About the ATTO Configuration Tool: The ATTO Configuration Tool is a program that displays information about installed adapters, drivers and devices; provides a mechanism to change NVRAM settings on ATTO adapters; and provides a mechanism to update the FLASH ROM image. For the ExpressPCI UL3D, UL3S, UL5D LP, UL5D, UL4D and UL4S SCSI host adapters in Mac OS X 10.3 and later, the ATTO Configuration Tool supports dynamic bus rescan capabilities that allow SCSI devices to be added to and removed from the SCSI bus without rebooting. Rescan capabilities can be invoked from the ATTO Configuration Tool 'Advanced' tab. The ATTO Configuration Tool helps you customize the settings of your ExpressSAS, Celerity and ExpressPCI host adapters to maximize the performance of your storage connection. While the factory settings on your host adapter should provide excellent performance for a wide range of applications, some specialized applications may benefit from modification of the adapter settings to tune the adapter for a specific performance range. Release Notes: This application currently supports the following host adapters: ExpressSAS H308, H380, H608, H644, H680, R348, and R380; Celerity FC 84EN, 82EN, 81EN, 84EP, 82EP, 81EP, 42EN, 41EN, 44ES, 42ES, 41ES, 42XS, 41XS, 42ESM, 42XSM, 24XL, 22XH and 21PS; ExpressPCI FC 3300, 3305, 2600, SW, and 3321; and ExpressPCI PSC, UL3D, UL3S, UL5D LP, UL5D, UL4D and UL4S. Requires Mac OS X version 10.2.4 (or later) and Mac OS X Java update v1.4.1 (or later) for proper operation. For ExpressSAS RAID and multipathing configuration, Mac OS X version 10.4.1 (or later) and Java 1.5.0 is required. Use the Software Update application on your system to download and install the latest versions, if necessary. When upgrading to a new driver and flash bundle version, upgrade your driver first before upgrading the flash bundle with the Configuration Tool. Reboot your system and verify that the proper driver is installed using the Devices tab in the Configuration Tool. Online help text is included in the application; however, if you need more information, refer to the ATTO Utilities manual, available on the CD-ROM included with your adapter or directly from the ATTO website. Installation Instructions: Double-click the installer to begin installation. Follow the on-screen instructions to complete the installation.