Adaptec 2944UW Installation Guide - Page 11

Other Problems and Solutions s If you changed any values on a host adapter, in a setup program, or on a SCSI device, did you turn the power OFF and ON to ensure that the new values are loaded? s If you tried to use the format/verify utility on a disk device and got an Unexpected SCSI Command Failure pop-up box with error information, the utility probably encountered a problem with the disk device or the media and therefore cannot run. You can probably determine from the Sense Key information (e.g., 06h - Unit Attention) both the cause of the problem and its solution. Here are some of the more common Sense Key values and their meanings: - 02h - Not ready-The media is not ready to format. Be sure that media is inserted in the drive and that the media is spun up. - 03h - Medium error-The disk media may be defective. If it is a removable-media drive, try using a different disk media. If it is a hard disk drive, the disk may be physically damaged. Verify and format the media with SCSISelect. - 04h - Hardware error-The disk drive may be defective. Consult the hardware documentation and contact the manufacturer. - 06h - Unit attention-The removable media may be write-protected. Disable write protection and run the utility again. BIOS Startup Messages If the host adapter BIOS is enabled, but it fails to initialize, the system displays a specific error message followed by a BIOS Installation Failure message. Here are some of these error messages and their meaning: Device connected, but not ready. The host adapter received no answer when it requested data from an installed SCSI device. Try setting the Send Start Unit Command to Yes for the host adapter. If the message still appears, follow the drive manufacturer's instructions to make sure the drive is set to spin up when the power is switched ON. Start unit request failed. The BIOS was unable to send a Start Unit Command to the device. Run the SCSISelect utility and disable Send Start Unit Command for the device. Time-out failure during ... An unexpected time-out occurred. Check SCSI bus termination. Try disconnecting the SCSI peripheral cables from the host adapter and then starting the computer. If the computer successfully restarts, check SCSI bus termination and cable connections. One of the devices on the SCSI bus may be defective. 10