HP SureStore Optical Disk Drive User's Guide - C1114-90015

1-6 Chapter 1

Setting up the Disk Drive

Connecting the Drive to Your Host Computer

The disk drive is a “narrow,” single-ended SCSI-2 device. This means that the drive

connects to a 50-line single-ended-type SCSI bus using 50-pin high-density

connectors.

You can connect the drive to a SCSI bus either as the only device on the bus or as

one of a number of devices on the bus (daisy-chained).

The SCSI ID you choose for this drive identifies the drive on the bus and also sets its

priority for use of the bus. If you would like more information on the operation of

the SCSI bus, refer to Appendix B. Also, refer to your host adapter’s documentation

for guidance on installing this drive on the bus.

The following sections will describe the steps to install this drive onto the bus. You

must do the following:

• Determine and set the drive’s operating mode

• Determine and set the SCSI ID of the drive

• Attach the bus cable and ensure the bus is properly terminated

Setting the Operating Mode and Write Verify

This drive may be operated in two modes:

• as an optical memory device

• as a direct access device

In most cases, you can select the optical memory device mode (which is the default

setting). Choose the “direct access device” mode if your system does not support

optical memory devices or if your system requires a direct access device. Check

your system documentation to determine which mode to select.

In either mode of operation, you have the choice of write verify on or off.

The write verify configuration ensures that data is written reliably to an optical disk.

The drive ships with write verify enabled. Many software applications also default

to this method of writing.

Writing data on a magneto-optical disk requires two passes. The first pass erases the

data in the sector to which data will be written. The second pass writes new data to

that sector.