+
+ /**
+ * Check if the Volume is a clone or not.
+ *
+ * @return bool
+ * @access public
+ */
+ public function isClone() {
+ $origin = $this->getProperty("origin");
+ if (strlen($origin["value"]) > 0) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ /**
+ * Get the origin of the Volume if it's a clone.
+ *
+ * @return string The name of the origin if it exists. Otherwise an empty string.
+ * @access public
+ */
+ public function getOrigin() {
+ if ($this->isClone()) {
+ $origin = $this->getProperty("origin");
+ return $origin['value'];
+ } else {
+ return "";
+ }
+ }
+
+ /**
+ * Promotes the Volume if it's a clone.
+ *
+ * @return void
+ * @access public
+ */
+ public function promote() {
+ if ($this->isClone()) {
+ $cmd = "zfs promote " . $this->name . " 2>&1";
+ $this->exec($cmd,$out,$res);
+ }
+ }