File system metrics

Your Amazon FSx for NetApp ONTAP file system metrics are classified as either File system metrics or Detailed file system metrics.

• File system metrics are aggregate performance and storage metrics for a single file system that take a single dimension, FileSystemId. These metrics measure network performance and storage capacity usage for your file system.

• Detailed file system metrics measure your file system's storage capacity and used storage in each storage tier (for example, SSD storage and capacity pool storage). Each metric includes a FileSystemId, StorageTier, and DataType dimension.

File system metrics

File system metrics are aggregate performance and storage metrics for a single file system. These metrics measure network performance and the amount of data (physical and logical) stored on your file system.

All of these metrics take one dimension, FileSystemId.

Metric	Description
DataReadBytes	The number of bytes (network I/O) from reads by clients to the file system. The Sum statistic is the total number of bytes associated with read operations during the period. To calculate the average throughput (bytes per second) for a period, divide the Sum statistic by the number of seconds in the period. Units: Bytes Valid statistics: Sum
DataWriteBytes	The number of bytes (network I/O) from writes by clients to the file system. The Sum statistic is the total number of bytes associated with write operations during the period. To calculate the average throughput (bytes per second) for a period, divide the Sum statistic by the number of seconds in the period. Units: Bytes Valid statistics: Sum
DataReadOperations	The count of read operations (network I/O) from reads by clients to the file system. The Sum statistic is the total number of I/O operations that occurred over the specified period. To calculate the average read operations per second for a period, divide the Sum statistic by the number of seconds in the period. Units: Count Valid statistics: Sum
DataWriteOperations	The count of write operations (network I/O) from writes by clients to the file system. The Sum statistic is the total number of I/O operations that occurred over the specified period. To calculate the average write operations per second for a period, divide the Sum statistic by the number of seconds in the period. Units: Count Valid statistics: Sum
MetadataOperations	The count of metadata operations (network I/O) by clients to the file system. The Sum statistic is the total number of I/O operations that occurred over the specified period. To calculate the average metadata operations per second for a period, divide the Sum statistic by the number of seconds in the period. Units: Count Valid statistics: Sum
StorageUsed	The total amount of physical data stored on the file system, on both the primary (SSD) tier and the capacity pool tier. This metric includes savings from storage-efficiency features, such as data compression and deduplication. Units: Bytes Valid statistics: Average, Minimum, Maximum
LogicalDataStored	The total amount of logical data stored on the file system, considering both the SSD tier and the capacity pool tier. This metric includes the total logical size of snapshots and FlexClones, but does not include storage efficiency savings achieved through compression, compaction, and deduplication. To compute storage-efficiency savings in bytes, take the Average of StorageUsed over a given period and subtract it from the Average of LogicalDataStored over the same period. To compute storage-efficiency savings as a percentage of total logical data size, take the Average of StorageUsed over a given period and subtract it from the Average of LogicalDataStored over the same period. Then divide the difference by the Average of LogicalDataStored over the same period. Units: Bytes Valid statistics: Average, Minimum, Maximum

Detailed file system metrics

Detailed file system metrics are detailed storage-utilization metrics for each of your storage tiers. Detailed file system metrics all have the dimensions FilesystemId, StorageTier, and DataType.

• The StorageTier dimension indicates the storage tier that the metric measures, with possible values of SSD and StandardCapacityPool.

• The DataType dimension indicates the type of data that the metric measures, with the possible value All.

There is a row for each unique combination of a given metric and dimensional key-value pairs, with a description of what that combination measures.

Metric	Description
StorageCapacity	The total storage capacity of the primary (SSD) tier. Units: Bytes Valid statistics: Maximum
StorageUsed	The used physical storage capacity in bytes, specific to the storage tier. This value includes savings from storage-efficiency features, such as data compression and deduplication. Valid dimension values for StorageTier are SSD and StandardCapacityPool, corresponding to the storage tier that this metric measures. This metric also requires the DataType dimension with the value All. The Average, Minimum, and Maximum statistics are per-tier storage consumption in bytes for the given period. To calculate storage-capacity utilization of your primary (SSD) storage tier, divide any of these statistics by the Maximum StorageCapacity over the same period, with the StorageTier dimension equal to SSD. To calculate the free storage capacity of your primary (SSD) storage tier in bytes, subtract any of these statistics from the Maximum StorageCapacity over the same period, with the dimension StorageTier equal to SSD. Units: Bytes Valid statistics: Average, Minimum, Maximum