Suspend My i
An enhancement made in 7.1 was the support of Suspend/Resume, a feature of PowerVM that was already supported on AIX and Linux.
From the RFA:
PowerVM includes support for an IBM i partition to be suspended, and later resumed. Using Suspend/Resume, clients can perform long-term suspension of partitions, which frees server resources used by that partition, and later resume operation of that partition and its applications on the same server.