NAME

optioctl − control the optical disk

SYNOPSIS

optioctl [ −a N ] [ −f N ] [ −w N ] [ −F ] special

DESCRIPTION

optioctl allows the system administrator to examine and modify optical disk parameters and to format an optical disk.  The argument special must be the raw (character-special) node of the optical disk device.  With no options, optioctl reports the current parameter settings.  The options are:

−aN Controls use of Automatic Write Reallocation.  If N is zero, disables AWR (when the drive detects an error during a write operation it will not automatically remap to a spare block).  If N is nonzero, enables AWR. 

−fN Controls use of Format and Certify.  If N is zero, disables FAC (the driver will not allow the optical disk to be formatted; this disables the −F option).  If N is nonzero, enables FAC. 

−wN Controls use of Write and Verify.  If N is zero, disables WAV (the driver will use a normal write command).  If N is nonzero, enables WAV (the driver will use a write-and-verify command).  Enabling WAV reduces write throughput by approximately 30%. 

−F Formats the optical disk.  The Format and Certify feature must be enabled or optioctl will fail.  Use of this option will erase all data on the optical disk.

FILES

/dev/rdsk/∗Raw disk nodes

SEE ALSO

mkfs(1)

September 02, 1992