IBM DS8000 User Manual page 225

hop Interswitch connection. A hop count is the
number of connections that a particular
block of data traverses between source
and destination. For example, data
traveling from one hub over a wire to
another hub traverses one hop.
host See host system.
host adapter
A physical subunit of a storage server that
provides the ability to attach to one or
more host I/O interfaces.
host name
The Internet address of a machine in the
network. The host name can be entered in
the host definition as the fully qualified
domain name of the attached host system,
such as mycomputer.city.company.com, or
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, System z) or of the
open-systems type, that is connected to
the DS8000 series. Hosts are connected
through ESCON, FICON, 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.
See high-speed loop.
HSL
HyperPAV (IBM HyperPAV)
An optional licensed function that you
can use in conjunction with the parallel
access volumes (PAV) function. IBM
HyperPAV associates the volumes with
either an alias address or a specified base
logical volume number. When a host
system requests IBM HyperPAV
processing and the processing is enabled,
aliases on the logical subsystem are
placed in an IBM HyperPAV alias access
state on all logical paths with a given
path group ID. IBM HyperPAV is only
supported on FICON channel paths.
i5/OS The IBM operating system that runs the
System i family of products.
IBM HyperPAV
See HyperPAV.
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 System Storage
The brand name used to identify storage
products from IBM, including the IBM
System Storage DS8000 series. See also
IBM System Storage DS8000 and IBM
System Storage DS Storage Manager.
IBM System Storage DS8000
A member of the IBM System Storage
Resiliency Family of storage servers and
attached storage devices (disk drive
modules). The DS8000 series storage
product 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 System Storage DS CLI
The command-line interface (CLI) that
works with DS8000, DS6000, and 2105
models.
IBM System Storage DS Storage Manager (DS
Storage Manager)
Software with a Web-browser interface for
configuring the DS8000 series.
IBM System Storage Management Console
(MC) An IBM workstation that acts as the focal
point for configuration, Copy Services
management, and maintenance for the
DS8000 series. It includes a Web browser
that provides links to the user interface,
197
Glossary