diff --git a/internal/rbd/controllerserver.go b/internal/rbd/controllerserver.go
index 0cd9dcc0b..7d576cf22 100644
--- a/internal/rbd/controllerserver.go
+++ b/internal/rbd/controllerserver.go
@@ -136,6 +136,8 @@ func (cs *ControllerServer) parseVolCreateRequest(
 
 	// always round up the request size in bytes to the nearest MiB/GiB
 	rbdVol.VolSize = util.RoundOffBytes(volSizeBytes)
+	// RequestedVolSize has the size of the volume requested by the user.
+	rbdVol.RequestedVolSize = rbdVol.VolSize
 
 	// start with pool the same as journal pool, in case there is a topology
 	// based split, pool for the image will be updated subsequently
diff --git a/internal/rbd/rbd_util.go b/internal/rbd/rbd_util.go
index 9fc149d14..ed758d8c7 100644
--- a/internal/rbd/rbd_util.go
+++ b/internal/rbd/rbd_util.go
@@ -164,7 +164,10 @@ type rbdVolume struct {
 	VolName            string `json:"volName"`
 	MonValueFromSecret string `json:"monValueFromSecret"`
 	VolSize            int64  `json:"volSize"`
-	DisableInUseChecks bool   `json:"disableInUseChecks"`
+	// RequestedVolSize has the size of the volume requested by the user and
+	// this value will not be updated when doing getImageInfo() on rbdVolume.
+	RequestedVolSize   int64
+	DisableInUseChecks bool `json:"disableInUseChecks"`
 	readOnly           bool
 	Primary            bool
 	ThickProvision     bool