You can use CloudLens for EBS in the Elastic Block Storage (EBS) console to view the monitoring data of disks and check business fluctuations and resource consumption in real time. This topic describes how to view the performance data of disks, disk events, and performance burst details of Enterprise SSD (ESSD) AutoPL disks.
Enable CloudLens for EBS
The first time you use CloudLens for EBS in the EBS console, follow the on-screen instructions to enable CloudLens for EBS.
The first time you enable CloudLens for EBS, the system requires one day to prepare data. After the preparation is complete, CloudLens for EBS starts to monitor disk performance and collect statistics. The historical data of disks that was generated before CloudLens for EBS is enabled is not collected.
View the near real-time monitoring data of a disk
Log on to the Elastic Block Storage (EBS) console.
NoteThe first time you log on to the EBS console, you must create a service-linked role for EBS as prompted. For more information, see Service-linked role for EBS.
In the left-side navigation pane, choose .
In the upper-left corner of the top navigation bar, select a region.
On the Disk Analysis page, find the disk whose performance data you want to view and click Performance in the Actions column.
On the Near Real-time Monitoring tab, specify a time range to view the monitoring data of the disk.
The following table describes the performance metrics of disks.
Metric
Description
Throughput
The amount of data that is transferred by a disk per unit time. Unit: Mbit/s. High throughput is essential for applications that require a large number of sequential reads and writes.
If the disk is an ESSD AutoPL disk, the near real-time monitoring data of the baseline throughput and the provisioned throughput is displayed. For more information about ESSD AutoPL disks, see ESSD AutoPL disks.
Read/Write Throughput
The amount of data that is read or written by a disk per unit time. Unit: Mbit/s.
IOPS
The number of input/output operations that can be performed per second on a disk. High IOPS is essential for transaction-intensive applications.
If the disk is an ESSD AutoPL disk, the near real-time monitoring data of the baseline IOPS and the provisioned IOPS is displayed. For more information about ESSD AutoPL disks, see ESSD AutoPL disks.
Read/Write IOPS
The number of read/write operations that are processed by a disk per second.
I/O Read/Write by Latency
The amount of time that is required by a disk to process an I/O request. Unit: microseconds. High latency may cause application performance to degrade or errors to occur. Low latency is essential for latency-sensitive applications.
I/O Read/Write by Size
The size of an I/O (read/write) request on a disk. Unit: bytes. The throughput and efficiency of storage systems vary based on the I/O size. Specific systems may optimize the transmission of large chunks of data. Other systems may perform better with small chunks of data. You can understand and optimize I/O sizes based on the requirements of applications to improve system performance.
NoteThe preceding metrics provide statistics on monitoring data at a minimum granularity of 5 seconds.
Near real-time monitoring data may have a delay of 1 minute to 5 minutes. During query, the monitoring data in the previous 1 minute to 5 minutes may be zero, which indicates that the monitoring data is not obtained.
View the burst performance data of an ESSD AutoPL disk
After you enable the performance burst feature for an ESSD AutoPL disk, CloudLens for EBS monitors the performance burst details of the disk, such as the burst duration and the number of burst IOPS, in real time. For more information about ESSD AutoPL disks, see ESSD AutoPL disks.
Log on to the Elastic Block Storage (EBS) console.
NoteThe first time you log on to the EBS console, you must create a service-linked role for EBS as prompted. For more information, see Service-linked role for EBS.
In the left-side navigation pane, choose .
In the upper-left corner of the top navigation bar, select a region.
On the Disk Analysis page, find the ESSD AutoPL disk whose monitoring data you want to view and click Performance in the Actions column.
In the left-side navigation pane, click the AutoPL Burst IO tab.
On the AutoPL Burst IO tab, view the performance burst details of the ESSD AutoPL disk, such as the burst duration and the number of burst IOPS.
NoteBurst events and the details of performance bursts have a delay of up to 1 hour.
View the risk events of a disk
Risk events are triggered when CloudLens for EBS detects risks on disks. This way, you can be notified of and handle the risks at the earliest opportunity to ensure the security of disk data and that the disks run as expected.
Log on to the Elastic Block Storage (EBS) console.
NoteThe first time you log on to the EBS console, you must create a service-linked role for EBS as prompted. For more information, see Service-linked role for EBS.
In the left-side navigation pane, choose .
In the upper-left corner of the top navigation bar, select a region.
On the Disk Analysis page, find the disk whose monitoring data you want to view and click Event in the Actions column.
On the Disk Event tab, view the risk events of the disk and handle the events based on the suggestions.
For more information, see View and handle disk events and Disk events.