hplpcfg /s hba.ini generates hba.ini with the following content:
[HBA0]
WWID=11111111
HostAdapterBiosEnable=1
SelectBootEnable=1
BootDeviceWWID=
BootDeviceLUN[0]=
You must edit hba.ini and add the following boot device information:
[HBA0]
WWID=11111111
HostAdapterBiosEnable=1
SelectBootEnable=1
BootDeviceWWID=22222222
BootDeviceLUN[0]=3
You must then invoke the tool to load the contents of hba.ini input to the HBA NVRAM: hplpcfg /l hba.ini.