fix: crash in single drive mode for lifecycle (#12077)

also make sure to close the channel on the producer
side, not in a separate go-routine, this can lead
to races between a writer and a closer.

fixes #12073

cmd/server-main.go

@@ -516,9 +516,9 @@ func serverMain(ctx *cli.Context) {
 	if globalIsErasure {
 		initAutoHeal(GlobalContext, newObject)
 		initBackgroundTransition(GlobalContext, newObject)
-		initBackgroundExpiry(GlobalContext, newObject)
 	}
 
+	initBackgroundExpiry(GlobalContext, newObject)
 	initDataScanner(GlobalContext, newObject)
 
 	if err = initServer(GlobalContext, newObject); err != nil {