Using SCSI Devices

Using SCSI Hard Disk Drives

If you connect a SCSI hard disk drive to the ASUS LS99 SCSI card that was previously connected to a different SCSI card, you must low-level format the drive before you can use it. Back up the data on the drive before you format it! (See 3.2.4 Using SCSI Disk Utilities for information on using the SCSISelect format utility.)

CAUTION: A low-level format destroys all data on the drive. Be sure to back up the data before performing a low-level format.

Every SCSI hard disk drive must be physically low-level formatted, partitioned, and logically formatted before it can be used to store data. Most SCSI drives are pre-formatted at the factory. If your SCSI hard disk drive has not been pre- formatted at the factory, and if your computer is running under DOS, Windows® 3.x, or Windows 95/98, you can format the disk with the DOS Fdisk and Format commands. (See the DOS and Windows documentation for more information.) To format SCSI hard disk drives running under other operating systems, see the operating system documentation.

Using Ultra160 Hard Disk Drives

We recommend that you connect your LVD (Ultra160 and Ultra2) SCSI devices and non-LVD SCSI devices to separate channels. This allows the LVD SCSI devices to run at their maximum performance levels of 160 MBytes/sec or 80 MBytes/sec. If you combine LVD and non-LVD SCSI devices on the same SCSI channel,the data transfer rate of the LVD SCSI devices will drop down to non- LVD SCSI performance levels of up to 40 MBytes/sec.

Internal Ultra2 and Ultra160 SCSI devices come from the factory with termination disabled and cannot be changed. Proper termination is provided by the terminator at the end of the internal LVD SCSI cable.

Using Scanners

If you connect a scanner to the ASUS LS99 SCSI Card, you must install the scanner manufacturer’s proprietary software drivers. See your scanner’s documentation for details.

Appendix A

Appendix

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