Dell Managed PDU LED - Manual (Page 104)

USER’S GUIDE
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When you apply an outlet control action to outlets that are members of an outlet group,
the outlets are synchronized as follows:
• For a global outlet group, use the delay periods and reboot duration configured for
the global outlet of the initiator outlet group.
• For a local outlet group, the outlets use the delay periods and reboot duration of the
lowest-numbered outlet in the group.
Purpose and benefits of outlet groups
By using groups of synchronized outlets on Rack PDUs, you can ensure that outlets
turn on, turn off, and reboot in a synchronized manner. Synchronizing control group
actions through outlet groups provides the following benefits.
• Synchronized shutdown and startup of the power supplies of dual-corded servers
prevents erroneous reporting of power supply failures during a planned system
shutdown or reboot.
• Synchronizing outlets by using outlet groups provides more precise shutdown and
restart timing than relying on the delay periods of individual outlets.
• A global outlet is visible to the user interface of any Rack PDU to which it is linked.