diff --git a/block/src/raw_async.rs b/block/src/raw_async.rs
index b5ae8f50a..7dcda5bbd 100644
--- a/block/src/raw_async.rs
+++ b/block/src/raw_async.rs
@@ -14,8 +14,10 @@ use vmm_sys_util::eventfd::EventFd;
 use crate::async_io::{
     AsyncIo, AsyncIoError, AsyncIoResult, BorrowedDiskFd, DiskFile, DiskFileError, DiskFileResult,
 };
+use crate::error::{BlockError, BlockErrorKind, BlockResult};
 use crate::{
-    BatchRequest, DiskTopology, RequestType, SECTOR_SIZE, probe_sparse_support, query_device_size,
+    BatchRequest, DiskTopology, RequestType, SECTOR_SIZE, disk_file, probe_sparse_support,
+    query_device_size,
 };
 
 #[derive(Debug)]
@@ -72,6 +74,14 @@ impl DiskFile for RawFileDisk {
     }
 }
 
+impl disk_file::DiskSize for RawFileDisk {
+    fn logical_size(&self) -> BlockResult<u64> {
+        query_device_size(&self.file)
+            .map(|(logical_size, _)| logical_size)
+            .map_err(|e| BlockError::new(BlockErrorKind::Io, DiskFileError::Size(e)))
+    }
+}
+
 pub struct RawFileAsync {
     fd: RawFd,
     io_uring: IoUring,