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How to identify which device corresponds to \device\harddisk2

I have errors periodically appearing in System log that read like this:
"An error was detected on device \Device\Harddisk2\DR82 during a paging operation." (the numbers after DR change each time)
I also get random pop-ups saying that "the device in drive G: needs to be formatted".
The problem is, there is no harddisk2 or drive G:. Disk Management only shows disk 0 (containing C: and E:) and disk 1 (containing F:) and also a cd-rom D:

How can I find out which device tries to pose as disk 2? Any logs or queries to do so?

Hardware is HP ProLiant ML350 G6 running Windows Server 2008 R2.
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Tom Cieslik
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Run elevated CMD window

Then run program DISKPART

Write command

list disk and click enter
Compare all disk by capacity
You going to be able see disk 2 capacity and probably you going to be able verify what disk you have problem with.
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As expected, there is no Disk 2 in the output.
So it maybe computer loosing connection to this device periodically ?
Maybe this is some USB device like flash Drive or micro memory card or some card in printer.
Look around !

Can you post screenshot from your diskpart window ?
Windows event viewer is 1 based,  diskpart is 0 based so if event viewer says hardisk2 dispart list disk it will be disk 1
A screen shot of diskmanagement would be helpful and diskpart
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Accept: networkn (https:#a42052221)

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