IVM & HMC difference

With IVM, dual VIO server configuration is not possible
- system power-on must be done by physically pushing the system power-on
button or remotely accessing ASMI
- Multiple systems can be managed via one HMC interface, but IVM can mange
only one system
- In Power5 some Power6 systems, you cannot assign physical adapters to
partitions by IVM
- Only one virtual SCSI adapter is supported for IVM-managed LPARs
- Multiple Shared Processor Pools are not supported on IVM-managed POWER6
systems

regards,
Guru