IBM 2145UPS-1U Hardware Installation Manual page 203

machine can use this link to place a call to IBM or to another service
provider when service is required. With access to the machine, service
personnel can perform service tasks, such as viewing error and problem
logs or initiating trace and dump retrievals.
cascading
The process of connecting two or more fibre-channel hubs or switches
together to increase the number of ports or extend distances.
CIM See Common Information Model.
CIM object manager (CIMOM)
The common conceptual framework for data management that receives,
validates, and authenticates the CIM requests from the client application. It
then directs the requests to the appropriate component or service provider.
CIMOM
See CIM object manager.
class The definition of an object within a specific hierarchy. A class can have
properties and methods and can serve as the target of an association.
See command line interface.
CLI
client A computer system or process that requests a service of another computer
system or process that is typically referred to as a server. Multiple clients
can share access to a common server.
client application
A storage management program that initiates Common Information Model
(CIM) requests to the CIM agent for the device.
cluster
In SAN Volume Controller, up to four pairs of nodes that provide a single
configuration and service interface.
command line-interface (CLI)
A type of computer interface in which the input command is a string of
text characters.
Common Information Model (CIM)
A set of standards developed by the Distributed Management Task Force
(DMTF). CIM provides a conceptual framework for storage management
and an open approach to the design and implementation of storage
systems, applications, databases, networks, and devices.
concurrent maintenance
Service that is performed on a unit while it is operational.
In SAN Volume Controller, the ability for one node in the cluster to be
turned off for maintenance without interrupting access to the VDisk data
provided by the cluster.
configuration node
A node that acts as the focal point for configuration commands and
manages the data that describes the cluster configuration.
connected
In a Global Mirror relationship, pertaining to the status condition that
occurs when two clusters can communicate.
consistency group
A group of copy relationships between virtual disks that are managed as a
single entity.
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Glossary