问题
I am trying to make a very simple hard disk access monitor to work like those embedded LEDs that blink according to drive usage. That LED REALLY helps me, but the laptop I am using does not have it. =[
So, I've made a simple tray icon application, but I don't know how to determine that variable of disk access.
I've searched for it and found something like System.Diagnostics.PerformanceCounter, but I have no idea on using it for my task.
If there is another solution, I'd also appreciate! =] Thanks.
Oh! I almost forgot, it needs to detect ANY and EVERY access to the hard drive.. I've tested an application out there (with the exact same supposed function), but after some tests I could easily realize it was missing some accesses, mainly when you executed a new program.
回答1:
I've found a hard disk activity monitor sample application written in VB.NET. It's fairly simple so you should have no problem converting it to c#.
The idea is to use two Performance Counters, "Disk Read Bytes/sec" and "Disk Write Bytes/sec" for "LogicalDisk"
ReadCounter = New PerformanceCounter("LogicalDisk", "Disk Read Bytes/sec", "_Total")
WriteCounter = New PerformanceCounter("LogicalDisk", "Disk Write Bytes/sec", "_Total")
And then in your main loop (which needs to be threaded) you call NextValue to determine if there is disk activity.
R = ReadCounter.NextValue
W = WriteCounter.NextValue
The full source code is here on Microsoft's site.
来源：https://stackoverflow.com/questions/33242203/detect-if-hard-disk-is-being-accessed-or-not