as the subname of the fully qualified domain name, for example, mycomputer. See also host system.

host processor

A processor that controls all or part of a user application network. In a network, the processing unit in which the data communication access method resides. See also host system.

host system

A computer, either of the mainframe (for example, zSeries) or of the open-systems type, that is connected to theDS8000. zSeries hosts are connected to the DS8000 through ESCON interfaces. Open-systems hosts are connected to the DS8000 by SCSI or fibre-channel interfaces.

hot plug

Pertaining to the ability to add or remove a hardware facility or resource to a unit while power is on.

HSL See high-speed link.

HSM See hierarchical storage management or Hardware Service Manager.

I

i5/OS The IBM operating system that runs the IBM i5/OS and e(logo)Server i5 server families of servers.

IBM e(logo)server

The IBM brand name for a series of server products that are optimized for e-commerce. The products include the iSeries, pSeries, xSeries, and zSeries.

IBM product engineering (PE)

The third-level of IBM service support. Product engineering is composed of IBM engineers who have experience in supporting a product or who are knowledgeable about the product.

IBM Serial Storage adapter

A physical adapter based on the IBM Serial Storage architecture. IBM Serial Storage adapters connect disk drive modules to DS8000 clusters.

IBM TotalStorage

The brand name used to identify storage products from IBM, including the IBM TotalStorage DS8000. See also IBM

TotalStorage DS8000 and IBM

TotalStorage DS Storage Manager.

IBM TotalStorage DS8000

A member of the IBM TotalStorage Resiliency Family of storage servers and attached storage devices (disk drive modules). The DS8000 delivers high-performance, fault-tolerant storage and management of enterprise data, affording access through multiple concurrent operating systems and communication protocols. High performance is provided by multiple symmetrical multiprocessors, integrated caching, RAID support for the disk drive modules, and disk access through a high-speed serial storage architecture interface.

IBM TotalStorage DS CLI

The command-line interface (CLI) that is specific to the DS8000.

IBM TotalStorage DS Storage Manager (DS Storage Manager)

Software with a Web-browser interface for configuring the DS8000.

IBM TotalStorage Enterprise Storage Server Network (ESSNet)

A private network providing Web browser access to the Enterprise Storage Server. IBM installs the ESSNet software on an IBM workstation called the IBM TotalStorage ESS Master Console, supplied with the first ESS delivery.

IBM TotalStorage Management Console (MC) An IBM workstation that acts as the focal point for configuration, Copy Services management, and maintenance for the DS8000 . It includes a Web browser that provides links to the user interface, including the DS Storage Manager and the DS8000 Copy Services.

IBM TotalStorage Multipath Subsystem Device Driver (SDD)

Software that is designed to support the multipath configuration environments of the DS8000. The SDD resides in a host system with the native disk device driver.

IBM TotalStorage Resiliency Family

A set of hardware and software features and products, as well as integrated software and services that are available on theIBM TotalStorage DS8000 and the

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IBM DS8000 Host processor, Host system, Hot plug, IBM elogoserver, IBM product engineering PE, IBM Serial Storage adapter