diff --git a/docs/shard-modes.md b/docs/shard-modes.md
index 3b459335b..6cc4ab13c 100644
--- a/docs/shard-modes.md
+++ b/docs/shard-modes.md
@@ -51,10 +51,7 @@ However, all mode changing operations are idempotent.
 
 ## Automatic mode changes
 
-Shard can automatically switch to a `degraded-read-only` mode in 3 cases:
-1. If the metabase was not available or couldn't be opened/initialized during shard startup.
-2. If shard error counter exceeds threshold.
-3. If the metabase couldn't be reopened during SIGHUP handling.
+A shard can automatically switch to `read-only` mode if its error counter exceeds the threshold.
 
 # Detach shard