Compact Disc Test (cdtest)

This test checks the CD-ROM unit by reading the CD. cdtest is not a scalable test. Each track is classified as follows:

• Mode 1 uses error detection/correction code (288 bytes)
• Mode 2 uses that space for auxiliary data, or as an audio track.

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Note - Load a scratch compact disc into the drive before starting the test. See the explanation for CD_type in the chart in Section , "cdtest Test Modes."

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Volume Management and Compact Discs The cdtest tests the CD-ROM drive(s) even if the Volume Manager is not running. If the Volume Manager is running and no media is installed in the CD-ROM drive(s), then SunVTS prompts you to install media in the drive before selecting the test.

The test fails if you try to run it without a CD in the drive.

cdtest Options

Figure 4-1 cdtest

• CD Type indicates the type of compact disc to test from the CD Type menu. The choices are: pdo, multi-session, or other (the default CD type is other).In the connectivity mode this option has a canned value of other.

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Note - Your choice must correspond with the disc used for testing.

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• % Data/Track tests a percentage of data on each track; type a value between 0 and 100 in this field to indicate the percentage. In the online and connectivity modes this option has a canned value of 2%.

• Read Mode indicates the mode; choose between Random or Sequential reading. In random mode, data blocks are read from random track positions; in sequential mode, data blocks are read in sequence. For both modes, the total number of blocks read is determined by the %_of_data option. In the online and connectivity modes this option has a canned value of random.
• Audio Test enables or disables the audio test. You must connect headphones or a speaker to the audio jack on the CD player to hear audio output. In the connectivity mode this option has a canned value of disable.
• Volume adjusts the volume; type a value between 0 and 255 in this field. In the online and connectivity modes this option has a canned value of 125.

cdtest Test Modes

This test supports all the three modes of testing available under SunVTS, namely connectivity, online and offline.

Connectivity Mode In this mode the test verifies that a CD-ROM drive is connected to and configured in the system.

Online Mode This mode attempts to verify the functionality of the drive by accessing and reading the media in the drive. If the media contains audio and the audio test is enabled, it tries to play it.

Only a small percentage of the media is read, as this is sufficient to verify the functionality of the drive and keeps the test runtime from being unnecessarily extended.

If the device is found to be busy at the time of testing the test exits after printing a message indicating that the device is unavailable for testing. The pass and error counts are unaffected.

Offline Mode This mode is similar to the online mode except that the test registers a failure if the device is found to be busy. This is because SunVTS tests make the assumption that all the resources will be available for testing in the offline mode and therefore the unavailability of the device is interpreted as an indication of a fault condition.

cdtest Command Line Syntax

/opt/SUNWvts/bin/cdtest standard_arguments -o dev=raw_device_name,
mode=mode,read=random|sequential,data=%_of_data,vol=volume,
audio=enable|disable,type=CD_type

Argument	Explanation
dev=raw_device_name	Specifies the name of the raw device to be tested.
read=random|sequential	Indicates random or sequential read access.
data=%_of_data	Sets the percentage of data to be tested; you can specify 0 through 100 percent.
vol=volume	Controls the audio volume; you can specify 0 through 255; the default is 255.
audio=enable|disable	Enables or disables the audio test; you must connect headphones or a speaker to the audio jack on the CD player to hear audio output.
type=CD_type	Specifies the type of CD used for the test; the choices are: pdo, multi-session, sunos and others; the default is other.

cdtest Error Messages

 6000  Fail to seek at block <value>

Probable_Cause(s):

a. <system_error_message> b. Bad media

Recommended_Action(s):

a. Retry with a different CD-ROM

 6001  Fail to read <number> bytes at block <number>

Probable_Cause(s):

a. <system_error_message> b. Bad media

c. Incorrect CD-ROM type passed to cdtest

 6002  Data mode <value> not supported

Probable_Cause(s):

a. datamode has a value other than CD_DATAMODE1 or CD_DATAMODE2 (see cdio(7))

 6003  Error occurred while playing audio track <number>

 6004  Audio stop before complete at track <number>

 6005  Unexpected audio status <value> received at track
<number>

 6006   Fail in reading offset of the multi-session, offset
= <value>

Probable_Cause(s):

a. An incorrect value for cdtype has been passed to the cdtest

b. Bad media

 6007  This is not a CD ROM Multi-Session disc!

Probable_Cause(s):

a. An incorrect value for cdtype has been passed to the cdtest

 8000  Fail to open device <device_name>

Probable_Cause(s):

a. <system_error_message>

 8001  Fail ioctl <name>

Probable_Cause(s):

a. <system_error_message>

 8002  Fail ioctl <name>

Probable_Cause(s):

a. <system_error_message> b. No partitions on the disc

 8003  Fail to allocate <number> bytes of memory

 8004  Error occurred while reading TOC header

Probable_Cause(s):

a. Track numbers out of range; First track: <value>, Last track: <value>

Recommended_Action(s):

a. Retry with different CD-ROM

 8005  Data miscompare while reading <number> bytes
starting from block <number>

Probable_Cause(s):

a. An incorrect value for cdtype has been passed to cdtest b. Bad media

 8006  ioctl CDROMSTART failure (number of retries:
<value>)