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Incremental backup

Backs up only those files that were changed since a previous backup, saving tape space and time.

Indirect map

A type of automount map that lists mount points as relative path names. This map uses a relative path to establish the mount point on the client.

Init state

When a system begins initialization, it enters one of eight run statesalso called init states. Because run state 4 is currently not used, only seven usable run states exist.

Initial installation

A Solaris 9 installation method. You perform an initial installation either on a system that does not have an existing Solaris operating system already installed on it or when you want to completely wipe out the existing operating system and reinstall it.


The objects that the Solaris operating environment uses to record information about a file. I-nodes contain information about a file, its owner, permissions, and its size. I-nodes are numbered, and each file system contains its own list of I-nodes.

Install server

A server that provides an image of the Solaris operating environment, which the JumpStart client uses as its source of data to install.

Installation media

The Solaris 9 operating system software is distributed on CD-ROM and DVD and is referred to as The Installation Media Kit.

Instance name

This represents the kernel's abbreviation name for every possible device on the system.

Interactive boot (boot -a)

Stops and asks for input during the boot process. The system provides a dialog box in which it displays the default boot values and gives you the option of changing them. You might want to boot interactively to make a temporary change to the system file or kernel. Booting interactively enables you to test your changes and recover easily if you have problems.

Interactive installation

The Solaris interactive installation program, suninstall, guides you step by step through installing the Solaris software.


The number of blocks on a component of a striped or RAID metadevice that can be simultaneously accessed with the same number of blocks from another component. The interlace value dictates how much data that Solaris Volume Manager places on a component of a striped or RAID metadevice before moving on to the next component.

IP address

Each machine on a TCP/IP network has a unique 32-bit Internet address (or IP address) that identifies the machine to its peers on the network. An IP address in IPv4 consists of four numbers that are separated by periods (, for example). Most often, each part of the IP address is a number between 0 and 225. However, the first number must be less than 224 and the last number cannot be 0.


Version 6 of Internet Protocol (IP) that is designed to be an evolutionary step from the current version, IPv4 (version 4).

ISO/OSI model

The International Standards Organization (ISO)/Open System Interconnection (OSI) model is an ISO standard for worldwide communications that defines a framework for implementing protocols in seven layers. Control is passed from one layer to the next, starting at the application layer in one station, proceeding to the bottom layer, over the channel to the next station, and back up the hierarchy.

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