Solution : https://service.sap.com/sap/support/notes/1459538 (SAP Service marketplace login required)
Key words : 
partition type dedicated lpar==============maxcpus = number <vcpu>, ibm/aix simultaneous multi-threading, shared uncapped lpar====================maxcpus = min, shared capped lpar==================maxcpus = entitlement, solution general information past experiences, smt=offmaxcpus = number <vcpu> 1, called guaranteed capacity corresponds, shared uncapped lpar, simultaneous multi-threading, livecache/maxdb parameter maxcpus
Related Notes : 
       
| 1173395 | FAQ: MaxDB configuration | 
| 1147334 | CPH activation of OS data for SAP Remote Services | 
| 1142243 | MaxDB release for virtual systems | 
| 1102760 | PowerVM Live Partition Mobility | 
| 994025 | Virtualized OS environments in the operating system monitor | 
| 936058 | FAQ: SAP MaxDB Runtime Environment | 
| 833216 | Parameter values as of liveCache Versions 7.5, 7.6 and 7.7 |