Adabas Device Types and Block Sizes

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# Adabas Device Types and Block Sizes

The standard characteristics of the device types supported by Adabas in environments under the z/OS operating systems are summarized here.

- Supported Adabas Device Types

## Supported Adabas Device Types

The standard characteristics of the device types supported via the ADARUN DEVICE parameter in z/OS environments are summarized in the following table. Adabas block sizes and blocks per track are provided for each Adabas component for each device type.

Device | Trks/Cyl | ASSO | DATA | WORK | PLOG/RLOG | CLOG/ALOG | TEMP/SORT/DSIM | Notes
--- | --- | --- | --- | --- | --- | --- | --- | ---
3390 | 15 | 2544:18 | 5064:10 | 5724:9 | 5724:9 | 5064:10 | 8904:6 | 1
8390 | 15 | 3440:14 | 6518:8 | 10706:5 | 10706:5 | 8904:6 | 8904:6 | 1
8391 | 15 | 4136:12 | 10796:5 | 13682:4 | 13682:4 | 8904:6 | 18452:3 | 1
8392 | 15 | 4092:12 | 12796:4 | 18452:3 | 18452:3 | 18452:3 | 18452:3 | 1
8393 | 15 | 4092:12 | 27644:2 | 27990:2 | 27990:2 | 27990:2 | 27990:2 | 1
3380 | 15 | 2004:19 | 4820:9 | 5492:8 | 5492:8 | 4820:9 | 7476:6 | 2
8380 | 15 | 3476:12 | 6356:7 | 9076:5 | 9076:5 | 9076:5 | 9076:5 | 2
8381 | 15 | 3476:12 | 9076:5 | 11476:4 | 11476:4 | 9076:5 | 9076:5 | 2
8385 | 15 | 4092:10 | 23292:2 | 23468:2 | 23468:2 | 23468:2 | 23468:2 | 2

Notes:

1. The 3390 and 839n device types are to be used for all disks emulating 3390 devices. Device types 839n provide larger block sizes than the default 3390.
2. The 3380 and 838n device types continue to be supported for 3380 devices. Device types 838n provide larger block sizes than 3380.