svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
cmdk(4d)
cmdk(4D) Device Drivers & /dev files cmdk(4D)
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 both fixed disks and removable disks.
The cmdk device driver supports three different disk labels: fdisk par‐
tition table, Solaris x86 VTOC and EFI/GPT.
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 trans‐
mission between the disk and the user's read or write buffer. A single
read or write call usually results in one I/O operation; raw I/O is
therefore considerably more efficient when many bytes are transmitted.
The names of the block files are found in /dev/dsk. Raw file names are
found in /dev/rdsk.
I/O requests to the disk must have an offset and transfer length that
is a multiple of 512 bytes or the driver returns an EINVAL error.
When not using ZFS, slice 2 is normally used for backing up the entire
fdisk partition for Solaris software. Other slices may be used for
other file systems or system reserved area.
The fdisk partition 0 is to access the entire disk and is generally
used by the fdisk(8) 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 (0-1).
sn UNIX system slice n (0-15).
pn fdisk partition (0-36).
/kernel/drv/amd64/cmdk 64-bit kernel module.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Architecturex86 _ Availabilitydriver/storage/cmdk
SEE ALSO
lseek(2), read(2), write(2), readdir(3C), dkio(4I), scsi(5), vfstab(5),
attributes(7), fdisk(8), mount(8)
Oracle Solaris 11.4 15 Mar 2024 cmdk(4D)