diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index e07343d56..554736e94 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -15,6 +15,8 @@ The following tip changes can be tested by building VictoriaMetrics components f
 
 ## v1.87.x long-time support release (LTS)
 
+* BUGFIX: [vmstorage](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html): log warning about switching to ReadOnly mode only on state change. Before, vmstorage would log this warning every 1s. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5159) for details.
+
 ## [v1.87.10](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.10)
 
 Released at 2023-10-16
diff --git a/lib/storage/storage.go b/lib/storage/storage.go
index 9ef67381d..5921dce07 100644
--- a/lib/storage/storage.go
+++ b/lib/storage/storage.go
@@ -625,9 +625,12 @@ func (s *Storage) startFreeDiskSpaceWatcher() {
 	f := func() {
 		freeSpaceBytes := fs.MustGetFreeSpace(s.path)
 		if freeSpaceBytes < freeDiskSpaceLimitBytes {
+			if atomic.LoadUint32(&s.isReadOnly) == 0 {
+				// log notification only on state change
+				logger.Warnf("switching the storage at %s to read-only mode, since it has less than -storage.minFreeDiskSpaceBytes=%d of free space: %d bytes left",
+					s.path, freeDiskSpaceLimitBytes, freeSpaceBytes)
+			}
 			// Switch the storage to readonly mode if there is no enough free space left at s.path
-			logger.Warnf("switching the storage at %s to read-only mode, since it has less than -storage.minFreeDiskSpaceBytes=%d of free space: %d bytes left",
-				s.path, freeDiskSpaceLimitBytes, freeSpaceBytes)
 			atomic.StoreUint32(&s.isReadOnly, 1)
 			return
 		}