IODEV parameter
Type of I/O device
Summary
- Default value
- 1
- Parameter type
- User
- Where set
- On user's parameter line
- Related products
- All
- Introduced
- Model 204 V2.1 or earlier
Description
IODEV specifies the input/output device type.
Valid settings of IODEV are:
| IODEV | Access method/device type |
|---|---|
| 1 | CCAIN/CCAPRINT (User 0 only) |
| 3 | BSAM |
| 7 | SNA Communications Server 3270 |
| 11 | Remote User Language thread (full screen) |
| 19 | VTAM or TCP/IP (Horizon SQL thread) |
| 23 | Host Language IFAM thread |
| 25 | FUSI thread, new in version 7.6 of Model 204. These are created implicitly; as many threads are created as is the value of the FUNTSKN parameter. There is no reason to attempt to define these threads explicitly. |
| 27 | VTAM (Horizon thread) |
| 29 | Remote User Language thread (line-at-a-time) |
| 37 | SNA Communications Server 3767 and NTO (z/OS)
Note: Value 37 is no longer supported as of Model 204 version 7.6. |
| 39 | IUCV User Language thread (line-at-a-time) |
| 41 | IUCV User Language thread (full screen) |
| 43 | IUCV Host Language Interface thread |
| 45 | CMS line-at-a-time console. This z/VM device setting is an ALTIODEV value; is cannot be specified on the user's parameter line. |
| 47 | CMS full screen console. This z/VM device setting is an ALTIODEV value; is cannot be specified on the user's parameter line. |
| 49 | VTAM or TCP/IP Horizon Remote Command Line (RCL) thread. |
| 51 | SNA Communications Server (Parallel Query Option/204 thread) |
Note: In addition to the above table of valid settings of the IODEV parameter, the value of IODEV on some Model 204 threads can be set as a result of other parameters:
Parameter Recommended Meaning SDAEMDEV 15 IODEV number for Sdaemons TNDEV 21 IODEV number for TNSERV threads