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Partitioning provides the ability to subdivide system resources
into isolated regions that operate independently from each other
(the equivalent of a box within a box). HP is the only high-end
UNIX offering to provide a broad range of solutions designed to
meet the diverse needs of our customers. Changes to these solutions
are described in the following sub-sections: HP Process
Resource Manager | |
HP Process Resource Manager (PRM) version C.02.02 provides
an efficient and flexible way to manage resource allocation at times
of peak system load. It gives the system administrator the ability
to group users or processes together and guarantee each group minimum
amounts of the total CPU, real memory, and disk bandwidth available. PRM version C.02.02 includes the following: Many
PRM commands now support a version option -V xprm now supports SSL encryption of login/password data and
xprm operations (encryption is disabled by default) prmmove and prmrun display data in a wide-column format by default when
you do not specify any options syslog messaging is more consistent prmconfig -k behavior has been modified (For information
on what groups processes are moved to, see the prmconfig(1) manpage.) The disk bandwidth manager
is now disabled when not needed by the configuration prmmonitor updates its output as expected, even when running in
continuous mode as a nonroot user and a new configuration is loaded
If you desire SSL encryption, you should read the xprm(1) manpage
for information. There are no known compatibility issues. PRM is designed to set resource allocations (CPU, memory,
disk bandwidth) for applications. Misconfiguration can result in
degradation. For further information, refer to the following sources for
documentation: HP-UX Workload
Manager | |
HP-UX Workload Manager (WLM) version A.02.02 provides goal-based
workload management. This management enables automatic resource
allocation and application performance management through the use
of prioritized service-level objectives (SLOs). It provides this
functionality by automating features of HP-UX Virtual Partitions,
Node Partitions, Processor Sets, and HP Process Resource Manager
(PRM). HP-UX WLM version A.02.02 includes the following: New GUI
that allows local and remote management of WLM systems Automatic resizing of node
partitions (nPars) that use iCOD software Configuration Wizard supports
more WLM configuration options PSET-based workload groups
with no active SLOs have their CPU count reduced to zero cpushares keyword supports an offset To support nPars in addition
to vPars: wlminfo's vpar command has changed to par wlmpard's -l vpar is now -l par
New cntl_smooth keyword allows you to get a running average of a metric
from a data collector, smoothing out dips and spikes in the metric
before it is used by WLM perl is expected to be in
/opt/perl/bin/ New variables in /etc/rc.config.d/wlm file to support new communications daemon, wlmcomd New example configurations
for transient groups and for vPar and nPar management in /opt/wlm/examples/wlmconf Passive mode now supports
auditing
WLM A.02.02 includes the following impacts: Enhanced
Wizard and new GUI simplify configuring WLM nPar resizing opens new possibilities
in partition management PSET-based groups with no
active SLOs now get 0 CPUs, allowing CPUs to be used elsewhere With the new cntl_smooth keyword, you are advised to transition away from the
smooth and expsmooth utilities WLM scripts that use perl
now require perl to be in /opt/perl/bin/ instead of /usr/contrib/bin/ If you have modified /etc/rc.config.d/wlm, you should merge the new file (/opt/wlm/newconfig/etc/rc.config.d/wlm) with your /etc/rc.config.d/wlm file
WLM scripts
that use perl now require perl to be in /opt/perl/bin/ instead of /usr/contrib/bin/ If you have modified /etc/rc.config.d/wlm, you should merge the new file (/opt/wlm/newconfig/etc/rc.config.d/wlm) with your /etc/rc.config.d/wlm file
Performance is improved when WLM is used properly, but can
degrade when WLM is not configured appropriately. For further information, refer to the following sources for
documentation: HP-UX Workload
Manager Toolkits (WLMTK) | |
The Workload Manager Toolkits (WLMTK) product version A.01.05
enhances functionality provided by WLM and simplifies the integration
of various products with WLM. These products include Apache, Oracle
database instances, Pay Per Use, SAS, SNMP, and WebLogic. Utilities now use /opt/perl/bin/perl The wlmoradc and smooth utilities, part of ODBTK, now use /opt/perl/bin/perl. Similarly, the expsmooth utility, part of WebLogicTK, also uses /opt/perl/bin/perl now. Formerly, all these utilities used /usr/contrib/bin/perl. Installation now produces a warning if /opt/perl/bin/perl is not present on the system When installing WLM on a system where /opt/perl/bin/perl is not present: The following message appears in output
and in the file /var/adm/sw/swinstall.log: * "hostname:/": 1 configure or unconfigure scripts had warnings. The following message appears in the file /var/adm/sw/swagent.log: WARNING: Unable to locate /opt/perl/bin/perl. Install HP Perl 5.6.1 or later in order to use the provided Perl scripts.
ApacheTK begins supporting
Apache 2.x (For Apache 1.3.x support, use an earlier ApacheTK release) Starting with WLM A.02.02,
WLM offers a cntl_smooth configuration file keyword. It is recommended that you
use the cntl_smooth WLM keyword instead of the smooth tool and the expsmooth tool. For information on cntl_smooth, see the wlmconf(4) manpage. For optimal performance when
managing Oracle instances, be sure your wlm_interval (set in the WLM configuration) is at least 10 seconds. utilitydc has been modified as indicated below: It now supports the activation
and deactivation of Temporary iCOD resources based on your SLOs. It now allows you to specify
a minimum number of processors to keep active on a system. Even
it utilitydc determines the system's SLOs can be met with fewer processors,
a certain number of processors can always be kept active. For more information,
see the -m option in the utilitydc(1M) manpage.
