The monitor reports a warning, when the available free space for the partition storage location drops below Critical Threshold setting expressed as percentage of the sum of the total size of the folder plus disk free space. The monitor reports a critical alert, when the available space drops below Warning Threshold. The monitor does not monitor available space for the default storage location for SSAS instance.
Knowledge Base article:
Summary
The monitor reports a warning, when the available free space for the partition storage location drops below Critical Threshold setting, expressed as percentage of the sum of the total size of the folder plus free space. The monitor reports a critical alert, when the available space drops below Warning Threshold. The monitor does not monitor available space for the default storage location for SSAS instance.
Causes
When the available disk space as a percentage of the sum of the partition storage location folder size plus disk free space becomes low, the cube can become unhealthy, negatively affecting the performance, or even causing the server to fail. A common cause for this behavior may be fast growing database(s), but could also occur due to other data sharing available disk space with the partition.
Resolutions
The resolution(s) for disk space exhaustion depend upon the root causes, which must be investigated in each case when this issue occurs. The condition may be alleviated by any of the following potential approaches:
Break the partition into multiple smaller partitions, moving some data to another drive.
Remove data consuming disk space on the same drive with the partition storage folder.
Increase the size of the logical drive on which the data folder is stored with Disk Manager.
Move the partition folder to a drive with more available space.
Modify the thresholds accordingly to suit the expected workload and conditions in the environment.
Disable the monitor entirely if disk space is not a concern for the partition/instance.
Health State changes to Critical, when Partition Free Space (%) performance counter drops below the threshold.
5
Enabled
Enables or disables the workflow
Yes
Generates Alerts
Defines whether the workflow generates an Alert
Yes
Interval Seconds
The recurring interval of time in seconds in which to run the workflow.
900
Synchronization Time
The synchronization time specified by using a 24-hour format. May be omitted.
Timeout (seconds)
Specifies the time the workflow is allowed to run before being closed and marked as failed.
300
Warning Threshold (%)
Health State changes to Warning, when Partition Free Space (%) performance counter drops below the threshold, but is still higher than Critical Threshold (%).
SSAS: The partition storage folder lacks sufficient disk space.
Only {3}\% of free space is available for SSAS partition folder "{1}", which is less than the configured threshold for the monitor.
Partition: {5}
Cube: {6}
Measure group: {7}
Storage location: {1}
Disk size: {0} GB
Database free space: {4} GB ({3}\%)
Partition size: {2} GB
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