HP StorageWorks XP Replication Monitor software installation and configuration guide (T1784-96008, November 2006)

Appendix B Glossary 118
copy pair status is error or suspend.
CU (Control Unit) A virtual control unit created in a storage subsystem of XP12000/XP10000/SVS200,
XP1024/XP128, and XP512/XP48 series systems. Also called a CU image.
The LDEVs created in a storage subsystem are connected to a single CU, and a number is
assigned to each CU for identifying the LDEVs. Therefore, volumes (LDEVs) in a storage
subsystem are specified by the CU number (CU#) and LDEV number.
Device Manager Software used for the operation and/or management of a system that uses multiple or different
types of storage subsystems. Device Manager consists of a Device Manager server and a
Device Manager agent.
DEVN (Device
Number)
A device number that is assigned to identify an LDEV when it is being used by a mainframe
system. A DEVN is expressed as a 4-digit hexadecimal number.
host The machine on which application programs are installed. Also called the application server.
host storage
domain
A group of volumes (LUs) in a storage subsystem and the hosts that can access those LUs. A
host storage domain is defined to improve LU security. Device Manager can be used to define
a host storage domain using the host group set by the Secure Manager XP function of a
storage subsystem, such as XP12000/XP10000/SVS200 or XP1024/XP128.
installation related
trace log file
A log file of detailed processing information generated during installation and uninstallation of
XP Replication Monitor software. Used to trace the source of errors that occur during
installation and uninstallation.
journal group A group used in Continuous Access XP Journal as a unit to keep the integrity of the update
order for a volume.
LDEV (Logical
Device)
A volume created in a storage subsystem of a XP12000/XP10000/SVS200, XP1024/XP128,
or a XP512/XP48 series system. Also called a logical device.
LU (Logical Unit) When an LDEV volume created in a storage subsystem of an XP12000/XP10000/SVS200,
an XP1024/XP128, or an XP512/XP48 series system is used from an open system host, it is
treated as an LU.
LUN (Logical Unit
Number)
A management number assigned to LUs in a storage subsystem.
A LUN is a number assigned to identify LUs for the port in the storage system to which the LU is
connected, either by port or by host group assigned to the port. An open system host uses a
LUN to access a particular LU.
management client The machine on which the XP Replication Monitor web client is executed. Issues instructions to
the XP Replication Monitor server on the management server for basic XP Replication Monitor
software operations, such as pair configuration browsing, pair status monitoring and pair
status modification.
management server The machine on which a XP Replication Monitor server and its prerequisite program, a Device
Manager server, are installed. The management server requests information such as copy pair
configuration and status information and host information from all pair management servers
and hosts, and provides this information to management clients.
MIB(Management
Information Base)
The structure of information used by the SNMP protocol is defined. The MIB used for XP
Replication Monitor software defines the information set for alerts, such as monitored targets,
conditions, and messages.
most significant pair
status, displaying
By displaying only the most significant copy pair status in the upper levels that contain the
copy pairs (such as at the host level from the host perspective, or at the storage subsystem level
from the subsystem perspective), XP Replication Monitor software allows viewers to quickly
check copy pair status. XP Replication Monitor software determines the most significant copy
pair status for each copy function (such as Business Copy XP and Continuous Access XP
Synchronous) in turn.
pair In this manual, pair means copy pair.
pair management
server
A server for managing copy pairs and for collecting information about copy pair configuration
and status.
In an open system, a Device Manager agent, RAID Manager XP, and a XP Replication Monitor
agent are installed on the pair management server. Once a pair management server, which is
independent of the host, is installed, the load on the host is reduced.
In a mainframe system, a host on which Business Continuity Manager is installed is a pair