zIIP Boost with Reserved zIIPs

In this case, you have some zIIPs that are defined as reserved, and some number of those can be backed by physical zIIPs. Those reserved zIIPs that can be backed by physical zIIP will be brought online by the system at the beginning of the boost period, and then taken offline when the boost period ends.

As above, any zIIPs brought online will provide even more capacity and parallelism during the boost period.