User guide

Hypertext Transfer Protocol (HTTP). A networking protocol for distributed, collaborative, hypermedia information

systems. HTTP is the foundation of data communication for the World Wide Web.

Hypertext Transfer Protocol Secure (HTTPS). A combination of the Hypertext Transfer Protocol (HTTP) with

SSL/TLS protocol to provide encrypted communication and secure identification of a network web server. HTTPS

connections are often used for payment transactions on the World Wide Web and for sensitive transactions in

corporate information systems.

hypervisor. Also called virtual machine manager (VMM), one of many hardware virtualization techniques that

allow multiple operating systems, termed guests, to run concurrently on a host computer. It is so named because it is

conceptually one level higher than a supervisory program. The hypervisor presents to the guest operating systems a

virtual operating platform and manages the execution of the guest operating systems.

ID. See user identification (ID).

Imported Media Virtual Machine service level. This is the basic service level offering. It allows clients to recover

their data from physical media such as tape, network-attached storage (NAS), or Universal Serial Bus (USB) devices

(removable media).

InstallShield Wizard. The InstallShield Wizard is a utility that guides you step-by-step through the process of

installing software on your computer.

International Organization for Standards. An international standard-setting body composed of representatives from

various national standards organizations. The organization promulgates worldwide proprietary, industrial and

commercial standards.

Internet Protocol Security (IPSEC). A protocol suite for securing Internet Protocol (IP) communications by

authenticating and encrypting each IP packet of a communication session. IPsec also includes protocols for

establishing mutual authentication between agents at the beginning of the session and negotiation of cryptographic

keys to be used during the session.

Internet Protocol version 4 (IPv4). The fourth revision in the development of the Internet Protocol (IP) and the first

version of the protocol to be widely deployed.

IP Address. A numerical label assigned to each device (that is, computer, printer) participating in a computer

network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or

network interface identification and location addressing.

IPv4 format. See Internet Protocol version 4 (IPv4).

ISO. See International Organization for Standard (ISO).

LAN. See Local Area Network (LAN).

level 3 T-carrier. Also referred to as a T3 line, the data rate for this type of signal is 44.736 Mbit/s.

live server recovery. A recovery type involving the identification and recovery of a Shared Resource Virtual Machine

or Reserved Resource Virtual Machine service level-protected server by site, system type, server name, recovery type,

using a snapshot associated with a point in time (Realtime Target Volume).

Local Area Network (LAN). A network that supplies networking capability to a group of computers in close

proximity to each other such as in an office building.

logical partition (LPAR). A subset of a computer's hardware resources, virtualized as a separate computer. In effect,

a physical machine can be partitioned into multiple logical partitions, each hosting a separate operating system.

LPAR. See logical partition (LPAR).

I•M

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