Abstract: A data center system management device receives power configuration information for one or more power groups. Each power group has one or more servers. The power configuration information has a power group power limit for each power group. The power budgets are sent to server control units within each power group. Messages are received from each of the server control units, the messages including information to indicate whether servers in the power groups have a power deficit or a power surplus, and a number of power units for the power deficit and power surplus for each server. The server power budgets of the one or more servers in each of the one or more power groups based on power deficits and power surpluses within each power group using a priority based reallocation mechanism.

Abstract: A method includes ranking a plurality of servers in a network environment according to power characteristics, and choosing a server from the plurality of servers for placement of a service profile according to at least a priority specified in the service profile and the server's rank. The ranking includes identifying power groups into which the plurality of servers are partitioned, identifying respective power group caps of the power groups, determining respective power ranges and respective power supply multipliers of the plurality of servers, calculating a score of each server in the plurality of servers, and assigning ranks to the scores. Choosing the server includes partitioning the servers into priority sets according to respective ranks of servers, and searching the priority sets beginning with a priority set having the priority specified in the service profile until a suitable server is found.

Abstract: A method includes ranking a plurality of servers in a network environment according to power characteristics, and choosing a server from the plurality of servers for placement of a service profile according to at least a priority specified in the service profile and the server's rank. The ranking includes identifying power groups into which the plurality of servers are partitioned, identifying respective power group caps of the power groups, determining respective power ranges and respective power supply multipliers of the plurality of servers, calculating a score of each server in the plurality of servers, and assigning ranks to the scores. Choosing the server includes partitioning the servers into priority sets according to respective ranks of servers, and searching the priority sets beginning with a priority set having the priority specified in the service profile until a suitable server is found.

Abstract: A data center system management device receives power configuration information for one or more power groups. Each power group has one or more servers. The power configuration information has a power group power limit for each power group. The power budgets are sent to server control units within each power group. Messages are received from each of the server control units, the messages including information to indicate whether servers in the power groups have a power deficit or a power surplus, and a number of power units for the power deficit and power surplus for each server. The server power budgets of the one or more servers in each of the one or more power groups based on power deficits and power surpluses within each power group using a priority based reallocation mechanism.