---
title: About the subtree-accessibility tool
description: The subtree-accessibility tool helps you determine if a subtree has restricted access and helps you fix any problems.
component: pingdirectory
version: 11.0
page_id: pingdirectory:pingdirectoryproxy_server_administration_guide:pd_proxy_subtree_accessibility_tool
canonical_url: https://docs.pingidentity.com/pingdirectory/11.0/pingdirectoryproxy_server_administration_guide/pd_proxy_subtree_accessibility_tool.html
revdate: September 13, 2023
---

# About the subtree-accessibility tool

The `subtree-accessibility` tool helps you determine if a subtree has restricted access and helps you fix any problems.

If, during rebalancing, the PingDirectory server issues an alert that a subtree has been unavailable for too long, then you can use this tool to evaluate the problem.

For example, if the `move-subtree` tool is interrupted by a host machine going down unexpectedly, the subtree can't be successfully moved. You can use the `subtree-accessibility` tool to evaluate and correct any problems with the subtrees and then re-run the `move-subtree` tool.