Originally posted by: harigm

Live Partition Mobility (LPM) allows active partitions to be migrated from one Power server to another Power server without any downtime.  LPM provides for 24x7 operations even if there is a planned outage such as for hardware repairs or firmware updates.  Starting with server firmware FW920, HMC V9 R1.920.0 and/or Novalink 1.0.0.10, the partition data sent between the servers will automatically be encrypted for better security and compressed for better performance.

Live Partition Mobility (LPM) Data Encryption and Compression