NAS monitoring metrics and alert rules - File Storage NAS

Background information

CloudMonitor is a monitoring service for Alibaba Cloud resources and applications on the Internet. You can use CloudMonitor to monitor the metrics of your cloud service resources and to configure alerts for specific metrics. This gives you full visibility into resource usage and workload status on Alibaba Cloud, so you can handle faulty resources in time and keep your workloads running. For more information about CloudMonitor, see What is CloudMonitor.

Capacity metrics

Capacity monitoring data is a real-time value and is not used as the metering value for billing. For more detailed metering data, see View billing and usage details.

Performance metrics

Read IOPS, write IOPS, and metadata QPS are integer values. If the file system receives fewer than 60 related requests within one minute, the monitoring value is displayed as 0.
If charts show No data, the file system has not received client requests, or the corresponding services are not activated.

Monitoring data retention policy

Monitoring data is retained for 90 days from the time it is generated and then automatically cleared.

Metrics

CloudMonitor tracks NAS file system performance and capacity in real time.

Capacity monitoring

Type of file system	MetricName	Metric	Unit	Description
General-purpose NAS file system	AlignedSize	Data volume of a General-purpose NAS file system (excluding the IA storage class)	bytes	Data volume used by the file system in the selected time range, excluding IA storage class data.
	SecondaryAlignedSize	Data volume of the IA storage class	bytes	Data volume that the file system stores in the IA storage class in the selected time range after lifecycle management is enabled.
	FileCount	Number of files	count	Number of files in the file system in the selected time range, excluding directories.
	OfflineReadQuantity	Read traffic of the IA storage class	bytes	Read traffic generated by accessing IA storage class data after lifecycle management is enabled.
	OfflineWriteQuantity	Write traffic of the IA storage class	bytes	Write traffic generated by accessing IA storage class data after lifecycle management is enabled.
	ArReadQuantity	Read traffic of the Archive storage class	bytes	Read traffic generated by accessing Archive storage class data after lifecycle management is enabled.
	ArWriteQuantity	Write traffic of the Archive storage class	bytes	Write traffic generated by accessing Archive storage class data after lifecycle management is enabled.
	ArDeletePenaltyOpCount	Number of delete operations on archived files that trigger penalty	count	After lifecycle management is enabled, the number of times that deleting Archive storage class data stored for less than 60 days triggers billing for storage capacity held in the Archive storage class for less than 60 days. Each operation is counted by the number of files involved.
	ArTruncatePenaltyOpCount	Number of truncate operations on archived files that trigger penalty	count	After lifecycle management is enabled, the number of truncate operations that trigger billing for storage capacity held in the Archive storage class for less than 60 days, when the truncated data has been stored for less than 60 days. Each operation is counted by the number of files involved.
	ArRetrievePenaltyOpCount	Number of retrieve operations on archived files that trigger penalty	count	After lifecycle management is enabled, the number of times that retrieving Archive storage class data stored for less than 60 days triggers billing for storage capacity held in the Archive storage class for less than 60 days. Each operation is counted by the number of files involved.
Extreme NAS file system	ExtremeCapacity	Total storage space of an Extreme NAS file system	bytes	Total storage capacity of the file system in the selected time range.
	ExtremeCapacityUsed	Used data volume of an Extreme NAS file system	bytes	Data volume used by the file system in the selected time range.
	ExtremeInodeLimit	Maximum number of files in an Extreme NAS file system	count	Maximum number of files that you can create in the file system in the selected time range.
	ExtremeInodeUsed	Number of used files in an Extreme NAS file system	count	Number of files created in the file system in the selected time range.
AgenticFS	AgenticFSCapacityUsed	Capacity of the AgenticFS file system	bytes	Storage capacity used by the AgenticFS file system in the selected time range.
	AgenticFSInodeUsed	Number of files in the AgenticFS file system	count	Number of files in the AgenticFS file system in the selected time range.
	AgenticSpaceCapacityLimit	Upper limit of the AgenticSpace capacity quota	bytes	Upper limit of the storage capacity quota for the AgenticSpace in the selected time range.
	AgenticSpaceCapacityUsed	AgenticSpace used capacity	bytes	Storage capacity used by the AgenticSpace in the selected time range.
	AgenticSpaceInodeLimit	Upper limit of the AgenticSpace file count quota	count	Upper limit of the file count quota for the AgenticSpace in the selected time range.
	AgenticSpaceInodeUsed	AgenticSpace used file count	count	Number of files used by the AgenticSpace in the selected time range.

