MVME323(7) MVME323(7)
NAME
mvme323 - general driver for the MVME323 ESDI Disk
Controller
DESCRIPTION
The mvme323 disk driver provides a block, physical (raw),
and ioctl(2) interface to the MVME323 Enhanced Small Device
Interface (ESDI) Controller Module.
The controller performs bad track redirection to previously
assigned alternate tracks without the assistance of the
driver. The dinit(1M) program must be used to map bad
tracks to the alternate tracks.
The block device nodes /dev/dsk/m323* provide access to the
designated drive via the system's normal buffer cache
mechanism.
The raw device nodes /dev/rdsk/m323* provide for the
transfer of a specified number of bytes (the byte count must
be a multiple of a 512-byte physical block) between the
drive and a location in the user's address space.
The driver interprets the minor device number as follows:
bit 4,5 defines one of four drives
bit 3,2,1,0 partition (slice)
Numerous ioctl(2) system calls are available to format a
track, enable/disable programmable options, set controller
and drive parameters, reset controllers and drives, read or
write track headers, and display internal information.
FILES
/dev/dsk/m323_*
/dev/rdsk/m323_*
SEE ALSO
dinit(1M).
Page 1 May 1989
MVME323(7) MVME323(7)
ioctl(2) in the Programmer's Reference Manual.
Appendix A in the System Administrator's Guide for details
on device node nomenclature and default partition sizes.
Page 2 May 1989