ASA Database Administration Guide
  The Database Server
    The database server
      Database server options

-d server option

Function 

Use POSIX I/O.

Syntax 

{ dbsrv9 | dbeng9 } -d ...

Applies to 

NetWare. The use of this option on Windows platforms has been deprecated.

Description 

The -d option forces the use of POSIX I/O rather than DFS (Direct File System) I/O. This switch is provided as a workaround for bugs in old versions of DFS. Note that asynchronous I/O is not available when using POSIX I/O.

This option applies to NetWare systems only.