fix: move list quorum ENV to config (#10804)

cmd/config/storageclass/help.go

@@ -33,6 +33,12 @@ var (
 			Optional:    true,
 			Type:        "string",
 		},
+		config.HelpKV{
+			Key:         ClassDMA,
+			Description: `enable O_DIRECT for both read and write, defaults to "write" e.g. "read+write"`,
+			Optional:    true,
+			Type:        "string",
+		},
 		config.HelpKV{
 			Key:         config.Comment,
 			Description: config.DefaultComment,

cmd/config/storageclass/storage-class.go

@@ -36,9 +36,9 @@ const (
 	// DMA storage class
 	DMA = "DMA"
 
-	// Valid values are "write" and "read-write"
+	// Valid values are "write" and "read+write"
 	DMAWrite     = "write"
-	DMAReadWrite = "read-write"
+	DMAReadWrite = "read+write"
 )
 
 // Standard constats for config info storage class