port.
large block interface (LBI)
The set of basic sequential access method (BSAM), basic partitioned access method (BPAM), and queued sequential access method (QSAM) interfaces that deal with block sizes in 4-byte fields instead of 2-byte fields.
The format of a sequential data set that is not in basic format or extended format and has a maximum size per volume that can exceed 65 535 tracks. There is no minimum size requirement for a large format data set. See also basic format, extended format.
large message performance enhancement outbound (LMPEO)
In VTAM, a facility in which VTAM reformats function management data (FMD) that exceed the maximum request unit (RU) size, as specified in the BIND, into a chain or partial chain of RUs.
- A data object whose data type supports the storage and manipulation of more data than most other data types.
- A sequence of bytes with a size ranging from 0 bytes to 2 gigabytes less 1 byte. There are three types of LOBs: binary large objects (binary), character large objects (single-byte character or mixed), and double-byte character large objects (double-byte character). See also binary large object, character large object, double-byte character large object.
Large System Performance Reference (LSPR)
A ratio that is used by IBM to assess the relative processor capacity in an unconstrained environment for specific benchmark workloads and system control programs.
large table space
A table space that stores persistent data in database-managed space but that has a larger space limit than that of a regular table space. See also permanent table space.
laser beam printer
See laser printer.
A nonimpact printer that creates, by means of a laser beam directed on a photosensitive surface, a latent image which, is then made visible by a toner and transferred and fixed on paper. (T)
See library access system interface.
- An optimized commit flow for either presumed-nothing or presumed-abort protocols in which the last agent, or final participant, becomes the commit coordinator. This flow saves at least one message.
- An optimization that cuts the number of two-phase commit flows to one agent in half by leaving the last agent out of the first phase of the commit process and giving the last agent the commit decision during the second phase. An initiator or last agent can use this optimization with only one of its subordinates, which is called the optimized last agent (or simply the last agent).
last agent pending (LAP)
The last agent pending logical unit of work (LUW) state indicates that the current LUW is in doubt. This system has prepared to commit, but has not received the final vote from the last agent. The LAP state only occurs at the initiator and at a last agent.
The element visited last in an iteration over a collection. Each collection has its own definition for last element. For example, the last element of a sorted set is the element with the largest value.
A request unit (RU) whose request header (RH) end chain indicator is on and whose RH begin chain indicator is off. See also RU chain.
last-in first-out costing
A method of cost accounting that can be used to make an inventory valuation, based on actual receipt costs. Last-in first-out costing uses the "last in" (newest) item cost for inventory transactions. See also first-in first-out costing.
last record indicator
In RPG, an indicator that signals when the last record (LR) is processed. This indicator can then be used to condition calculation and output operations that are to be done at the end of the program.
See lexical answer type.
- An electronic circuit that permanently records (until reset) the status of a signal.
- An internal mechanism for controlling concurrent events or the use of system resources.
- A programming device that provides short-term serialization for IMS tasks running in the online IMS system. Similar in function to an z/OS lock.
late arriving fact processing
The process of dealing with transaction records that arrive in the data warehouse out of sequence. These transactions are linked back to their dimension rec