diff --git a/utils/src/format.h b/utils/src/format.h
index 90d1d4c7..bb8d674a 100644
--- a/utils/src/format.h
+++ b/utils/src/format.h
@@ -449,6 +449,12 @@ struct scoutfs_timespec {
  * have changed.  It is exposed via an ioctl and is then provided as an
  * argument to data functions to protect racing modification.
  *
+ * @online_blocks: The number of fixed 4k blocks currently allocated and
+ * storing data in the volume.
+ *
+ * @offline_blocks: The number of fixed 4k blocks that could be made
+ * online by staging.
+ *
  * XXX
  *	- otime?
  *	- compat flags?
@@ -462,6 +468,8 @@ struct scoutfs_inode {
 	__le64 meta_seq;
 	__le64 data_seq;
 	__le64 data_version;
+	__le64 online_blocks;
+	__le64 offline_blocks;
 	__le64 next_readdir_pos;
 	__le32 nlink;
 	__le32 uid;
diff --git a/utils/src/ioctl.h b/utils/src/ioctl.h
index 34917a34..33c94b95 100644
--- a/utils/src/ioctl.h
+++ b/utils/src/ioctl.h
@@ -178,6 +178,8 @@ struct scoutfs_ioctl_stat_more {
 	__u64 meta_seq;
 	__u64 data_seq;
 	__u64 data_version;
+	__u64 online_blocks;
+	__u64 offline_blocks;
 } __packed;
 
 #define SCOUTFS_IOC_STAT_MORE _IOW(SCOUTFS_IOCTL_MAGIC, 7, \
diff --git a/utils/src/stat.c b/utils/src/stat.c
index f9f4f569..8d320afc 100644
--- a/utils/src/stat.c
+++ b/utils/src/stat.c
@@ -49,9 +49,12 @@ static int stat_more_cmd(int argc, char **argv)
 		} else {
 			printf("          File: '%s'\n"
 			       "  meta_seq: %-20llu data_seq %-20llu"
-			       "  data_version: %-20llu\n",
+			       "  data_version: %-20llu\n"
+			       "  online_blocks: %-20llu "
+			       " offline_blocks: %-20llu\n",
 				path, stm.meta_seq, stm.data_seq,
-				stm.data_version);
+				stm.data_version, stm.online_blocks,
+				stm.offline_blocks);
 		}
 
 		close(fd);