alert
– a mechanism for notifying administrators when a managed
resource experiences a status change, or when a performance metric passes a
user-specified threshold.
alert notification
– an indication that an alert has fired. Alert notifications
appear in the Alert Monitor view. If e-mail notification is enabled, alert
notifications are also delivered to the specified e-mail address.
alert storm
– the result of issuing many redundant alerts associated with a
common or root occurrence. See also alert storm suppression.
alert storm suppression
– a Sybase Control Center feature that can be
configured to prevent alert storms by suppressing repeat alert notifications
for a specified period of time.
alert type
– the basis on which an alert fires: state or threshold. State
alerts are triggered by the state of their key performance indicator (for
example, running or stopped), while threshold alerts are triggered when
their KPI’s numerical value passes a specified threshold.
authenticate – when SCC authenticates with a managed resource, it logs in to
the resource with a user ID and password provided by you. SCC must log in to
managed resources in order to gather performance statistics and perform
management tasks. You can choose to have SCC use your current SCC login ID,
or you can provide different credentials.
availability
– indicates whether a resource is accessible and responsive.
collection
– a named, predefined set of key performance indicators for which
values are collected from monitored servers at the same time. Collections
supply the performance and availability data shown on
Sybase Control Center screens and charts. Use the
scheduler to view a list of collections and to control which collections
run, how often they run, and the length of time for which they run.
database – a collection of tables that are related by primary and foreign
keys. The tables hold the information in the database. The tables and keys
together define the structure of the database.
event
– an activity in the system, such as a user logging in, a service
starting or stopping, or a condition changing. Use the alerts feature to
detect and notify you about system events.
heat chart
– a graphical view of resource availability and selected
performance and status metrics for all the registered resources in the
current perspective.
instance – an SCC agent or server run from a shared disk installation. See
also shared-disk mode.
job
– a task performed by the scheduler in
Sybase Control Center.
key performance indicator (KPI) –
a single metric used to evaluate the status or performance of a
monitored resource. A KPI value can be a state (such as running, error, or
stopped) or a numerical value. KPIs are grouped into collections (and also,
for some product modules, into key performance areas, or KPAs). KPI values
are collected by scheduled collection jobs and appear on monitoring screens
and in the statistics and heat charts. Examples of KPIs are resource state
and CPU usage.
key performance area (KPA) –
a group of related key performance indicators.
managed
resource
– see resource.
message row – a row that appears in the right pane of the Administration
Console in place of a slow-responding request, a failed request, or a large
result set. Rows with slow-responding requests are populated as soon as the
data arrives. You can retry failed requests or expand large result
sets—select the row and click the drop-down arrow to see
options.
node – a topology object representing a server or other entity type,
displayed in the form of an icon.
perspective
– a named tab in Sybase Control Center that
displays information related to a collection of managed resources (such as
servers) and a set of views associated with those resources. The views in a
perspective are chosen by users of the perspective. You can create as many
perspectives as you need, and customize them to monitor and manage your
resources. Perspectives allow you to group resources in ways that make sense
in your environment—for example by location, department, or project.
product module – a
plug-in component of Sybase Control Center that manages and
monitors a particular Sybase product. SCC product modules are available for
Adaptive Server, Data
Assurance (a Replication Server option), replication (Replication Server,
Replication Agent, and Mirror Replication Agent), Sybase Event Stream Processor, and
SAP Sybase IQ.
repository
– a database in Sybase Control Center that stores
information related to managed resources, along with user preference data,
operational data, and performance statistics.
resource
–
a server,
agent, or other entity that can be monitored or administered by
Sybase Control Center. Resources SCC can manage include
Adaptive Server, Data
Assurance Server, Replication Server, Replication Agent, Mirror Replication Agent,
Sybase Event Stream Processor, SAP Sybase IQ, and certain subcomponents.
SCC-enabled login account
– a user account that has been granted privileges in
Sybase Control Center by mapping appropriate
Sybase Control Center roles. (Roles are typically mapped
to a group to which the account belongs rather than to the account itself.)
The user account and group can be native to
Sybase Control Center or created in the operating system
or the LDAP directory service to which Sybase Control Center
authentication is delegated. You must use an SCC-enabled account to log in
to Sybase Control Center.
SCC agent – a remote command and control agent for
Sybase Control Center that runs on a managed server. The
SCC agent is installed automatically as part of the Sybase server.
schedule
– the definition of a task (such as the collection of a set of
statistics) and the time interval at which
Sybase Control Center executes the task.
screen refresh interval – the period in seconds between refreshes of screens in the
monitor views (ESP Node Monitor and ESP Cluster Monitor). Refreshing a
screen redraws it with the most recent available data. Set the screen
refresh interval on the Settings screen of either monitor view. See also
collection repeat interval.
shared-disk mode – a feature that enables multiple instances of
Sybase Control Center to execute from a single
installation on a shared disk. Instances can be SCC servers, agents, or a
mixture of the two.
singleton
installation – a Sybase Control Center installation that runs
a single SCC agent or server. Contrast with instance; see also shared-disk
mode.
store – a store is one or more dbspaces that store persistent or
temporary data for a special purpose. See catalog store, main store, or
temporary store.
trend period – See chart trend period.
view (SCC)
– a window in a Sybase Control Center perspective
that displays information about one or more managed resources. Some views
also let you interact with managed resources or with SCC itself. For
example, the Perspective Resources view lists all the resources managed by
the current perspective. Other views allow you to configure alerts, view the
topology of a replication environment, and graph performance
statistics.