- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
-
User Guide
- Permissions Management
- Logging in to a DB Instance
-
MySQL
- Account Management
- Database Management
- SQL Operations
- Table Management
- View Management
- Stored Procedure Management
- Event Management
- Trigger Management
- Function Management
- Data Import and Export
- Data Generator (Not Promoted)
- Tracking and Rolling Back Data (Not Promoted)
- Task Management
- Table Structure Comparison and Synchronization (Not Promoted)
- Intelligent O&M (New Version)
- Intelligent O&M (Old Version)
- RDS for SQL Server
- PostgreSQL
-
RDS for MariaDB
- Account Management
- Database Management
- SQL Operations
- Table Management
- View Management
- Stored Procedure Management
- Event Management
- Trigger Management
- Function Management
- Data Import and Export
- Data Generator (Not Promoted)
- Task Management
- Table Structure Comparison and Synchronization (Not Promoted)
- Intelligent O&M
- GaussDB
-
TaurusDB
- Account Management
- Database Management
- SQL Operations
- Table Management
- View Management
- Event Management
- Stored Procedure Management
- Function Management
- Trigger Management
- Data Import and Export
- Data Generator (Not Promoted)
- Task Management
- Table Structure Comparison and Synchronization (Not Promoted)
- Intelligent O&M
- GeminiDB Cassandra
- GaussDB(DWS) (Unavailable Soon)
- DDS
- DDM
- Audit
- Event Monitoring
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
-
APIs (in OBT)
- API Version Queries
-
Cloud DBA
- Registering a Database User
- Modifying a Database User
- Deleting a Database User
- Querying Intelligent O&M Quotas
- Querying Database User Information
- Querying Database Users
- Killing Sessions
- Querying the SQL Execution Plan (GET Request)
- Querying the SQL Execution Plan (POST Request)
- Querying Metadata Locks
- Querying Instance Sessions
- Querying InnoDB Lock Waits
- Enabling or Disabling SQL Explorer and Slow Query Log
- Querying Whether SQL Explorer and Slow Query Log Are Enabled
- Exporting Slow Query Logs
- Exporting SQL Explorer Data
- Querying Whether SQL Statement Concurrency Control Is Enabled
- Enabling or Disabling SQL Statement Concurrency Control
- Querying Concurrency Control Rules of SQL Statements
- Generate Keywords of a Concurrency Control Rule from the Original SQL Statement
- Creating a Concurrency Control Rule for SQL Statements
- Deleting a Concurrency Control Rule of SQL Statements
- Querying SQL Statement Concurrency Control Tasks
- Exporting the Top SQL Template List
- Exporting SQL Execution Time Distribution
- Exporting the Slow SQL Template List
- Viewing the Instance List on the Intelligent O&M Page
- Setting a Shared Link
- Deleting a Shared Link
- Executing a SQL Diagnosis
- Obtaining Diagnosis Results
- Creating an Instance Diagnosis Task
- Querying Instance Diagnosis Reports
- Obtaining an Instance Diagnosis Report
- Synchronizing the Instance List
- Deprecated APIs
- Permissions Policies and Supported Actions
- Appendixes
-
FAQs
-
Product Consulting
- How Is DAS Billed?
- Which Data Sources Does DAS Support?
- Does DAS Support Multi-Region Access?
- Where Is SQL Execution Records Saved If I Enable This Function?
- What Should I Enter in the Database Column to Log In to a PostgreSQL DB Instance on the DAS Console?
- Will I Be Changed If I Enable Collect Metadata Periodically and Show Executed SQL Statements on the Add Login Page?
-
Managing connections
- What Should I Do If I Can't Connect to My DB Instance Due to Insufficient Permissions?
- What Should I Do If I Can't Connect to My RDS for MySQL Instance?
- What Should I Do If I Can't Connect to My ECS (MySQL) Instance?
- What Should I Do If I Can't Connect to My RDS for SQL Server Instance?
- What Should I Do If I Can't Connect to My ECS (Microsoft SQL Server) Instance?
- What Should I Do If I Can't Connect to My RDS for PostgreSQL Instance?
- What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance?
- What Should I Do If I Can't Connect to My DDS Instance?
- What Should I Do If I Can't Connect to My GaussDB(for MySQL) Instance?
- What Should I Do If I Can't Connect to My GaussDB Instance?
- What Should I Do If I Can't Connect to My DDM Instance?
- How Do I View and Modify ECS Security Group Rules?
- How Do I View and Modify Firewall Rules?
- What Should I Do If My Connection Fails?
-
Usage
- What Can I Do If Garbled Characters Are Displayed in the Exported Database Result Set?
- What Are the Precautions for Connecting DAS to a Third-Party Client?
- What Are the Username and Password for DAS?
- What Should I Do If Table Obtaining Times Out?
- How Do I Modify the Collation?
- When a user creates a data tracking task, an error message indicating that the current user does not have the OBS operator permissions is displayed.
- Resource Freezing, Release, Deletion, and Unsubscription
-
Product Consulting
- Glossary
- Videos
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Getting Started
-
User Guide
- Permissions Management
- Logging In to the DAS Console
- Adding Login Information
- Modifying Login Information
- Deleting Login Information
- Logging In to Databases Shared by Others
- MySQL DB Instance Management (Development Tool)
- Microsoft SQL Server DB Instance Management (Development Tool)
- PostgreSQL DB Instance Management (Development Tool)
- DDS DB Instance Management (Development Tool)
- Enterprise Change Approval
- Intelligent O&M
- FAQs
- Change History
-
User Guide (Kuala Lumpur Region)
- Service Overview
- Getting Started
-
User Guide
- Permissions Management
- Logging in to a DB Instance
-
MySQL
- Account Management
- Database Management
- SQL Operations
- Table Management
- View Management
- Stored Procedure Management
- Event Management
- Trigger Management
- Function Management
- Data Import and Export
- Data Generator (Not Promoted)
- Tracking and Rolling Back Data (Not Promoted)
- Task Management
- Table Structure Comparison and Synchronization (Not Promoted)
- Intelligent O&M (New Version)
- Intelligent O&M
- RDS for SQL Server
- PostgreSQL
- DDS
- DDM
- Audit
-
FAQs
-
Managing connections
- What Should I Do If I Can't Connect to My RDS for MySQL Instance?
