+int num_cdats = 0;
+int curr_max_cdats = PTRS_IN_PAGE;
+
+int num_odats = 0;
+int curr_max_odats = PTRS_IN_PAGE;
+
+
+int num_vdats = 0;
+int curr_max_vdats = PTRS_IN_PAGE;
+
+int num_refs = 0;
+int curr_max_refs = PTRS_IN_PAGE;
+uint64_t ss_ref_id = 0x00FFFFFF; /* system space for ref_ids */
+
+int num_links = 0;
+int curr_max_links = PTRS_IN_PAGE;
+
+int num_posts = 0;
+int curr_max_posts = PTRS_IN_PAGE;