IBM N series Hardware Manual page 115

Tip: Under normal conditions, you do not need to perform takeover or giveback on an IBM
N series system. Usually, you must use it only if a controller must be halted or rebooted for
maintenance.
Complete the following steps:
1. As shown in Figure 7-6, you can perform the takeover by using System Manager and
clicking Active/Active Configuration  Takeover.
Figure 7-6 System Manager initiating takeover
Chapter 7. Highly Available controller pairs
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