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Space Check Thresholds for the CommServe
Space Check Thresholds for the Software Installation and System Directories
Space Check for the Quick Recovery and ContinuousDataReplicator Agents
The Space Check feature monitors consumed space and free space remaining, for components which are integral to the operation of the software, and where limited space may cause operations to go into an unstable state. This monitoring includes the following:
An event is generated in the Event Viewer when limited space and consumed space are detected for those directories. A Disk Space Low alert, if configured, will be generated if the disk space falls below the defined threshold.
If the disk space where the CommServe software is installed is less than 75MB, no new jobs will be initiated and no new phases will be started for running jobs. If the free space is less than 25MB, all the existing jobs will be killed by the system.
The Database Space Check thresholds generate events and alerts if there is insufficient disk space for the CommServe Database to grow. Events are generated when the Database disk space is below the defined Information, Minor, Major, and Critical thresholds. The Disk Space Low alert, if configured, is only generated when the CommServe Database disk space falls below the defined Critical threshold.
The Database Space Check Interval and the Database Space Check Thresholds are configured in the System dialog box from the Control Panel. Changes to the Database Space Check Interval take effect immediately.
The Database Space Check Interval allows you to specify the frequency in which the CommServe Database Installation Directory is monitored to determine if there is insufficient disk space for the CommServe Database to grow. By default, the Database Space Check Interval is set at a one-hour frequency.
The Space Check thresholds are configurable through the use of the registry keys for each computer within the CommCell. Use the Space Check registry keys to define the software installation and system directories' Space Check thresholds for the minimum space that should be available and the maximum space that should be consumed. If the disk free space of the directory meets the criteria defined by the Space Check registry values, an event is generated, and a Disk Space Low alert is sent, if configured.
The following directories are automatically monitored:
The Space Check Interval is configurable through the use of registry keys for each computer. By default, the Space Check monitors the directories every six hours on the CommServe, once per day on the remote machines, and when services are started on any of the computers within the CommCell.
Changing the Space Check Interval will take effect when the services are restarted or at the next monitoring interval.
The following registry keys can be created for Windows, NetWare and Unix computers:
| Registry Key | Purpose |
| bCHECK_GALAXY | Specifies if the space requirements for the software installation and system directories such as the installation directory, JobResults, or Index Cache are checked. |
| bCHECK_SYSTEM | Specifies if the space requirements specified for the system directories such as the %TEMP% directory for Windows computers and tmp or var directories for Unix computers are checked. |
| bUSE_EVENTS | Specifies if the space check events should be sent to the Event Viewer. |
| bCHECK_AUTOUPDATES | Specifies if the CommServe CVD will contact the configured Automatic Updates FTP site at six-hour intervals (360 minutes) to check if the CommServe Update Cache is up-to-date. If updates are missing, and the automatic update configuration is set to download the updates, the missing updates will be downloaded to the CommServe Update Cache. |
| nMACHINE_MAINT_INTERVAL_MINUTES | Specifies the interval (in minutes) that the
system checks the following:
See Updates Available to Download, Release Upgrade Required, Service Pack Required; and Disk Space Low alerts for Clients, MediaAgents, and the CommCell. |
| nGALAXY_MIN | Sets the threshold for the minimum space that should be available in the drive where the software is installed. An alert notification can be sent if configured in the CommCell Console. See Clients, MediaAgents and CommCell Disk Space Low alerts. |
| nGALAXY_MAX | Sets the threshold for the maximum space that should be consumed in the software installation directory. |
| nGALAXYTEMP_MIN | Sets the threshold for the minimum space that should be available in the drive where the software Temp directory resides. See Clients, MediaAgents and CommCell Disk Space Low alerts. |
| nGALAXYTEMP_MAX | Sets the threshold for the maximum space that should be consumed in the software Temp directory. |
| nSYSTEMP_MIN | Sets the threshold for the minimum space that should be available in the drive where the System Temp directory resides. See Clients, MediaAgents and CommCell Disk Space Low alerts. |
| nSYSTEMP_MAX | Sets the threshold for the maximum space that should be consumed in the System Temp directory. |
| nJOBRESULTS_MAX | Sets the threshold for the maximum space that
should be consumed in the JobResults directory. This registry key is used to set alerts when space used crosses the limit specified by this key. This does not limit the actual size of job results folder. |
| nIDA_MIN | Sets the threshold for the minimum space that should be available in the drive where the iDataAgent directory resides. See Clients, MediaAgents and CommCell Disk Space Low alerts. |
| nIDA_MAX | Sets the threshold for the maximum space that should be consumed in the iDataAgent directory. |
| nSYSVAR_MIN | Sets the threshold for the minimum space that should be available in the var volume on a Unix computer. See Clients and MediaAgents Disk Space Low alerts. |
| nSYSVAR_MAX | Sets the threshold for the maximum space that should be consumed in the var volume on a Unix computer. |
For computers with either the Quick Recovery Agent or ContinuousDataReplicator installed, in addition to the monitoring already described, additional monitoring is performed, to help avoid a situation where the snapshots are deleted because maximum space on the COW cache volume or Recovery Point volume has been exceeded.
If the remaining free space on any monitored volume or mount point is less than 20% when checked, an event is generated, and a Disk Space Low Alert is sent by email or to a pager, if so configured. When configuring this Alert, include the <DISK SPACE INFO> Alert Token in the email/pager notification, so that meaningful data is included in the alert message. To configure an alert, see Alerts - How To.
The Space Check Interval is configurable through the use of the nMACHINE_MAINT_INTERVAL_MINUTES registry key as described above. By default, Space Check checks all drives once per day, or when services are started on the client computers.
When the Space Check Interval is changed, the change will take effect when the services are restarted or at the next monitoring interval.
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