NetBase for MPE Reference Guide

Using NBDIR
4-21
Parameter Description
DUALACC
Enables NetBase to switch from shadow (local) to remote on locks,
staying remote until unlock is enabled. Pending locks must be
disabled on the shadow system.
LOCAL
If a file is defined with the LOCAL option, NetBase always opens the
local copy of the file. If the local copy is a shadow copy, access to
the file is limited to read only.
LOCALACC
Same as LOCAL option (above), except that NetBase returns the
original access options when requested.
MASTER
If a file is defined with the MASTER option, NetBase always opens
the master copy of the file even if a shadow copy exists locally.
READ
Specifying this parameter allows read access only to the shadow
copy of the file. If access other than read access is requested, access
to the file or database is denied.
ALT=node [,node]
Alternate node for remote access. Any alternate node specified may
be specified by node number or by node name.
BUFONLY
The parameter prevents NOBUF/NOMR access to the file. When
BUFONLY is set to Y and a file is opened without MR, NetBase sets
the BUF(A) to zero, therefore insuring buffering.
CLOSE
If specified, the shadow copy of the file is closed when the posting
of shadow transactions is complete.
EXCLUDE
This option is only applicable for data set shadowing of IMAGE
files. It specifies that all the datasets in the database, except those
specified with the DSET command, will be shadowed.
INCLUDE
This option is only applicable for data set shadowing of IMAGE
files. It specifies the only those datasets in this database that are
defined with the DSET command will be shadowed.
IMAGELOG
This option identifies the file as an IMAGE log file to be shadowed.
INFO
This option is only applicable for IMAGE files. It causes NetBase to
look for and open a local copy of the root file to satisfy DBINFO
calls. This option greatly reduces the networking overhead for
programs like QUERY and 4th GLs that make extensive use of
DBINFO.