By default Directory Proxy Server requires up to one gigabyte of local disk space for access logging, and another gigabyte of local disk space for errors logging. Given the quantity of access log messages Directory Proxy Server writes when handling client application requests, logging can be a performance bottleneck. Typically, however, you must leave logging on in a production environment. For best performance therefore put Directory Proxy Server logs on a fast, dedicated disk subsystem. See Configuring Directory Proxy Server Logs in Sun Java System Directory Server Enterprise Edition 6.3 Administration Guide for instructions on adjusting log settings.