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Cache utilization metrics - Amazon File Cache
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Cache utilization metrics

The following metrics report cache-level storage information. These metrics take one dimension (FileCacheId) and are published into the AWS/FSx namespace in CloudWatch.

Metric Description

FreeDataStorageCapacity

The amount of available data storage capacity.

The Sum statistic is the total number of bytes available in the cache The Minimum statistic is the total number bytes available in the fullest disk. The Maximum statistic is the total number of bytes available in the disk with the most remaining available storage. The Average statistic is the average number of bytes available per disk. The SampleCount statistic is the number of disks.

Units:

  • Bytes for Sum, Minimum, Maximum.

  • Count for SampleCount.

Valid statistics: Sum, Minimum, Maximum, Average, SampleCount.

FreeMetadataStorageCapacity

The amount of available metadata storage capacity.

The Sum statistic is the total number of bytes of metadata storage available in the cache. The Minimum statistic is the total number of bytes available in the fullest metadata target (MDT) disk. The Maximum statistic is the total number of bytes available in the MDT disk with the most remaining storage. The Average statistic is the average number of bytes available per MDT disk. The SampleCount statistic is the number of MDT disks.

Units:

  • Bytes for Sum, Minimum, Maximum, Average.

  • Count for SampleCount.

Valid statistics: Sum, Minimum, Maximum, Average, SampleCount.

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