GDSX (Extended General Device Support) Manual

Design and Development

Extended General Device Support (GDSX) Manual—529931-001

2-58

DYNAMIC

This dynamic parameter is bit encoded and is used to set multiple configuration

controls. Any nonzero value for dynamic signals TSCODE that dynamic SUs can be

created. If dynamic equals zero, all SUs must be preconfigured.

Dynamic^recovery

Dynamic^recovery is used to indicate whether TSCODE is to restart dynamic tasks

after a takeover. If this flag is 1, TSCODE restarts all dynamic tasks that existed at the

time of the failure of the former primary process. Setting this variable also implies that

dynamic terminals are allowed.

Dynamic^autostop

Dynamic^autostop is used to indicate whether TSCODE is to stop a dynamic SU by

calling STOP^TASK if the SU has no openers. Setting this variable also implies that

dynamic terminals are allowed.

Preconfigured SUs have an SCF autostop attribute that may be set ON or OFF. This

attribute is not used by TSCODE; it may be used as desired.

Dynamic^nowaitdepth

Dynamic^nowaitdepth is used to indicate the nowaitdepth (the maximum number of

concurrent nowaited I/Os) for files associated with dynamic SUs. Setting this variable

also implies that dynamic terminals are allowed.

Example

To use a TACL PARAM command to set autostop on and also enter a value of 10 for

nowaitdepth, add 16 (for autostop—bit 11—ON) plus the value 10 for nowaitdepth, and

set DYNAMIC equal to the total:

> PARAM DYNAMIC 26

Internal DEFINE Name CONFIG^PARAMS Name Default Value Range

dynamic dynamic^term %21 (ON) N.A.

dynamic^recovery dynamic^term.<10> 0 (OFF) 0–1

dynamic^autostop dynamic^term.<11> 1 (ON) 0–1

dynamic^nowaitdepth dynamic^term.<12:15> 1 (ON) 0–15