolumeAccessMode {
diff --git a/pkg/volume/rbd/rbd.go b/pkg/volume/rbd/rbd.go
index 5cb7cc1174..878688fa46 100644
--- a/pkg/volume/rbd/rbd.go
+++ b/pkg/volume/rbd/rbd.go
@@ -58,13 +58,8 @@ func (plugin *rbdPlugin) CanSupport(spec *volume.Spec) bool {
 	if (spec.Volume != nil && spec.Volume.RBD == nil) || (spec.PersistentVolume != nil && spec.PersistentVolume.Spec.RBD == nil) {
 		return false
 	}
-	// see if rbd is there
-	_, err := plugin.execCommand("rbd", []string{"-h"})
-	if err == nil {
-		return true
-	}
 
-	return false
+	return true
 }
 
 func (plugin *rbdPlugin) GetAccessModes() []api.PersistentVolumeAccessMode {