Format of NWCACHE cache statistics:
Offset	Size	Description	)
 00h	WORD	version
 02h	BYTE	memory type
 03h	WORD	initial cache size in KB
 05h	WORD	current cache size in KB
 07h	DWORD	number of read requests
 0Bh	DWORD	number of physical reads performed
 0Fh	DWORD	number of write requests
 13h	DWORD	number of physical writes performed
 17h	BYTE	delay ticks for deferred write (0 if no deferral)
 18h	WORD	maximum number of sectors in lookahead buffer
 1Ah	WORD	number of disk errors
 1Ch	WORD	number of cache memory errors
SeeAlso: #03091