Reading The Busy Light - HP Model 745 - VME Workstation Owner's Manual

8-14
Using Mass Storage Devices
Mounting and Unmounting a CD-ROM Disc
Press the eject button on the CD-ROM drive and remove the CD-ROM
8
disc from the disc tray.

Reading the Busy Light

The CD-ROM busy light shows the status of the drive during the self test
and during activity with the host system.
The CD-ROM drive performs the self test when one of the following hap-
pens:
• You load a disc and close the Disc Tray.
• You turn on the system with a disc already loaded in the CD-ROM drive.
For the self test, the busy light operates in the following sequence:
Light On - The busy light goes on as the disc loads into the drive.
1
Light Flashing - The light flashes while a read test is performed.
2
Light Off - The light goes off when the self test is complete.
3
The busy light stays on after the self test when one of the following condi-
tions exist:
• A defective disc
• A disc insertion error (for example, an upside-down disc)
• No disc present
The busy light goes off when one of the following conditions exist:
• A CD-ROM drive power failure exists.
• The drive is idle on the SCSI bus.
• No media is mounted
The busy light flashes:
• during normal activity with the system.
• at a 3.2 second interval when disk or optics cleaning is required
• at a 1.6 second interval when playing an audio track.