A Windows 2012 server is showing paths starting with D: and with D:2 in Resource Monitor, e.g.:
System 4 D:2\$LogFile sqlservr.exe 1808 D:2\SQL\LOG\Sp2013_Config_log.ldf
What does it mean when a path begins with "D:2\" rather than "D:\"? Is this particular to Resource Monitor?
I found this similar question, What does "C:0" mean in file path?, but I don't think we are using mounted volumes as in that question and it hasn't been answered anyway.
Assuming it is related to mounted volumes, I found this thread on TechNet that supports the suggestion that it is related to both mounted volumes and Resource Monitor but doesn't give any explanation:
Here is the view from Disk Management as requested: