NEX-3729 KRRP changes mess up iostat(1M)
Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com>
Reviewed by: Roman Strashkin <roman.strashkin@nexenta.com>

@@ -274,10 +274,15 @@
                 break;
         case IODEV_PARTITION:
                 (void) printf("<<partition %s: %s>>\n",
                     added ? "added" : "removed", name);
                 break;
+        case IODEV_ZFS:
+                (void) printf("<<ZFS %s %s: %s>>\n",
+                    strchr(name, '/') ? "vdev" : "pool",
+                    added ? "added" : "removed", name);
+                break;
         case IODEV_NFS:
                 (void) printf("<<NFS %s: %s>>\n",
                     added ? "mounted" : "unmounted", name);
                 break;
         case IODEV_TAPE: