Maximum- shutdown-time negotiation, 0d[lpxp6kxwgrzq7lph qhjrwldwlrq, Maximum-shutdown-time – APC Network Management Card none User Manual

Page 47: Device manager menus

Network Management Card User’s Guide

Device Manager Menus

PowerChute® (UPS PowerChute network shutdown)

FRQWLQXHG

Maximum-
Shutdown-Time
negotiation

The

Maximum Shutdown Time

setting provides the delay needed to

make sure that a server will have enough time to shut down safely when
a graceful shutdown is initiated by the Management Card or by
PowerChute network shutdown client at the server.

Note:

For information about the

Turn UPS Off Gracefully

Reboot UPS

Gracefully

, and

Put UPS To Sleep Gracefully

options that use

this delay, see

UPS Control on page 33

The time reported by the

Maximum Shutdown Time

setting represents

the maximum delay needed by at least one of the servers listed in the

Configured Client IP Addresses

list. This time is determined by a

negotiation process that is initiated when any of the following occurs:

•

The Management Card turns on (a System: Coldstart event).

•

The Management Card is reset (a System: Warmstart event).

•

You select

Force negotiation

from the

Maximum Shutdown

Time

setting’s drop-down menu, and click

Apply

During the negotiation process, which can take up to 10 minutes to
perform, each of the servers listed in the

Configured Client IP

Addresses

list is contacted to determine the shutdown delay needed by

each server. At the end of this process, the delay time defined by the

Maximum Shutdown Time

setting will be changed, if necessary, to

reflect the highest delay time reported by the servers. For example, if

minutes

was the

Maximum Shutdown Time

setting determined during

the last negotiation process, and a new server has been added to the

Configured Client IP Addresses

list that requires a 4-minute shutdown

delay,

4 minutes

will be the

Maximum Shutdown Time

setting at the

end of the new negotiation process. Conversely, if none of the servers
need more than a 2-minute delay,

2 minutes

will be the

Maximum

Shutdown Time

setting.

Note:

To view a flowchart presentation of the negotiation process, see
the PCNS Maximum Shutdown Time Negotiation.pdf file
provided in the .\trouble\ directory on the APC Network
Management Card utility CD. The .\trouble\ directory also has
two other flowchart presentations that relate to PowerChute
network shutdown: PCNS Shutdown Behavior.pdf and PCNS
Low-Battery Shutdown Behavior.pdf.