Determining the channel connection address (CCA) for RVA
The channel connection address (cca) on an RVA is relative to the LCU and is always between 00 and 3F. If the device numbers have been generated as a contiguous group of 256 addresses, the CCA can be calculated from the last two digits of the device number as shown in Table 6. For example, for device numbers AAC0 - AAFF subtract X'C0' from the last two digits of the device number and the corresponding CCA'a are 00 - 3F.
| Device Number | LCU = | CCA =
|
|---|---|---|
| 00 - 3F | LCU00 | 00 - 3F |
| 40 - 7F | LCU01 | 00 - 3F subtract X'40' from device number |
| 80 - BF | LCU02 | 00 - 3F subtract X'80' from device number |
| C0 - FF | LCU03 | 00 - 3F subtract X'C0' from device number |
When you are running PPRCOPY on an RVA that supports 1024 addresses, you can determine the CCA by running the PPRCOPY QUERY (without the PATHS parameter) on the volume you will be using for the primary and also on the volume that you are using for the secondary. When run on each volume in simplex state, look in the Primary column for the information for the volume. You can then use the CCA value listed in this column for the PPRCOPY commands.