blk2scsa(7d) [opensolaris man page]
blk2scsa(7D) Devices blk2scsa(7D) NAME
blk2scsa - SCSA block device emulation DESCRIPTION
The blk2scsa module provides support services for generic block devices so that they appear to the system as devices on a virtual SCSI bus, thus allowing them to be serviced by the sd(7D) SCSI disk driver. The blk2scsa device supports the SCSI-2 command set for Direct Access Devices. The blk2scsa device supports multiple LUNs per physical device and creates a separate child device for each LUN. All child nodes attach to sd(7D). DEVICE SPECIAL FILES
Disk block special file names are located in /dev/dsk. Raw file names are located in /dev/rdsk. See sd(7D). IOCTLS
See dkio(7I) ERRORS
See sd(7D). FILES
Device special files for the storage device are created in the same way as those for a SCSI disk. See sd(7D) for more information. /dev/dsk/cntndnsn Block files for disks. /dev/rdsk/ctndnsn Raw files for disks. /kernel/misc/blk2scsa 32-bit ELF kernel module (x86). /kernel/misc/amd64/blk2scsa 64-bit ELF kernel module (x86). /kernel/misc/sparcv9/blk2scsa 64-bit ELF kernel module (SPARC). ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |SPARC, x86 | +-----------------------------+-----------------------------+ |Availability |SUNWckr | +-----------------------------+-----------------------------+ SEE ALSO
eject(1), rmformat(1), rmmount(1), cfgadm_scsi(1M), fdisk(1M), mount(1M), umount(1M), scsi(4), vfstab(4), attributes(5), sd(7D), dkio(7I), pcfs(7FS) 802.11b Standard for Wireless Local Area Networks (WLANs) - IEEE SunOS 5.11 28 Feb 2008 blk2scsa(7D)
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cmdk(7D) Devices cmdk(7D) NAME
cmdk - common disk driver SYNOPSIS
cmdk@target, lun : [ partition | slice ] DESCRIPTION
The cmdk device driver is a common interface to various disk devices. The driver supports magnetic fixed disks and magnetic removable disks. The block-files access the disk using the system's normal buffering mechanism and are read and written without regard to physical disk records. There is also a "raw" interface that provides for direct transmission between the disk and the user's read or write buffer. A sin- gle read or write call usually results in one I/O operation; raw I/O is therefore considerably more efficient when many bytes are transmit- ted. The names of the block files are found in /dev/dsk; the names of the raw files are found in /dev/rdsk. I/O requests to the magnetic disk must have an offset and transfer length that is a multiple of 512 bytes or the driver returns an EINVAL error. Slice 0 is normally used for the root file system on a disk, slice 1 as a paging area (for example, swap), and slice 2 for backing up the entire fdisk partition for Solaris software. Other slices may be used for usr file systems or system reserved area. Fdisk partition 0 is to access the entire disk and is generally used by the fdisk(1M) program. FILES
/dev/dsk/cndn[s|p]n block device (IDE) /dev/rdsk/cndn[s|p]n raw device (IDE) where: cn controller n dn lun n (0-7) sn UNIX system slice n (0-15) pn fdisk partition(0) /kernel/drv/cmdk 32-bit kernel module. /kernel/drv/amd64/cmdk 64-bit kernel module. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86 | +-----------------------------+-----------------------------+ SEE ALSO
fdisk(1M), mount(1M), lseek(2), read(2), write(2), readdir(3C), scsi(4), vfstab(4), attributes(5), dkio(7I) SunOS 5.10 9 Oct 2004 cmdk(7D)