NET/MASTER Management Services (MS) Command Reference Manual

LBANNER
UDBCTL OPEN
NonStop NET/MASTER MS Commands
115412 Tandem Computers Incorporated 2–579
INPUT
opens the UDB or the first file in a UDB pair for read-only access. If you specify
both the BUFFERED and INPUT operands, BUFFERED is ignored.
For a UDB pair, the INPUT operand applies only to the first UDB in the pair. The
second UDB is always given the INPUT attribute because it is always opened for
read-only access. (The attribute is displayed for both UDBs, however, by the
SHOW UDB command.)
RESET
performs a Guardian PURGEDATA operation on a UDB or the first file in a UDB
pair when it is opened. This logically removes all data from the UDB by setting
the end-of-file (EOF) pointer to 0.
For a UDB pair, the RESET operand applies only to the first UDB in the pair. The
second UDB is always opened for read-only access.
Note You cannot use this operand with edit files.
RECSIZE= buffer-size
defines the I/O record size used by NonStop NET/MASTER MS for the UDB
when communicating with processes (as a result of using the FILE verbs from an
NCL process). You can specify a value from 1 through 32,000.
If the targeted UDB is not a process, the value is ignored. This operand allows you
to override the actual record size of the process (obtained using the Guardian
FILERECINFO procedure call) with the value you specify.
SEQUENTIALBUFFERING
enables sequential block buffering to the UDB or UDB pair. For a UDB pair, this
applies when reading from either the first or second file in the pair.
NONSHARED
specifies private sequential block buffering.
SHARED
specifies shared sequential block buffering.
SWGUID
controls whether a UDB or UDB pair is opened using the current Guardian user ID
(GUID) or the GUID of NonStop NET/MASTER MS when an NCL process uses
the FILE OPEN verb.