• Management Pack:  SQL Server Analysis Services
  • MP Version:  6.7.31.0 for SQL Server 2016 Analysis Services
  • Released:  6/27/2017
  • Publisher:  Microsoft

Partition Storage Free Space Monitor

  • ID:  Microsoft.SQLServer.2016.AnalysisServices.UnitMonitor.Partition.FreeSpace
  • Description:  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.
  • Target:  SSAS 2016 Multidimensional Partition
  • Enabled:  Yes

Operational States

Name State Description
Sufficient free disk space Success  
Disk space exhaustion possible soon Warning  
Disk space exhaustion imminent Error  

Overridable Parameters

Parameter Name Default Value Description Override
Warning Threshold (%) 10 Health State changes to Warning, when Partition Free Space (%) performance counter drops below the threshold, but is still higher than Critical Threshold (%).
Critical Threshold (%) 5 Health State changes to Critical, when Partition Free Space (%) performance counter drops below the threshold.
Interval Seconds 900 The recurring interval of time in seconds in which to run the workflow.
Synchronization Time   The synchronization time specified by using a 24-hour format. May be omitted.
Timeout (seconds) 300 Specifies the time the workflow is allowed to run before being closed and marked as failed.

Alert Details

Monitor State Message Priority Severity Auto Resolution
Disk space exhaustion imminent (Error) SSAS 2016: The partition storage folder lacks sufficient disk space. Medium Critical Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

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.

External References

Configure Server Properties in Analysis Services

TechNet documentation for SSAS Performance Counters

SSAS Multidimensional Performance Guide

See Also for SQL Server Analysis Services Management Pack


Downloads for SQL Server Analysis Services Management Pack

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