Answer

Microsoft Platform Guide
Audience
Public
Source Type
Documentation

The definitions are explained in the Python py-pure-client documentation located here - py-pure-client ReadTheDocs . Specifically, refer to the section on "Models".

As an example, when querying the performance metrics for the FlashArray "array" class by:

  • API call example - GET http://flasharray/api/2.2/arrays/performance
  • PowerShell SDK2 cmdlet example - Get-Pfa2ArrayPerformance

    The response definitions are shown as follows under this section of the documentation:

  • bytes_per_mirrored_write (int) – The average I/O size per mirrored write. Measured in bytes.
  • bytes_per_op (int) – The average I/O size for both read and write (all) operations.
  • bytes_per_read (int) – The average I/O size per read. Measured in bytes.
  • bytes_per_write (int) – The average I/O size per write. Measured in bytes.
  • mirrored_write_bytes_per_sec (int) – The number of mirrored bytes written per second.
  • mirrored_writes_per_sec (int) – The number of mirrored writes per second.
  • qos_rate_limit_usec_per_mirrored_write_op (int) – The average time it takes the array to process a mirrored I/O write request. Measured in microseconds.
  • qos_rate_limit_usec_per_read_op (int) – The average time spent waiting due to QoS rate limiting for a read request. Measured in microseconds.
  • qos_rate_limit_usec_per_write_op (int) – The average time that a write I/O request spends waiting as a result of the volume reaching its QoS bandwidth limit. Measured in microseconds.
  • queue_usec_per_mirrored_write_op (int) – The average time that a mirrored write I/O request spends in the array waiting to be served. Measured in microseconds.
  • queue_usec_per_read_op (int) – The average time that a read I/O request spends in the array waiting to be served. Measured in microseconds.
  • queue_usec_per_write_op (int) – The average time that a write I/O request spends in the array waiting to be served. Measured in microseconds.
  • read_bytes_per_sec (int) – The number of bytes read per second.
  • reads_per_sec (int) – The number of read requests processed per second.
  • san_usec_per_mirrored_write_op (int) – The average time required to transfer data from the initiator to the array for a mirrored write request. Measured in microseconds.
  • san_usec_per_read_op (int) – The average time required to transfer data from the array to the initiator for a read request. Measured in microseconds.
  • san_usec_per_write_op (int) – The average time required to transfer data from the initiator to the array for a write request. Measured in microseconds.
  • service_usec_per_mirrored_write_op (int) – The average time required for the array to service a mirrored write request. Measured in microseconds.
  • service_usec_per_read_op (int) – The average time required for the array to service a read request. Measured in microseconds.
  • service_usec_per_write_op (int) – The average time required for the array to service a write request. Measured in microseconds.
  • time (int) – The time when the sample performance data was taken. Measured in milliseconds since the UNIX epoch.
  • usec_per_mirrored_write_op (int) – The average time it takes the array to process a mirrored I/O write request. Measured in microseconds. The average time does not include SAN time, queue time, or QoS rate limit time.
  • usec_per_read_op (int) – The average time it takes the array to process an I/O read request. Measured in microseconds. The average time does not include SAN time, queue time, or QoS rate limit time.
  • usec_per_write_op (int) – The average time it takes the array to process an I/O write request. Measured in microseconds. The average time does not include SAN time, queue time, or QoS rate limit time.
  • write_bytes_per_sec (int) – The number of bytes written per second.
  • writes_per_sec (int) – The number of write requests processed per second.
  • service_usec_per_read_op_cache_reduction (float) – The percentage reduction in service_usec_per_read_op due to data cache hits. For example, a value of 0.25 indicates that the value of service_usec_per_read_op is 25% lower than it would have been without any data cache hits.
  • id (str) – A globally unique, system-generated ID. The ID cannot be modified and cannot refer to another resource.
  • name (str) – A locally unique, system-generated name. The name cannot be modified.
  • queue_depth (int) – Deprecated. The number displayed here may not be accurate and in later versions of the product this field will always display null. Instead, use queue_usec_per_mirrored_write_op, queue_usec_per_read_op, and queue_usec_per_write_op fields to measure IO queuing.
  • local_queue_usec_per_op (int) – Average local queue time for both read and write operations, measured in microseconds.
  • usec_per_other_op (int) – The average time it takes the array to process an I/O other request, measured in microseconds. The average time does not include SAN time, queue time, or QoS rate limit time.
  • others_per_sec (int) – The number of other requests processed per second.