| Parameter | Specify . . . | Possible Values | Default |
|---|---|---|---|
| DUALCLD | the device type to be used for dual command logging. | see text | value of DEVICE parameter |
| DUALCLS | the number of blocks available for each dual command log. | Min 16, Max 16 777 215 | none |
The DUALCLD and DUALCLS parameters specify the type of external storage device used for dual command logging and the number of blocks available for each dual command log dataset. These parameters must be used together; if you specify one parameter, you must also specify the other parameter. If you specify a user exit, it must be UEX2.
The Adabas Installation documentation specifies the device types that Adabas supports.
Both dual command logging datasets must be formatted using the ADAFRM utility before they are used.
The maximum size of the dataset depends on the limits of the operating system and on the requirements of the user.
Run the Adabas nucleus with command logging. Use a model 3380 device for dual command logging. The size of each command log dataset is 1350 blocks, based on an allocation of 10 cylinders. (Each cylinder of a 3380 device has 15 tracks, and each track can contain 9 blocks of command log data. Thus, 10 cylinders = 10 15 9 = 1350 blocks).
ADARUN PROG=ADANUC,LOGGING=YES,DUALCLD=3380,DUALCLS=1350
