Format of NetWare "Get Disk Channel Statistics" request buffer:
Offset	Size	Description	)
 00h	WORD	0002h (length of following data)
 02h	BYTE	D9h (subfunction "Get Disk Channel Statistics")
 03h	BYTE	channel number
SeeAlso: #02038,#02232 at AX=F217h/SF=D9h