C-5Optimizing PerformanceAHA-2740W/2742W/2744W User’s GuideStock Number: 510647-00, Rev. A Page: C-5Print Spec Number: 492897-00Current Date: 8/3/94 ECN Date: 8/9/94AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAASend Start Unit Command is disabled (set to no) by default. Checkyour hardware documentation before you enable (set to yes) thisoption to make sure your devices support it. Then change the switchor jumper settings on the device to enable the option. To enable/disable Send Start Unit Command, See Device Configuration on page3-13.Try enabling Send Start Unit Command for one peripheral at a time,rebooting each time to make sure each SCSI device works properly.(Some older disk devices do not support this option and may mal-function if they receive the command.)Note: The Send Start Unit Command has no effect if the hostadapter BIOS is disabled.DOS/Windows PerformanceAdaptec's EZ-SCSI I/O Operating Environment Software isdesigned not only to simplify installation of device drivers underDOS, but also includes ASPI management software to provideVirtual DMA Services (VDS) support and enhanced Windows sup-port. The drivers that are installed will give DOS users the best per-formance possible under not only DOS, but Windows.r
