HP XC System Software Administration Guide Version 4.0

information in an obscured form instead of in the plain text form used by the r* UNIX telnet
and ftp commands.
For security purposes, use the ssh command instead of these other, much less secure alternatives.
To use ssh without password prompting with a user account, you must set up ssh authentication
keys. For information on configuring the ssh keys, see “Configuring the ssh Keys for a User”
(page 161).
1.11 Recommended Administrative Tasks
Table 1-4 lists recommended administrative tasks. Consider these recommendations when
establishing a site policy for administering your HP XC system.
Table 1-4 Recommended Administrative Tasks
ReferenceTaskWhen
N/ACreate a system log book for monitoring
configuration changes to your system.
Once, after initial installation
and configuration
Chapter 7: “Monitoring the
System” (page 85)
Run the ovp utility.
Run the sys_check command to establish a
baseline.
Run the dgemm command to detect any nodes that
are not performing at their peak performance.
Chapter 4: “Managing and
Customizing System Services”
(page 57)
Consult the Nagios Web interface to monitor the
system status.
Frequently
Chapter 6: “Managing the
Configuration and
Management Database”
(page 79)
Monitoring the System
Ensure that the following services are running:
• Nagios
• Supermon
• syslog
• syslogng-forward
Back up the head node's disks.Regularly
Chapter 20: “Using Diagnostic
Tools” (page 233)
Back up the configuration and management
database.
Archive or purge metrics data from the
configuration and management database; a cron
script is provided for this purpose
Chapter 11: “Distributing
Software Throughout the
System” (page 141)
Run the sys_check utility at a time that does not
interfere with users' jobs.
Run the dgemm utility to detect any nodes that are
not performing at their peak performance.
For systems that use the Myrinet system
interconnect, run the gm_drain_test when it
does not interfere with users' jobs.
For systems that use the Quadrics system
interconnect, run the qsnet2_drain_test when
it does not interfere with users' jobs.
Chapter 7: “Monitoring the
System” (page 85)
Monitor the /hptc_cluster/adm/logs/
consolidated.log for potential errors.
42 HP XC Administration Environment