The PingDirectory Server provides several tools to help you optimize your indexes and improve the overall read and write performance for your system. The server now supports an optional expanded index database using an exploded format to process high write load operations. To view the current state of the server's indexes and make adjustments to the index databases, the Directory Server automatically generates an Index Summary Statistics Table after each LDIF import or index rebuild. The dbtest tool also includes an Index Histogram to determine the key datasize for the indexes. This section provides descriptions of each of these tools.