OVNPM 1.5.2 - Performance Agent for NonStop Server Management Guide

Glossary 99
D
DSN DSN stands for Distributed Server for Navigator. Distributed Navigator (DSN) gives
user access to OVNPM subsystems installed on multiple remote HP NonStop nodes
from a single Internet browser. These nodes must be part of an HP NonStop EXPAND
network.
DSVENV The macro SV_INSTALL_DSV generates the DSV environment. This process saves the
environment in the file DSVENV. This file is read by the macro VISLOAD that creates
the DSV environment.
DSVCFG DSV configuration, which consists of the list of nodes. This information is saved in the
file DSVCFG.
DSNENV DSN environment, which includes the name, CPU, priority of DSN processes. This
information is saved in the file DSNENV.
DSNCFG DSN configuration, which consists of the list of nodes. This information is saved in the file
DSNCFG.
DashboardA dashboard is a set of OVNPM views and reports that can be managed
as a group.
DSM Distributed System Management
DBR DBR or Database Reader reads OVNPM database for data extraction.
DBS DBS or Database Server manages the OVNPM database.
E
EMS EMS stands for Event Management Service.
Environment The OVNPM Environment defines the system resources needs of OVNPM, that is; process name,
processors, TCP/IP port and volumes & subvolumes. The Environment is defined during
installation phase.
Notice the difference between OVNPM environment and OVNPM configuration. See
Configuration (OVNPM configuration).
F
FTP FTP stands for File Transfer Protocol. FTP helps in transferring files from one computer to another
using the FTP server service.
Firewall A security system consisting of a combination of hardware and software that limits the
exposure of a computer or computer network to attack from crackers; commonly used
on local area networks that are connected to the internet.
Filesize Domain FILESIZE represents features of a disk file.
Floating AverageOVNPM makes accurate predictions based on the most recent past behavior
using the Floating Average. Metrics are collected at regular intervals and the most
recent collection set is used to calculate the average.
File Scanning The File Scanning module scans all the files defined in the [FileScan] section of the
configuration file XCFGFIL, examines the full.% and the free-extent.nb metrics of each
file, and sends an alert if the full.% or the free-extent.nb metrics reach the defined
threshold. It checks if the files defined in the [FileAvailability] section are present or
not and sends an alert for each missing file. It also counts the files defined in the
[FileCount] section and checks if the number of files has reached the defined threshold
or interval. If the threshold has been reached, it sends an alert
FileScan The [FileScan] section defines the files that are monitored for size and extent, and any
exceptions to the default thresholds. Files can be defined individually and as entire
subvolume content. In the second case, it defines the files to be excluded from
monitoring.
Glossary