Release policy parameters

Configuring exclusion from release

After you have modified the FSE partition configuration template or an already used FSE configuration file with a configured ExcludeFromRelease variable, you have to apply it by running the fsepartition --addor the fsepartition --modifycommand, respectively. Potential syntax errors in the ExcludeFromRelease parameter specification are immediately reported to the standard command output.

For information on the fsepartition command, see the FSE CLI reference.

Releasing excluded files

The files that have been excluded from release can be unconditionally released using the following command:

fsefile --release FileName...

You must run the command on the FSE client that hosts the chosen FSE partition.

For more information on the fsefile command, see the FSE CLI reference.

The following are the configuration parameters for release along with their definition and impact. The combination of these parameters allows a flexible configuration of release behavior.

Critical watermark (CriticalWaterMark)

Definition	The percentage of used disk space that triggers a forced release job.

Impact	This parameter value should not be too low as it will result in frequent forced releases (it
	should typically be above 95%).

High watermark (HighWaterMark)

Definition	The percentage of used disk space that triggers a regular release job.

Impact	Consider the value for acceptable occupation of disk space. If you set a low value, it will
	result in numerous regular releases.

Low watermark (LowWaterMark)

Definition	The percentage of used disk space that stops the regular release job — the files below
	the defined low watermark are not released and remain on the disk.

Impact	Consider the value for disk space needed for the number of small files that should not be
	released if you want to optimize the use of the FSE implementation.

Release interval (ReleaseInterval)

Definition	The frequency of the disk space checks for watermark conditions.

Impact	Define this value according to the frequency of recalls and the size of the recalled files. If
	this value is too high, for example 5 minutes, and you have constant recalls of large files,
	the file system will be overloaded. Such occupation of disk space will make all recalls of
	offline files impossible.

134 Migration, release, recall, and deletion

File System Extender (FSE) specifications

HP File System Extender (FSE) is a sophisticated solution designed to optimize data storage management for enterprises that deal with large volumes of unstructured data. This technology addresses the challenges of data growth and the need for effective data retention strategies, enabling organizations to store and manage their information more efficiently.

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HP File System Extender (FSE) manual Release policy parameters

Models: File System Extender (FSE)

Configuring exclusion from release

Releasing excluded files