Send Multiplex Level
In the sending system, you can specify the number of times that HULFT executes sending at a time. One parameter to specify the number is the Send Job Multiplex Level, which defines the multiplex level of sending in entire sending system. The other parameter to define the number is the Send Process Multiplex Level by Host, which configures the multiplex level of sending per host. The details are explained in this section.
(1) Send Multiplex Level of Entire System
You can set the multiplex level of sending for the entire system by specifying the Send Job Multiplex Level (SNDPSNUM) in the System Environment Settings.
When HULFT submits a number of the Send File commands more than the value specified in the Send Job Multiplex Level (SNDPSNUM), the application places the excess on the Resend Queue and waits until the ongoing process ends and fresh transfer is ready to start.
(2) Send Multiplex Level by Host
You can specify the multiplex level of sending per host, by configuring the Send Process Multiplex Level by Host (HOSTSPSNUM) in the Host Information.
When HULFT submits a number of the Send File commands more than the value specified in the Send Process Multiplex Level by Host (HOSTSPSNUM), the application places the excess on the Resend Queue and waits until the ongoing process ends and fresh transfer is ready to start.
HULFT applies the modified setting value of the Send Process Multiplex Level by Host (HOSTSPSNUM) starting from the Send File commands acknowledged after the change.
When HULFT issues the requests more than the value specified in the Send Job Multiplex Level (SNDPSNUM), the application treats the requests as waiting state, even if the number of request does not exceed the value specified in the Send Process Multiplex Level by Host (HOSTSPSNUM). Make the specified value of the Send Process Multiplex Level by Host (HOSTSPSNUM) not greater than that of the Send Job Multiplex Level (SNDPSNUM).
The multiplicity of the entire system counts all instances of sending-side transferring including instant transfers.
On the other hand, the multiplicity by host only counts instances of sending-side transferring that uses management information. Instances of instant transfer are not included in the multiplicity by host.
Figure 2.11 Send Job Multiplex Level and Send Process Multiplex Level by Host