Monitor NetApp Volumes

This page provides information about monitoring Google Cloud NetApp Volumes.

Cloud Monitoring metrics

Various metrics for monitoring Netapp Volumes are available within Cloud Monitoring. Categories include volume, storage pool, and replication metrics.

You can select and chart individual metrics in Metrics Explorer, create a dashboard with multiple charts, add alerting, or retrieve the metrics data with the Cloud Monitoring API.

Monitored resources

netapp.googleapis.com precedes each monitored resource. For example, for Volume, the complete monitored resource is netapp.googleapis.com/volume.

Monitored resource Resource metadata fields
Volume labels

service_level

storage_pool

protocols
StoragePool labels

service_level
Replication service_level

Resource metrics

netapp.googleapis.com precedes each metric. For example, the complete metric for volume/bytes_used metric is netapp.googleapis.com/volume/bytes_used.

Metrics are sampled and pushed to Cloud Monitoring every five minutes. In Cloud Monitoring Metrics Explorer, select a metric and use a minimum alignment period of five minutes for accurate results.

Metric name Description Monitored resource Metric types Unit
/volume/bytes_used Capacity used to store
data written as files and
additional space used for
snapshots.		 /volume byte
/volume/snapshot_bytes Capacity used
for snapshots.		 /volume byte
/volume/allocated_bytes Capacity allocated to a volume
from the storage pool.		 /volume byte
/volume/operation_count Number of operations being
performed on the volume by
the clients.		 /volume
  • read
  • write
  • metadata
 1
/volume/throughput Throughput for the
operation type.		 /volume
  • read
  • write
  • metadata
 byte
/volume/average_latency Volume I/O operation latency
within the storage system		 /volume
  • read
  • write
  • metadata
 ms
/volume/inode_limit Inodes allocated for
the volume (hard cap).

Tied to allocated capacity
(size) of the volume		 /volume 1
/volume/inode_used Number of inodes in
use on the volume.		 /volume 1
/volume/throughput_limit Maximum throughput
allocated for the volume.		 /volume KiB/s
/storage_pool/allocated Pool capacity allocated
to volumes.		 /storagePool byte
/storage_pool/capacity Total size of the pool. /storagePool byte
/replication/healthy Values of TRUE if
the relationship hasn't missed
the last scheduled transfer
and FALSE if a
scheduled transfer is missed
or is unhealthy.		 /replication BOOL
/replication/lag_time Time since snapshot for
transfer was taken on
source, including transfer duration.		 /replication sec
/replication/last_
transfer_duration		 Duration of the last
transfer job.		 /replication sec
/replication/last
_transfer_size		 Size of the last transfer job. /replication byte
/replication/current
/transfer_bytes		 Amount of data transferred
thus far for the current job.		 /replication byte
/replication/transferring Status of replication:
  • TRUE = Transferring
  • FALSE = Idle
 /replication BOOL
/replication/total_
transfer_byte_count		 Cumulative data transferred
for the relationship since
it was created. May reset to 0		 /replication byte

Cloud Monitoring also allows you to set up alerting if metrics meet certain conditions. For example, you can use Cloud Monitoring to trigger administrative notifications before space in a volume runs out. See Cloud Monitoring alerting.

Track volume performance statistics with Cloud Monitoring

Cloud Monitoring tracks the following performance metrics per volume:

  • /volume/operation_count
  • /volume/throughput
  • /volume/average_latency

These metrics update every 5 minutes and provide an overview of performance trends for periods of one day or longer.

The metrics only reflect the service performance. Consider using monitoring tools available on the clients for more details. For example, the latency observed on the client may be higher than that reported by the service if the requests are queued up on the client before they are sent to the service.

What's next

Monitor volume usage.