return errors if dataDir is missing during HeadObject() (#18477)

Bonus: allow replication to attempt Deletes/Puts when
the remote returns quorum errors of some kind, this is
to ensure that MinIO can rewrite the namespace with the
latest version that exists on the source.

cmd/object-api-errors.go

@@ -686,6 +686,12 @@ func isErrReadQuorum(err error) bool {
 	return errors.As(err, &rquorum)
 }
 
+// isErrWriteQuorum check if the error type is InsufficentWriteQuorum
+func isErrWriteQuorum(err error) bool {
+	var rquorum InsufficientWriteQuorum
+	return errors.As(err, &rquorum)
+}
+
 // isErrObjectNotFound - Check if error type is ObjectNotFound.
 func isErrObjectNotFound(err error) bool {
 	var objNotFound ObjectNotFound