Allocate Object (ALCOBJ) and Deallocate Object (DLCOBJ) commands

The ALCOBJ command locks DDM files on the source server and the associated remote files on the target servers.

When the target is an iSeries™ server or a System/38™, resulting locks on the remote files are the same as if the files were local files. When the target is neither an iSeries server nor a System/38, equivalent locks are obtained, although the target server may promote the lock to a stronger lock condition than was specified on the ALCOBJ command.

Note: On servers that are neither iSeries nor System/38 target servers, remote files are locked with the specified lock condition, and on iSeries and System/38 target servers only, remote members are locked with a minimum specified lock condition. (iSeries or System/38 remote files are locked with shared-read locks.)
Related reference
ALCOBJ (Allocate Object) command
DLCOBJ (Deallocate Object) command