Operating the Expanded Access Server Task

Configuring › Expanded Access Server for Tape and Robotics › Operating the Expanded Access Server Task

Operating the Expanded Access Server Task

The following operator commands are available for the expanded access server started task. First, install the start procedure for the task. These examples assume the JCL from the preceding example.

To start the server as a stand-alone-only server, issue the following operator command:
```
S SAREAS
```
To start the server as the primary server, issue the following operator command:
```
S SAREAS,TYPE=PRIMARY
```
To start the server as a secondary server, issue the following operator command:
```
S SAREAS,TYPE=SECONDARY
```
To assign a reusable ASID to the server when it is started, issue the following operator command:
```
S SAREAS,REUSASID=YES
```
Note: The system honors a request for a reusable ASID only if REUSASID(YES) is specified in the parmlib member DIAGxx. Otherwise, the system assigns an ordinary ASID.

Important! Not all Virtual tape products support REUSASID=YES. If the SAREAS task is accessing virtual tapes, the Virtual tape vendor software must also support REUSASID=YES. Otherwise, S0D3 abends are issued to the SAREAS task.

To turn off REUSASID support for a SAREAS task started with REUSASID=YES, issue the following commands:
```
P SAREAS
```
Stops tape server task started with REUSASID=YES.
```
S SAREAS
```
Starts tape server with the default REUSASID=NO.
To stop the server, issue either of the following operator commands:
```
P SAREAS
F SAREAS,STOP
```
To alter dynamically the number of threads, issue the following operator command:
```
F SAREAS,NTHREADS=nn
```
Immediately reduces or increases the number of threads in use. The value specified cannot exceed the value specified for NTHREADS when the task was started.
If a communications problem occurs (for example, L-SERV is shut down and restarted) you can reset communications for a primary or secondary server by issuing the following operator command:
```
F SAREAS,COMMRESET
```

Note: All requests awaiting a response from the server are canceled.

All tapes that are currently allocated by the server can be immediately unloaded by issuing the following operator command:

F SAREAS,UNLOAD

Immediate unload can be useful if the CA View backup cycle or the SARPAC tape consolidation program requires a tape that is currently mounted by the server.