home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Power Tools 1993 November - Disc 2
/
Power Tools Plus (Disc 2 of 2)(November 1993)(HP).iso
/
hotlines
/
swthl
/
pvinfo
/
pvinfo4.txt
< prev
next >
Wrap
Text File
|
1993-05-18
|
6KB
|
117 lines
*** Questions and answers ***
HP PerfView Questions and Answers
How does HP PerfView relate to HP OpenView?
HP PerfView integrates with HP OpenView. HP OpenView provides
an integrating framework for network and system management
facilities. HP PerfView uses the auto discovery, mapping and
event management services provided by HP OpenView. In this
way, the user is presented with consistent information from
network, system and performance management applications from
within the same graphical user interface.
Does HP PerfView supersede HP network Node Manager?
No. HP Network Node Manager is HP OpenView's network
management application. It is focused on managing the network
aspects of network nodes and connections. It analyzes network
traffic and can detect and isolate network problems such as
duplicate IP addresses. HP PerfView is focused on managing
the performance of the distributed environment. Initially, HP
PerfView manages the performance of the distributed systems
within the network. Future releases will include more
performance information from the network to allow managers to
fully monitor and analyze the performance of distributed
applications.
How does HP PerfView utilize SNMP, MIBs and future management
standards such as CMIP and OSF DME?
HP PerfView is integrated with HP OpenView which is a core
component of the OSF DME specification. As HP OpenView
becomes fully OSF DME compliant, HP PerfView will also become
an OSF DME compliant application. HP PerfView does not use a
Measurement Information Base (MIB) definition or SNMP for
monitoring systems. The Simple Network Management Protocol
(SNMP) was designed for managing intelligent network devices
where there are relatively few defined metrics. A computer
system could have several hundred processes with a large
number of metrics collected for each process. This could mean
a very large overhead on the monitored systems, the central
analysis station and the network if SNMP and a MIB definition
were used for performance management of distributed systems.
HP PerfView uses a standard communications protocol (Berkeley
Sockets) together with patented metric collection technology
to ensure these overheads are minimized. SNMP and in the
future CMIP will be used to monitor and manage network devices
within the network.
How does HP PerfView relate to the SNMP Extensible Agent
available with HP OpenView?
The source of the performance information will be the same for
the Extensible Agent and HP PerfView in the future. The MIB
Browser facility within HP Network Node Manager can be used to
view the performance metrics held in the MIB. This is best
suited to irregular, ad-hoc examination of performance
information. To effectively manage the performance of a large
distributed environment, specialized intelligent collectors
which provide management-by-exception through sophisticated
alarm algorithms, and have low overhead on the managed systems
are required. Performance analysis features such as comparing
the performance of multiple systems are only provided through
the HP PerfView analysis software.
How much overhead does HP PerfView place on the systems and
network?
The underlying concept of HP PerfView is management-by-
exception. The intelligent collector on each monitored system
determines if a performance exception condition exists, and if
so, notifies the central site. This is referred to as
"loosely monitored", and because of the
management-by-exception technique, large numbers of systems
can be monitored without imposing undue overhead on the
network. On each monitored system the CPU overhead is less
than 5% (typically 2-3%) and disk space consumed for
performance logfiles is typically less than 5 megabytes
(averaging about 3-4 in many installations).
What platforms are supported by HP PerfView?
The first release of HP PerfView supports HP-UX, HP MPE and
Sun SPARC systems. We are investigating IBM AIX, OSF, DEC
Ultrix, Novell NetWare and SNMP supported network devices for
future releases. Interfaces will be available which can be
used by third parties to integrate performance management of
IBM mainframes, DEC VAX, IBM AS 400, Tandem and others into
the HP PerfView umbrella.
What network configurations are supported by HP PerfView?
HP PerfView supports TCP/IP LANs and X.25 networks. We will
investigate supporting dial-up networks in future releases.
What makes HP PerfView unique?
HP PerfView is the first performance management solution to
provide a framework for complete enterprise performance
management. It can manage the performance of large
distributed multi-vendor environments. The use of
management-by- exception techniques together with intelligent
collectors and an integrated, hierarchical user interface
provides effective efficient performance management of these
environments. These techniques also allow MIS managers to
identify and correct performance problems in the environment
before users are affected.