NAS monitoring metrics and alert rules - File Storage NAS

Background information

CloudMonitor monitors Alibaba Cloud resources and Internet applications. You can use CloudMonitor to track resource metrics, configure alert rules, and handle exceptions promptly. What is CloudMonitor

Capacity metrics

Capacity monitoring data is generated in real time and may differ from billing records. View billing and usage details.

Performance metrics

IOPS and metadata QPS values are integers. If fewer than 60 requests occur in the last minute, 0 is displayed.
If charts show No data, the file system has not received client requests, or the corresponding services are not activated.

Retention policy of monitoring data

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

File system type	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 stored in the file system, excluding IA storage class data.
	SecondaryAlignedSize	Data volume of the IA storage class	bytes	Data volume stored in the IA storage class after lifecycle management is enabled.
	FileCount	Number of files	N/A	Number of files in the file system, 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	N/A	Number of delete operations on files stored in the Archive storage class for less than 60 days. With lifecycle management enabled, early deletion incurs charges for the remaining storage duration.
	ArTruncatePenaltyOpCount	Number of truncate operations on archived files that trigger penalty	N/A	Number of truncate operations on files stored in the Archive storage class for less than 60 days. With lifecycle management enabled, early truncation incurs charges for the remaining storage duration.
	ArRetrievePenaltyOpCount	Number of retrieve operations on archived files that trigger penalty	N/A	Number of retrieve operations on files stored in the Archive storage class for less than 60 days. With lifecycle management enabled, early retrieval incurs charges for the remaining storage duration.
Extreme NAS file system	ExtremeCapacity	Total storage space of an Extreme NAS file system	bytes	Total capacity of the Extreme NAS file system.
	ExtremeCapacityUsed	Data volume of an Extreme NAS file system	bytes	Data volume stored in the Extreme NAS file system.
	ExtremeInodeLimit	Maximum number of files in an Extreme NAS file system	N/A	Maximum number of files allowed in the Extreme NAS file system.
	ExtremeInodeUsed	Number of used files in an Extreme NAS file system	N/A	Number of files created in the Extreme NAS file system.

Performance monitoring

MetricName	Metric	Unit	Description
IopsRead	Read IOPS	requests/s	Average read IOPS of the file system.
IopsWrite	Write IOPS	requests/s	Average write IOPS of the file system.
ThruputRead	Read throughput	bytes/s	Average read throughput of the file system.
ThruputWrite	Write throughput	bytes/s	Average write throughput of the file system.
LatencyRead	Read latency	ms	Average read latency of the file system.
LatencyWrite	Write latency	ms	Average write latency of the file system.
QpsMeta	Metadata QPS	requests/s	Average metadata requests per second for the file system.

Alert rules

Configure alert rules in the CloudMonitor console. When a metric value meets the alert condition, CloudMonitor sends notifications to the specified recipients. The following table describes the available alert severities, notification methods, and alert conditions.

Alert severity	Notification method	Alert condition
Critical	Phone call, text message, email, and DingTalk chatbot	The average metric value reaches the specified threshold for N consecutive 1-minute cycles. You can configure N based on the alert severity. Note The actual alert condition varies by metric type.
Warning	Text message, email, and DingTalk chatbot
Info	Email and DingTalk chatbot