If you choose to use multipathing on your system, set it up before you install Adaptive Server.
HP-UX 11.31 IO stack offers the native MultiPathing (nMP) feature, which is embedded in the I/O stack. Mulipathing is enabled by default using nMP, and automatically detects and configures multipathing for all devices.
The /dev/rdisk/diskN devices are the persistent device special files. These are the device names that should be used to access the multipathed devices