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chs(7d) [sunos man page]

chs(7D) 							      Devices								   chs(7D)

chs - IBM ServeRAID PCI host adapter driver DESCRIPTION
The chs driver is the IBM ServeRAID PCI controller driver. PRECONFIGURATION
Known Problems and Limitations To prevent data loss, a SCSI disk drive that is not defined as part of any physical pack within a logical drive will not be accessible through the Solaris operating environment. CONFIGURATION
Auto-configuration code determines whether the adapter is present at the configured address and what types of devices are attached to it. The IBM ServeRAID is primarily used as a disk array (system drive) controller. To configure the attached disk arrays, you must configure the controller (using the configuration utilities provided by the hardware manu- facturer) before booting the Solaris operating environment You use the configuration utilities to set RAID levels, stripe parameters, cache mechanisms and perform other functions. For more information, see the user manual supplied with your hardware. FILES
/kernel/drv/chs.conf chs configuration file /dev/dsk/cndn[s|p]n block device /dev/rdsk/cndn[s|p]n raw device where: cn controller n dn LUN n (0-7) sn UNIX system slice n (0-15) pn fdisk(1M) partition(0) ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Architecture |x86 | +-----------------------------+-----------------------------+ SEE ALSO
fdisk(1M), attributes(5), cmdk(7D) SunOS 5.10 27 November 2000 chs(7D)

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cmdk(7D)                                                              Devices                                                             cmdk(7D)

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)
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