If you use wlmoradc, smooth, or expsmooth and do not have perl installed in /opt/perl/bin/, you will need to install HP Perl 5.6.1 or later. If you are using ApacheTK, updating to WLMTK A.01.05's ApacheTK
requires Apache 2.x. You should transition away from using the smooth and expsmooth utilities and begin using the cntl_smooth configuration keyword. There are no known compatibility issues. There are no known performance issues. For further information, refer to the following sources for
documentation: nPartition
Provider | |
The nPartition Provider is the HP-UX WBEM Services provider
for nPartition-related information on partitionable systems. The
nPartition Provider was a new product with HP-UX 11i v2. This product
is used by Partition Manager and the partition commands to configure
and manage HP systems that support nPartitions. With this component, partitionable
systems can be managed both locally and remotely. The nPartition Provider
product is only used through a WBEM interface. It is not invoked
directly by the user. In version B.01.02.00.02, several minor defects were fixed
to improve the overall quality of the product. This release of the nPartition Provider is supported on all
HP server systems that support nPartitions and HP-UX 11i v2 (B.11.23). There are no known compatibility issues. You should be aware of the following items that may affect
performance: When
managing a remote partitionable complex, the performance degrades
when the connection traverses long network distances, e.g., managing
a partitionable complex in California from a system in New York.
Furthermore, when managing a remote system, performance can be improved
by connecting to an nPartition Provider on the remote system, rather
than connecting directly to the system's service processor. The nPartition Provider maintains
a cache of information about systems being managed. This cache is
cleared when the nPartition Provider is unloaded by the CIM server.
Performance may be reduced when managing a system for the first
time, or immediately after the CIM server has been restarted. Subsequent
management sessions of the same system will be faster.
Complete information is in the nPartition provider product
data sheet, installed as /opt/nparprovider/doc/nParProviderDataSheet.html Partition Manager | |
Partition Manager provides system administrators with a convenient
graphical user interface for configuration and management of nPartitions
on HP server systems. In addition, Partition Manager enhances the
reliability and performance of HP partitioning products by providing
automatic detection of several types of configuration problems. Partition Manager is a Web-based application that can be launched
from Servicecontrol Manager 3.0, System Administration Manager (SAM),
or as a stand-alone product. Customers interact with Partition Manager
through a Web browser running on their client workstation or PC. Partition Manager version B.11.23.02.00.02 is an update to
the new version of Partition Manager that was released with HP-UX
11i v2 (B.11.23). That was the first version of Partition Manager
for Itanium®-based systems,
and provided a new, more graphical user interface, support for cell
local memory (CLM), and configuration of nPartitions on remote complexes. Several minor defects were fixed to improve the overall quality
of the product. In addition, the following functionality changes
were made: At startup,
Partition Manager will check the complex for possible configuration problems.
If potential problems are found, the “analyze complex health” action
will be displayed before proceeding to the initial view. By default, Partition Manager now validates SSL
certificates sent from the CIM server. Certificate validation can
be disabled if SSL security is not important in your environment. This change was first reported in HP Security Bulletin SSRT3636
(document id: HPSBUX0311-296), which is available from the IT Resource
Center at http://itrc.hp.com. For more information, refer to the “cimserver” and “managing
SSL certificates” sections of the Partition Manager online
help at /opt/hpwebadmin/webapps/mxhelp/parmgr/en/starting.html
This release of Partition Manager is supported on all Itanium-based
server systems that support nPartitions. This update improves your ability to create and maintain reliable
nPartition configurations, and increases the security of WBEM connections
to remote nPartitions. Additional steps may be required by you in order to validate
SSL certificates. These steps are detailed in the online help at /opt/hpwebadmin/webapps/mxhelp/parmgr/en/starting.html#cimserver There are no known compatibility issues. You should be aware of the following items that may affect
performance: When
managing a remote partitionable complex, the performance degrades
when the connection traverses long network distances, e.g. managing
a partitionable complex in California from a system in New York.
Furthermore, when managing a remote system, performance can be improved
by connecting to an nPartition Provider on the remote system, rather
than connecting directly to the system's service processor. A noticeable delay may occur
at startup, and the first time that each Partition Manager view
is displayed. This is due to the initial compilation of the Java
Server Pages by the HP-UX Tomcat-based Servlet Engine. This compilation
occurs the first time that a view is displayed after the Servlet
Engine is started or restarted. Once a given view has been displayed,
subsequent displays of that view will be significantly faster. When managing a remote system,
possible performance improvements can be obtained by running the
Web browser on the local system, instead of running the browser
remotely to a local X Server. The nPartition Provider
[8] maintains
a cache of information about systems being managed. This cache is
cleared when the nPartition Provider is unloaded by the CIM server.
Performance may be reduced when managing a system for the first
time, or immediately after the CIM server has been restarted. Subsequent
management sessions of the same system will be faster.
The primary documentation for this product consists of a set
of HTML online help files. The online help is accessed through context-sensitive
help links in Partition Manager, and also can be viewed outside
of the product by pointing a Web browser to /opt/hpwebadmin/webapps/mxhelp/parmgr/en/overview.html The parmgr command (which can be used to start or stop Partition
Manager) is documented in the parmgr(1M) manpage that is included
with the product. Both English and Japanese versions of the manpage
are included. The latest release of Partition Manager can be downloaded
for free from the HP Web at http://software.hp.com/portal/swdepot/displayProductInfo.do?productNumber=ParMgr |
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