Solaris™ 9 System Administrator Exam Cram™ 2 (Exams 310-014 and 310-015)

Disk Device Names

Disks, like other devices in the Solaris 9 operating system, can be referenced using three naming conventions:

• Physical device name

• Logical device name

• Instance name

Physical Device Names

When the system is booted, the kernel builds a device hierarchy, referred to as the device tree, to represent the devices attached to the system. This tree is a hierarchy of interconnected buses with the devices attached to the buses as nodes. The root node is the main physical address bus.

Each device node can have attributes such as properties, methods, and data. In addition, each node typically has a parent node and might have children nodes. A node with children is typically another bus, whereas a node without children is a device attached ...