NetBase for MPE Reference Guide

NetBase Shadowing
5-11
SHADOW Command Options
The SHADOW command provides a number of options that affect the way the shadow copy of a file
or database is accessed or updated by the NetBase posting process. The posting process uses the
SHADOW directory record when opening the file for updates and to mark the status of those updates
to the shadow file. The SHADOW command is only issued on the system where the shadow copy of a
file or database resides. The SHADOW command has the following format:
D> SHADOW filename [=copyfilename][;options]
The following table lists SHADOW command options for affecting the way the shadow copy of the
file is posted. For a full description of these options, turn to Chapter 4 “Using NBDIR”.
Option Description
PASS
Database password that grants write access
DBX
Needed if TPS is not used and using DBX Transactions
LOG
Enables Post Logging for a file
USEREXIT
Enables Post User Exits for this file
MODE1
Open shadow database in mode 1
OVERRIDE
This option applies only to MPE files. It directs the posting process to post
file updates to a shadowed disk file ignoring certain synchronization
errors, such as those that occur with the FUPDATE intrinsic.