when the SFF-8088 cable write cache is set to auto

The EnhanceBOX E400 MS is built on the latest I/O technology, the Mini-SAS (MS) connectivity, for multiple-disk configurations and superior performance. The EnhanceBOX E400 MS comes with highly reliable, high speed SFF-8088 cable connector that combines four (4) low-cost SATA or high reliable SAS disks for professional-quality video or applications such as backup and data management for SOHO and SMB users.The Adaptec card has 3 x internal SFF-8088 cable ports and 1 x external SFF-8088 cable port, supporting 12 internal drives.The only problem I had with these servers is with the v1.46 firmware that shipped on the Areca's. There was high latency the first time a file is read or written, about 2 or 3 seconds. But when I upgraded the firmware to v1.47, this problem went away. Now all servers are happily serving more than 20 TB of data each, with only 1 SFF-8088 cable failure out of 64 SFF-8088 cable (infant mortality?).Can you describe in more detail your Areca 1680ix setup and what exactly you observed with the WD2002FYPS drives?