6.3 HP StoreAll 9300/9320 Storage Administrator Guide (AW549-96072, June 2013)

Maintaining the Statistics tool
Space requirements
The Statistics tool requires about 4 MB per hour for a two-node cluster. To manage space, take
the following steps:
• Maintain sufficient space (4 GB to 8 GB) for data collection in the /usr/local/statstool/
histstats directory.
• Monitor the space in the /local/statstool/histstats/reports/ directory. For the
default values, see “Changing the Statistics tool configuration” (page 103).
Updating the Statistics tool configuration
When you first configure the Statistics tool, the configuration includes information for all file systems
configured on the cluster. If you add a new node or a new file system, or make other additions to
the cluster, you must update the Statistics tool configuration. Complete the following steps:
1. If you are adding a new file serving node to the cluster, enable synchronization for the node.
See “Enabling collection and synchronization” (page 99) for more information.
2. Add the file system to the Statistics tool. Run the following command on the node hosting the
active Fusion Manager:
/usr/local/ibrix/stats/bin/stmanage loadfm
The new configuration is updated automatically on the other nodes in the cluster. You do not
need to restart the collection process; collection continues automatically.
Changing the Statistics tool configuration
You can change the configuration only on the management node. To change the configuration,
add a configuration parameter and its value to the /etc/ibrix/stats.conf file on the currently
active node. Do not modify the /etc/ibrix/statstool.conf and /etc/ibrix/
statstool.local.conf files directly.
You can set the following parameters to specify the number of reports that are retained.
Default Retention PeriodReport Type to retainParameter
1 dayHourly reportage.report.hourly
7 daysDaily reportage.report.daily
14 daysWeekly reportage.report.weekly
7 daysUser-generated reportage.report.other
For example, for daily reports, the default of 7 days saves seven reports. To save only three daily
reports, set the age.report.daily parameter to 3 days:
age.report.daily=3d
NOTE: You do not need to restart processes after changing the configuration. The updated
configuration is collected automatically.
Fusion Manager failover and the Statistics tool configuration
In a High Availability environment, the Statistics tool fails over automatically when the Fusion
Manager fails over. You do not need to take any steps to perform the failover. The statistics
configuration changes automatically as the Fusion Manager configuration changes.
Maintaining the Statistics tool 103