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/backup_used
Bytes backed up
(baseline and
incremental changes).
/volume
byte
/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/auto_tiering/tiered_bytes
Auto-tiering volume used
capacity by tiered types:
cold or hot.
/volume
  • cold
  • hot
byte
/volume/auto_tiering/cold_tier_read_byte_count
Capacity read from the cold
tier of the volume.
/volume
byte
/volume/auto_tiering/cold_tier_write_byte_count
Capacity write to cold
tier of the volume.
/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/backup_current_transfer_bytes
Amount of data transferred
thus far for the current job.
/volume
byte
/volume/backup_healthy
FALSE if a backup transfer
is missed or failed or has
experienced a manual backup failure.
/volume
BOOL
/volume/backup_last_transfer_duration
Duration of the last transfer
job.
/volume
sec
/volume/backup_last_transfer_size
Size of the last transfer
job.
/volume
byte
/volume/backup_transferring
Status of backup:
TRUE = transferring,
FALSE = idle.
/volume
BOOL
/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/auto_tiering/tiered_bytes
Storage pool capacity tiering
types: cold, non cold.
/storagePool
  • cold
  • non-cold
byte
/storage_pool/auto_tiering/cold_tier_read_byte_count
Bytes read from the cold
tier of the pool.
/storagePool
byte
/storage_pool/auto_tiering/cold_tier_write_byte_count
Bytes written to the cold
tier of the pool.
/storagePool
byte
/storage_pool/capacity
Total size of the pool.
/storagePool
byte
/storage_pool/replication_status
Status of replication for
regional flex pools. 0 means
out-of-sync , 1 means synced
and 2 means catching-up.
/storagePool
1
/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 lets you 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 .

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