HP Tower Uninterruptible Power System - Manual (Page 62)

Configuration and operation 62
Upon reset, the value defaults to the maximum value of 99999 seconds.
• The Operating system shutdown time value entered for the HPPP Administrator must be equal to or
greater than the HPPP Client configured with the greatest operating system shutdown time.
• After the operating system shutdown begins, the shutdown process cannot be canceled, even if utility
power is restored.
• For load shedding, each Client shuts down based on the delay settings for that Client. This increases the
backup time for the remaining Clients.
• The UPS powers down after all load segments power down.
• If any other condition happens during the initiated shutdown, such as the battery capacity is under limit,
the HPPP Administrator sends a shutdown command to all Clients to start the shutdown process earlier.
The following example shows the shutdown parameters for a UPS with two load segments, one connected
server that has HPPP Administrator installed, and three connected servers that have HPPP Clients installed on
each server.
Item Description
1 Utility failure
2 Utility restore
3
Utility
4 Client 1 on load segment 1
5 Client 2 on load segment 1
6 Load segment 1
7 Client 3 on load segment 2
8 Administrator on load segment 2
9 Load segment 2
10 UPS
On utility
On battery (Shutdown initiated after)
Operating system shutdown time