- What Should I Do If I Can't Connect to My ECS (MySQL) Instance?
- What Should I Do If I Can't Connect to My RDS for PostgreSQL Instance?
- What Should I Do If I Can't Connect to My ECS (PostgreSQL) Instance?
- What Should I Do If I Can't Connect to My DDS Instance?
- What Can I Do If a GaussDB(for MySQL) Instance Fails to Be Connected?
- What Should I Do If I Can't Connect to My GaussDB Instance?
- What Should I Do If I Can't Connect to My DDM Instance?
- How Do I View and Modify ECS Security Group Rules?
- How Do I View and Modify Firewall Rules?
- What Should I Do If My Connection Fails?
- Usage
-
Managing connections
- Change History
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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Storage Analysis
Storage occupied by data and logs and historical changes of storage usage are important for database performance. The Storage Analysis page displays storage overview and disk space distribution of your instance. In addition, DAS can estimate the available days of your storage based on historical data and intelligent algorithms, so that you can scale up storage in a timely manner. Auto Scale, Tablespaces, Top 50 Databases, and Top 50 Tables are also available on this page.
Viewing Storage Space Usage
- Log in to the Huawei Cloud console.
- Click
in the upper left corner and select a region and project.
- Click
in the upper left corner, and under Databases, click Data Admin Service.
- In the navigation pane, choose Intelligent O&M > Instance List.
Alternatively, on the Overview page, click Go to Intelligent O&M.
- In the upper right corner of the Instance List page, search for instances by engine type, instance name, or instance IP.
Figure 1 Searching for instances
- Locate the target instance and click Details.
- Choose Storage Analysis. In the Overview area, view the space usage.
Figure 2 Overview
- The following information is displayed:
- Storage usage
- Available and total storage
- Average daily increase in last week
- Available days of storage
NOTE:
If the average daily increase in last week is 0 GB, the estimated available days of storage are unlimited and are not displayed.
- If the space is insufficient, click Scale in the upper right corner.
- The following information is displayed:
Tablespaces
This function helps you diagnose exceptions of tables, for example, counting tables with abnormal tablespace growth, tables without primary keys, and tables without indexes.
Both automatic diagnosis and manual diagnosis are supported.
- Tablespaces function is not available to free instances. To use the function, set free instances as paid instances or subscribe to Intelligent O&M.
- If the number of tables exceeds 5,000, manual diagnosis cannot be used.
- If the CPU usage exceeds 90%, manual diagnosis cannot be used.
- Tables in the Top 50 Tables are automatically diagnosed. Scope for manual table diagnosis is not limited.
![](https://support.huaweicloud.com/intl/en-us/usermanual-das/en-us_image_0000001672653930.png)
- Auto Diagnosis
The system automatically diagnoses tables at about 04:00 every day.
In the left part of the Tablespaces area, you can view tables whose tablespace has grown abnormally in the past day. You can click the number to view the diagnosis details.
Any table whose tablespace has grown by more than 10,240 MB in the past day is counted. You can also click
on the right of Auto Diagnosis to set the upper limit for daily tablespace increase.
- Manual Diagnosis
Click Re-diagnose to manually trigger a diagnosis task. This operation can only be performed once every 5 minutes.
After the diagnosis is successful, you can view the number of tables without primary keys and indexes. You can click a number to view the diagnosis details.
Figure 4 Viewing diagnosis details
Viewing Disk Space Distribution
You can view the distribution and change trend of the storage space.
![](https://support.huaweicloud.com/intl/en-us/usermanual-das/en-us_image_0000001720694957.png)
If the total number of files in your disk space (including data space, binlog space, slow query log space, relay log space, audit log space, temporary space, and other space) exceeds 10,000, information about the files or display disk space distribution and usages over time will not be collected on the console. This prevents performance slowdowns caused by collecting statistics on too many files. If this happens, contact technical support.
- Data space: Disk space occupied by user data
- Binlog: Disk space occupied by binlogs
- Slow query log: Disk space occupied by slow logs
- Relay log: Disk space occupied by relay logs
- Audit log: Disk space occupied by audit logs
- Temporary space: Disk space occupied by temporary files
- Other: Disk space reserved by the operating system for system users. About 5% of the disk space is reserved in Linux.
Top Databases and Tables by Physical File Size
You can view the top 50 databases and tables by physical file size and identify the databases and tables with high usage based on storage space distribution.
![](https://support.huaweicloud.com/intl/en-us/usermanual-das/en-us_image_0000001720775277.png)
Click View Chart to view data volume changes in the last 7 days, last 30 days, or a custom time period (spanning no more than 30 days).
- DAS collects data at about 04:00 every day.
- Physical file sizes are precisely recorded, but other fields' values are estimated. If there is a large gap between a file size and another field, run ANALYZE TABLE on the table.
- A database or table whose name contains special characters, including slashes (/) and #p#p, is not counted.
- If there are more than 50,000 tables in your instance, to prevent data collection from affecting the instance performance, top databases and tables will not be counted.
- Some statistics may be missing because data of database or tables is fluctuating.
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