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Filestore properties

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Applies to: SQL Server Analysis Services Azure Analysis Services Fabric/Power BI Premium

Analysis Services includes the following filestore properties. These are all advanced properties that you should not change, except under the guidance of Microsoft support.

Note

MaxOfflineDatasetSizeGB is the only OLAP property that exclusively applies to Power BI.

Properties

MaxOfflineDatasetSizeGB

Applies to Power BI only. Maximum size of the offline dataset in memory. This is the compressed size on disk. The default value is 0, which is the highest limit defined by SKU. The allowable range is between 0 and the capacity size limit.

MemoryLimit

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

MemoryLimitMin

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

PercentScanPerPrice

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

PerformanceTrace

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

RandomFileAccessMode

Does not apply to Power BI. A Boolean property that indicates whether database files and cached files are accessed in random file access mode. This property is off by default. By default, the server does not set the random file access flag when opening partition data files for read access.

On high-end systems, particularly those with large memory resources and multiple NUMA nodes, it can be advantageous to use random file access. In random access mode, Windows bypasses page-mapping operations that read data from disk into the system file cache, thereby lowering contention on the cache.

You will need to run comparison tests to determine whether query performance is improved as the result of changing this property. For best practices on running comparison tests, including clearing the cache and avoiding common mistakes, see the SQL Server 2008 R2 Analysis Services Operations Guide. For additional information on the tradeoffs of using this property, see https://support.microsoft.com/kb/2549369.

To view or modify this property in SQL Server Management Studio, enable the advanced properties list in the server properties page. You can also change the property in the msmdsrv.ini file. Restarting the server is recommended after setting this property; otherwise files that are already open will continue to be accessed in the previous mode.

UnbufferedThreshold

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

Memory Model category

MemoryModel\Tax

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

MemoryModel\Income

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

MemoryModel\MaximumBalance

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

MemoryModel\MinimumBalance

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

MemoryModel\InitialBonus

Does not apply to Power BI. An advanced property that you should not change, except under the guidance of Microsoft support.

See also

Server properties in Analysis Services
Determine the Server Mode of an Analysis Services Instance