HP XC System Software Release Notes for Version 3.1

Table 1-1 Upgrade Types
DescriptionUpgrade Type
You perform a major upgrade on systems that are installed with an HP XC release
that is based on an older version of Enterprise Linux (for example Enterprise
Linux 3 [EL3]) and the new HP XC release is based on the next Enterprise Linux
release version (for example, EL4).
Major
You perform a minor upgrade when the new HP XC release is based on the same
version of the Enterprise Linux (EL) operating system that is currently installed
on the system.
For example, a minor upgrade enables you to upgrade the HP XC system from
an HP XC release that is based on EL4 Update 3 to an HP XC release that is based
on EL4 Update 4.
Minor
The software upgrade procedure is documented in the HP XC System Software Installation Guide.
1.13 System Management and Monitoring Enhancements
System management and monitoring utilities have been enhanced as follows:
• The following enhancements were made to the Nagios system monitoring utility:
— The ipmitool is now used to collect sensor data on HP Integrity hardware models
— Nagios now monitors the system event log (SEL) on systems with Integrated Lights
Out (iLO) and IPMI and generates alerts based on patterns in the
/opt/hptc/nagios/selRules file.
— Nagios now provides the ability to selectively archive sensor metrics.
— The /opt/hptc/nagios/etc/selRules file contains rules for matching hardware
event log messages. By default, rules are applied every five minutes to messages received
since the last run.
— Enhanced host checking allows Nagios to more efficiently determine host status.
— You can create a Nagios user account and UID before invoking the cluster_config
utility, which greatly simplifies the account creation procedure
— By default, Nagios now uses nsca rather than ssh to forward data from Nagios monitor
nodes to the Nagios master, thereby lowering system overhead and increasing efficiency.
— A mechanism has been introduced to allow the Nagios configuration to include or
exclude template configuration options other then the default, nagios.
— The /opt/hptc/nagios/etc/syslogAlertRules file contains rules for matching
consolidated log messages. Rules are applied every five minutes to messages received
since the last run.
— A global service event handler provides the infrastructure to allow you to act on service
state change events. This feature is disabled by default. To enable it, you must write
event handler action scripts and installation scripts.
For example, an event handler script can take site specific actions such as removing a
node from a batch queue when specific alerts or conditions are met.
— The Nagios templates in /opt/hptc/nagios/etc/templates/*_template.cfg
files can be modified to add or remove definitions.
• Disk monitoring is accomplished with the smartd daemon, which monitors the
Self-Monitoring, Analysis, and Reporting Technology (SMART) system that is built into
many ATA, IDE, and SCSI disks.
• The mdadm utility monitors software RAID sets.
1.13 System Management and Monitoring Enhancements 23