Cloud disk analysis

Enable CloudLens for EBS

When you log on to the CloudLens for EBS console for the first time, follow the on-screen instructions to enable CloudLens for EBS.

View near-real-time monitoring data

1. Log on to the Elastic Block Storage (EBS) console.

   Note

   The 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.

2. In the left-side navigation pane, choose EBS Lens > Cloud Disk Analysis.

3. In the upper-left corner of the top navigation bar, select a region.

4. On the Cloud Disk Analysis page, find the target cloud disk and click Monitoring in the Actions column.

5. On the Near Real-time Monitoring page, view the monitoring data for the target cloud disk within the selected time range.

   Note

   Near Real-time Monitoring data is subject to a latency of 1 to 5 minutes. Data from the most recent 1 to 5 minutes may show as zero because the data has not yet been collected.

   Metric descriptions

   Metric	Description
   Throughput	The amount of data the cloud disk successfully transfers within the specified time range, measured in MBps. Track this metric for workloads with heavy sequential read and write operations. For an ESSD AutoPL disk, Near Real-time Monitoring displays the baseline and pre-provisioned throughput metrics for the cloud disk. For more information about ESSD AutoPL disks, see ESSD AutoPL disks.
   IOPS	The number of I/O operations the cloud disk processes per second. This metric indicates the read/write (input/output) capability of block storage, measured in operations/second. Track this metric for transaction-intensive applications. For an ESSD AutoPL disk, Near Real-time Monitoring displays the baseline and pre-provisioned IOPS metrics for the cloud disk. For more information about ESSD AutoPL disks, see ESSD AutoPL disks.
   Average I/O size (read/write)	The amount of data read from or written to the cloud disk per I/O operation, measured in bytes. I/O size affects the throughput and efficiency of the storage system. Some systems are optimized for transferring large blocks of data, while others may perform better with small block operations. Depending on your application, understanding and tuning the I/O size can improve overall system performance.
   BPS watermark	The ratio of the current throughput to the maximum throughput of the cloud disk. When this ratio approaches 100%, it indicates that the cloud disk is transferring data at a rate close to its maximum capacity. A further increase in the load may cause performance bottlenecks and slow application responses. Therefore, monitoring this ratio can help you adjust your cloud disk configuration or optimize your application in a timely manner to avoid potential performance issues.
   IOPS watermark	The ratio of the current IOPS to the maximum IOPS of the cloud disk. When this ratio approaches 100%, it indicates that the cloud disk is near its limit for handling concurrent requests, which may lead to increased latency or failed requests. Monitoring this ratio helps you determine if the cloud disk meets your application's real-time performance needs and allows you to make adjustments to maintain stable operations.

   Metric value descriptions

   Near Real-time Monitoring allows you to query monitoring data from the last 5 minutes, 15 minutes, 1 hour, 6 hours, or 1 day. Each metric is the maximum value recorded within a 5-second interval.

   • Time range: 5 minutes or 15 minutes

     You can query only the maximum value of monitoring data. The minimum granularity displayed in the metric window is 5 seconds.

     

   • Time range: 1 hour, 6 hours, or 1 day

     You can query the maximum, minimum, average, and total values of monitoring data. The minimum granularity displayed in the metric window varies based on the time range. For example, if you query data from the last hour, the minimum granularity is 10 seconds.

     • Maximum: The higher of the two 5-second data points recorded within a 10-second interval.

     • Minimum: The lower of the two 5-second data points recorded within a 10-second interval.

     • Average: The average of the two 5-second data points recorded within a 10-second interval.

     • Total: The sum of the two 5-second data points recorded within a 10-second interval.

     

View performance burst details

For an ESSD AutoPL disk with performance burst enabled, you can use CloudLens for EBS to monitor burst details in near real time, including the burst time and burst count. For more information about ESSD AutoPL disks, see ESSD AutoPL disks.

1. Log on to the Elastic Block Storage (EBS) console.

   Note

   The 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.

2. In the left-side navigation pane, choose EBS Lens > Cloud Disk Analysis.

3. In the upper-left corner of the top navigation bar, select a region.

4. On the Cloud Disk Analysis page, find the ESSD AutoPL disk that you want to check and click Monitoring in the Actions column.

5. In the left-side navigation pane, click the AutoPL Burst IO tab.

6. On the AutoPL Burst IO page, view the burst details of the ESSD AutoPL disk, including the burst time and burst count.

   Note

   Burst event and detail queries have a latency of approximately one hour, so the most recent data available is from approximately one hour ago.

View cloud disk risk events

Risk events identify cloud disks that require attention to ensure stable operation and data security.

1. Log on to the Elastic Block Storage (EBS) console.

   Note

   The 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.

2. In the left-side navigation pane, choose EBS Lens > Cloud Disk Analysis.

3. In the upper-left corner of the top navigation bar, select a region.

4. On the Cloud Disk Analysis page, find the cloud disk for which you want to view risk events and click Event in the Actions column.

5. On the Cloud Disk Events page, view the event notifications for the cloud disk and take actions based on the recommended solutions.

   For more information, see Cloud Disk Events and Description of disk events.