Quote:
Originally Posted by Quoth
Mapping a share to a drive letter absolutely doesn't make it the same as a local drive mount.
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"Mapping a share to a drive letter"...how quaint.
That said, if the target of a file operation is not local, but is on a Windows machine, you still get all the same semantics as if it were local. File locking, security, delete, rename, open, read, etc., all behave in exactly the same way. You have full access to the details of the NTFS file system (multiple streams, sparse files, compression, etc.). What you can't access are objects that deal with the volume itself (e.g., the MFT).
And, unless you trace from the top of the path all the way to the bottom, examining every step for reparse points, it's very hard to know if the file is not on a local drive.