Int 21 Fn E3  - Novell Netware - File Server - Get File System Statistics  [N]

   AH = E3h subfn D4h
   DS:SI -> request buffer (see below)
   ES:DI -> reply buffer (see below)

Return: AL = status
       00h successful
       C6h no console rights

Notes: this function is supported by Advanced NetWare 2.1+
   the calling workstation must have console operator privileges

See Also: AH=E3h/SF=0Eh,AH=E3h/SF=C8h,AH=E3h/SF=D9h,AH=E3h/SF=E7h,AH=E3h/SF=E8h

Format of request buffer:
Offset Size    Description
 00h   WORD    0001h (length of following data)
 02h   BYTE    D4h (subfunction "Get File System Statistics")

Format of reply buffer:
Offset Size    Description
 00h   WORD    (call) 0028h (size of following results buffer)
 02h   DWORD   clock ticks since system started
 06h   WORD    maximum open files set by configuration
 08h   WORD    maximum files open concurrently
 0Ah   WORD    current number of open files
 0Ch   DWORD   total files opened
 10h   DWORD   total file read requests
 14h   DWORD   total file write requests
 18h   WORD    current changed FATs
 1Ah   WORD    total changed FATs
 1Ch   WORD    number of FAT write errors
 1Eh   WORD    number of fatal FAT write errors
 20h   WORD    number of FAT scan errors
 22h   WORD    maximum concurrently-indexed files
 24h   WORD    current number of indexed files
 26h   WORD    number of attached indexed files
 28h   WORD    number of indexed files available

Note:  all fields except the first are big-endian