Performance monitoring

Type of file system	MetricName	Metric	Unit	Description
NAS	IopsRead	Read IOPS	requests/s	Average number of read operations per second for the file system in the selected time range.
	IopsWrite	Write IOPS	requests/s	Average number of write operations per second for the file system in the selected time range.
	ThruputRead	Read throughput	bytes/s	Average number of bytes read per second by the file system in the selected time range.
	ThruputWrite	Write throughput	bytes/s	Average number of bytes written per second by the file system in the selected time range.
	LatencyRead	Read latency	ms	Average read latency of the file system in the selected time range.
	LatencyWrite	Write latency	ms	Average write latency of the file system in the selected time range.
	QpsMeta	Metadata QPS	requests/s	Average number of metadata requests per second for the file system in the selected time range.
AgenticFS	AgenticFSReadIops	Read IOPS	requests/s	Average number of read operations per second for the AgenticFS file system in the selected time range.
	AgenticFSWriteIops	Write IOPS	requests/s	Average number of write operations per second for the AgenticFS file system in the selected time range.
	AgenticFSReadThroughput	Read throughput	bytes/s	Average number of bytes read per second by the AgenticFS file system in the selected time range.
	AgenticFSWriteThroughput	Write throughput	bytes/s	Average number of bytes written per second by the AgenticFS file system in the selected time range.
	AgenticFSReadLatency	Read latency	us	Average read latency of the AgenticFS file system in the selected time range.
	AgenticFSWriteLatency	Write latency	us	Average write latency of the AgenticFS file system in the selected time range.
	AgenticFSMetaQps	Metadata QPS	requests/s	Average number of metadata requests per second for the AgenticFS file system in the selected time range.
	AgenticFSMetaLatency	Metadata latency	us	Average metadata operation latency of the AgenticFS file system in the selected time range.
	AgenticSpaceReadIops	Read IOPS	requests/s	Average number of read operations per second for the AgenticSpace in the selected time range.
	AgenticSpaceWriteIops	Write IOPS	requests/s	Average number of write operations per second for the AgenticSpace in the selected time range.
	AgenticSpaceReadThroughput	Read throughput	bytes/s	Average number of bytes read per second by the AgenticSpace in the selected time range.
	AgenticSpaceWriteThroughput	Write throughput	bytes/s	Average number of bytes written per second by the AgenticSpace in the selected time range.
	AgenticSpaceReadLatency	Read latency	us	Average read latency of the AgenticSpace in the selected time range.
	AgenticSpaceWriteLatency	Write latency	us	Average write latency of the AgenticSpace in the selected time range.
	AgenticSpaceMetaQps	Metadata QPS	requests/s	Average number of metadata requests per second for the AgenticSpace in the selected time range.
	AgenticSpaceMetaLatency	Metadata latency	us	Average metadata operation latency of the AgenticSpace in the selected time range.

Alert rules

In the CloudMonitor console, you can configure alert rules for different monitoring metrics. When a metric of a resource meets the alert condition, CloudMonitor automatically sends an alert notification. The following table describes the alert severities, notification methods, and alert conditions of alert rules.

Alert severity	Notification method	Alert condition
Critical	Phone call, text message, email, and DingTalk chatbot	The average metric value over N consecutive cycles, where each cycle lasts one minute, must meet the configured condition when compared with the specified threshold. Set N based on the alert severity. Note Alert conditions vary with the metric type that you select. Refer to the actual console page for details.
Warning	Text message, email, and DingTalk chatbot
Info	Email and DingTalk chatbot