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Azure Managed Lustre monitoring data reference

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This article contains all the monitoring reference information for this service.

See Monitor Azure Managed Lustre for details on the data you can collect for Azure Managed Lustre and how to use it.

Metrics

This section lists all the automatically collected platform metrics for this service. These metrics are also part of the global list of all platform metrics supported in Azure Monitor.

For information on metric retention, see Azure Monitor Metrics overview.

Supported metrics for Microsoft.StorageCache/amlFilesystems

The following table lists the metrics available for the Microsoft.StorageCache/amlFilesystems resource type.

  • All columns might not be present in every table.
  • Some columns might be beyond the viewing area of the page. Select Expand table to view all available columns.

Table headings

  • Category - The metrics group or classification.
  • Metric - The metric display name as it appears in the Azure portal.
  • Name in REST API - The metric name as referred to in the REST API.
  • Unit - Unit of measure.
  • Aggregation - The default aggregation type. Valid values: Average (Avg), Minimum (Min), Maximum (Max), Total (Sum), Count.
  • Dimensions - Dimensions available for the metric.
  • Time Grains - Intervals at which the metric is sampled. For example, PT1M indicates that the metric is sampled every minute, PT30M every 30 minutes, PT1H every hour, and so on.
  • DS Export- Whether the metric is exportable to Azure Monitor Logs via diagnostic settings. For information on exporting metrics, see Create diagnostic settings in Azure Monitor.
Metric Name in REST API Unit Aggregation Dimensions Time Grains DS Export
Client Read Ops

Number of client read ops performed.		 ClientReadOps Count Minimum, Maximum, Average ostnum PT1M No
Client Read Throughput

Client read data transfer rate.		 ClientReadThroughput BytesPerSecond Minimum, Maximum, Average ostnum PT1M No
Client Write Ops

Number of client write ops performed.		 ClientWriteOps Count Minimum, Maximum, Average ostnum PT1M No
Client Write Throughput

Client write data transfer rate.		 ClientWriteThroughput BytesPerSecond Minimum, Maximum, Average ostnum PT1M No
MDT Bytes Available

Number of bytes marked as available on the MDT.		 MDTBytesAvailable Bytes Minimum, Maximum, Average mdtnum PT1M No
MDT Bytes Total

Total number of bytes supported on the MDT.		 MDTBytesTotal Bytes Minimum, Maximum, Average mdtnum PT1M No
MDT Bytes Used

Number of bytes available for use minus the number of bytes marked as free on the MDT.		 MDTBytesUsed Bytes Minimum, Maximum, Average mdtnum PT1M No
MDT Client Latency

Client latency for all operations to MDTs.		 MDTClientLatency MilliSeconds Minimum, Maximum, Average mdtnum, operation PT1M No
Client MDT Ops

Number of client MDT metadata ops performed.		 MDTClientOps Count Minimum, Maximum, Average mdtnum, operation PT1M No
MDT Connected Clients

Number of client connections (exports) to the MDT		 MDTConnectedClients Count Minimum, Maximum, Average mdtnum PT1M No
MDT Files Free

Count of free files (inodes) on the MDT.		 MDTFilesFree Count Minimum, Maximum, Average mdtnum PT1M No
MDT Files Total

Total number of files supported on the MDT.		 MDTFilesTotal Count Minimum, Maximum, Average mdtnum PT1M No
MDT Files Used

Number of total supported files minus the number of free files on the MDT.		 MDTFilesUsed Count Minimum, Maximum, Average mdtnum PT1M No
OST Bytes Available

Number of bytes marked as available on the OST.		 OSTBytesAvailable Bytes Minimum, Maximum, Average ostnum PT1M No
OST Bytes Total

Total number of bytes supported on the OST.		 OSTBytesTotal Bytes Minimum, Maximum, Average ostnum PT1M No
OST Bytes Used

Number of bytes available for use minus the number of bytes marked as free on the OST.		 OSTBytesUsed Bytes Minimum, Maximum, Average ostnum PT1M No
OST Client Latency

Client latency for all operations to OSTs.		 OSTClientLatency MilliSeconds Minimum, Maximum, Average ostnum, operation PT1M No
Client OST Ops

Number of client OST metadata ops performed.		 OSTClientOps Count Minimum, Maximum, Average ostnum, operation PT1M No
OST Connected Clients

Number of client connections (exports) to the OST		 OSTConnectedClients Count Minimum, Maximum, Average ostnum PT1M No
OST Files Free

Count of free files (inodes) on the OST.		 OSTFilesFree Count Minimum, Maximum, Average ostnum PT1M No
OST Files Total

Total number of files supported on the OST.		 OSTFilesTotal Count Minimum, Maximum, Average ostnum PT1M No
OST Files Used

Number of total supported files minus the number of free files on the OST.		 OSTFilesUsed Count Minimum, Maximum, Average ostnum PT1M No

Note

The metric OSTBytesUsed represents the total capacity consumed on the file system, including all metadata and overhead associated with the files. The value for OSTBytesUsed might be greater than the result of running lfs df on the file system, as df output for Used only attempts to capture the data that the end user has placed on the file system.

Metric dimensions

For information about what metric dimensions are, see Multi-dimensional metrics.

This service has the following dimensions associated with its metrics.

Dimensions specific to Azure Managed Lustre

Dimension name Description
ostnum Object Storage Target (OST) index number
mdtnum Metadata Target (MDT) index number
operation Type of operation performed

Supported resource logs for Microsoft.StorageCache/amlFilesystems

Category Category display name Log table Supports basic log plan Supports ingestion-time transformation Example queries Costs to export
AmlfsAuditEvent Azure Managed Lustre audit event No No Yes

Azure Monitor Logs tables

This section lists the Azure Monitor Logs tables relevant to this service, which are available for query by Log Analytics using Kusto queries.

Activity log

The linked table lists the operations that can be recorded in the activity log for this service. These operations are a subset of all the possible resource provider operations in the activity log.

For more information on the schema of activity log entries, see Activity Log schema.

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