What are some common WMI queries [closed]

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I'm building a C# monitor app which uses WMI to grab some performance details of a remote computer. What are some good WMI queries to grab helpful stats such as CPU load, RAM usage, HDD free space, 开发者_运维技巧etc.

For example, you can get the CPU load from the property "LoadPercentage" with the query "SELECT * FROM Win32_Processor".

What are some other useful properties & queries?

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I think it's a bit complicated recommend a couple of classes in particular because the WMI is extensive and depends on the type of information you wish to obtain.

My recommendation is that you see the following links.

• WMI Reference
• WMI Classes
• WMI Win32 Classes

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Several classes are used for what you are asking for. I think a good place to start is to separate your (mostly) static classes from your performance classes.

Static

• Computer System - Win32_ComputerSystem
• Operating System - Win32_OperatingSystem
• Processor Info - Win32_Processor
• HDD - Win32_DiskDrive
• Disk Partitions - Win32_DiskPartition
• Logical Disks - Win32_LogicalDisk
• Logical Disk to Partition - Win32_LogicalDiskToPartition
• Memory - Win32_PhysicalMemory, Win32_PhysicalMemoryArray
• Network - Win32_NetworkAdapter (this class has a high cpu penalty if called too often), Win32_NetworkAdapterConfiguration

Performance Counters

• Processor Utilization - Win32_PerfRawData_PerfOS_Processor
• Memory Utilization - Win32_PerfRawData_PerfOS_Memory
• Network Utilization - Win32_PerfRawData_Tcpip_NetworkInterface

There are many more, but these will cover what you are asking for.

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You would appreciate http://gallery.technet.microsoft.com/scriptcenter/en-us. It's very nicely organized. I got all the queries for the above stats you mentioned from that website, and basically just copied and pasted.

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You can Also use Win32_Products.

This gives you all istalled software on the machine. You can use WMI to repair / Uninstall these products. Very useful on Remote Machines.