The
READSEMA option specifies whether the system attempts to gain a semaphore for shared files when I/O operations are performed that
do not modify the file.
Syntax:
READSEMA
=
{
ON
}
{
OFF
}
Parameters:
- ON
- Attempt to gain a semaphore for every file operation, including READ and START operations.
- OFF
- Do not attempt to gain a semaphore for shared files during operations such as READ and START.
Comments:
Where a file is being read by multiple users, to improve throughput set this parameter to OFF.