foreword
Doing a good job in daily inspection is an important step in database management and maintenance, and it is necessary to register the date and results of each inspection, and may need to issue an inspection report.
This series aims to address some common pitfalls:
- I don't know what to check
- I don't know how to check easily
- Too many machines, check up trouble
- Difficulty in generating reports and inability to visualize results
In most cases, there will be a hardware team specially responsible for inspection of the hardware of the server, but as the manager of the database server, we must always be vigilant. , or performance problems caused by hardware configuration shrinkage, which is also the reason for the necessary hardware inspection.
General situation overview
1. On the [Check Items] - [All] or [Environment] page, you can view the overall system hardware resource usage. If a hardware problem affects the database, the detection will raise an alarm problem.
2. On the [System]-[Hardware] page, you can view detailed information such as processor, physical memory, disk, and network card.
Operating environment and version
View operating system information and SQL Server information in [System] - [Software Environment]
disk usage
There is no need to introduce too much disk space. When there is little disk space left, it needs to be planned and cleaned up in time. It is also necessary to plan the disk according to the incremental situation of the database (the inspection method of data increment will be introduced in the database inspection)
1. You can view the disk space graphically on the [Overview] page of SQL Expert Cloud
2. In [System] - [Hardware] - [Disk], you can view detailed information such as disk usage and physical disk division.
3. Disk pressure analysis
Disk pressure can be diagnosed through [Performance Counter] (for details, please refer to: System Disk Pressure Analysis)
memory usage
1. On the [Overview] page of SQL Expert Cloud, you can graphically view the current available memory of the server.
2. On the [System]-[Hardware] page, you can view the detailed information of the physical memory.
3. Analyze memory pressure
Memory pressure can be diagnosed through [Performance Counter] (for details, please refer to: System Memory Pressure Analysis)
Processor situation
1. You can view the server CPU status graphically on the [Overview] or [Performance Counter] page of SQL Expert Cloud.
2. Whether the CPU can be fully recognized or used
On the [Check Items] - [All] or [Environment] page, you can view the overall system hardware resource usage. A warning will appear if the CPU cannot be detected by the CPU or if the number of CPUs detected is less than the system configuration.
Web environment
1.在【系统】-【硬件】页可查看物网卡详细信息。
2.在【性能计数器】页查看系统网络压力情况
总结
日常巡检旨在及时发现系统问题和潜在风险，是任何数据库管理员、运维人员必要的操作，个人建议核心系统每月至少一次详细的体检，辅助系统每三个月至少一次体检，以保证系统正常运行，消灭隐患，运维人员不在扮演救火队员的角色，让数据库运维管理不再难以入手。