CHAPTER 6

Compact Disc Test (cdtest)

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cdtest 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 TABLE 6-2 in the chart in "cdtest Test Modes," later in this chapter.

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Volume Management and Compact Discs

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

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cdtest Options

FIGURE 6-1 cdtest

TABLE 6-1 cdtest

cdtest Options	Description
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 connection test this option has a canned value of other. NOTE: Your choice must correspond with the disc used for testing
% 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 connection tests 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 connection tests 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 connection test 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 connection tests this option has a canned value of 125

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cdtest Test Modes

This test supports Connection and Functional tests.

TABLE 6-2 cdtest

Test Mode	Description
Connection Test	In this mode, the test verifies that a CD-ROM drive is connected to and configured in the system
Functional Test	This mode is similar to 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 Functional test and therefore the unavailability of the device is interpreted as an indication of a fault condition If you invoke SunVTS through SyMON, the following Functional Test description applies: 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

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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

TABLE 6-3 cdtest

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.

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cdtest Error Messages

TABLE 6-4 cdtest

Error Message

Probable Cause(s)

Suggested Action (if applicable)

6000   Fail to seek at block

System error message....Retry with a different CD-

<value>                                                       ROM

Bad media

6001	Fail to read <number>	System error message
	bytes at block <number>	Bad media
		Incorrect CD-ROM type passed to cdtest
6002	Data mode <value> not supported	Datamode has a value other than CD_DATAMODE1 or CD_DATAMODE2 (see cdio(7))
6003	Error occurred while playing audio track <number>
6004	Failed to obtain memory from malloc() system call	Audio stop before complete at track <number>
6005	Unexpected audio status <value> received at track <number>	System error message
6006	Fail in reading offset of the multi-session, offset	An incorrect value for cdtype has been passed to the cdtest
	= <value>	Bad media
6007	This is not a CD ROM Multi-Session disc!	An incorrect value for cdtype was passed to the cdtest
8000	Fail to open device <device_name>	System error message
8001	Fail ioctl <name>	System error message
8002	Fail ioctl <name>	System error message
		No partitions on the disc
8003	Fail to allocate <number> bytes of memory

TABLE 6-4 cdtest(Continued)

	Error Message	Probable Cause(s)	Suggested Action (if applicable)
8004	Error occurred while reading TOC header	Track numbers out of range; First track: <value>, Last track: <value>
8005	Data miscompare while reading <number> bytes	An incorrect value for cdtype has been passed to cdtest
	starting from block <number>	Bad media
8006	ioctl CDROMSTART failure (number of retries: <value>)