System Administration Guide, Volume 1

Accessing Devices

System administrators need to know how to specify device names when using commands to manage disks, file systems, and other devices. In most cases, system administrators use logical device names to represent devices connected to the system. Both logical and physical device names are represented on the system by logical and physical device files.

How Device Information Is Created

When a system is booted for the first time, a device hierarchy is created to represent all the devices connected to the system. The kernel uses the device hierarchy information to associate drivers with their appropriate devices, and provides a set of pointers to the drivers that perform specific operations. See the OpenBoot 3.x Command Reference Manual for more information on device hierarchy.

Device Naming Conventions

Devices are referenced in three ways in the Solaris environment.