When capping is enabled for a z13s server, this capping level is used as a threshold for a
warning message that informs you that the z13s server went above the set cap level. Being
under the limit of the cap level is equal to the maximum potential power value (see 10.4.2,
"Query maximum potential power" on page 381).
More information about energy management with zManager is available in IBM zEnterprise
Unified Resource Manager, SG24-7921.
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Chapter 10. Environmental requirements