Specifications

34 Implementing UPS Configurations with Microsoft Cluster Server
The operating system shutdown is started from the command file, not by using
the PowerChute PLUS Shut Down Server action. When using this action, the
server would be stopped after a maximum delay of 300 seconds. Since the time
necessary to take a cluster resource offline varies, 300 seconds might be too
short. Therefore, the script utilizes the SHUTGUI.EXE tool from the Microsoft
Windows NT Resource Kit CD.
3.2.2 Example configuration with a single UPS
In our example, we use only one UPS, an APC Symmetra Power Array. It has an
electrical output of 16.0 kVA. Our cluster requires an overall electrical input of
8.0 kVA. For example, in Table 7 on page 13 you can see that a Symmetra with
10 batteries has a run time of 53 minutes. The run time is dependent on the
number of installed batteries and the load.
Figure 23. Single UPS cabling diagram
All power supplies of each Netfinity server are connected to the APC Symmetra
Power Array, as well as the power supplies of the RAID controller, the enclosures,
and the hubs. One server is connected to the UPS via a black serial cable
(940-0024C). The second server is connected to the UPS Interface Expander
Card via a grey serial cable (940-0020B).
The left node is named NF8500L, the right node NF8500R.
3.2.3 Preparing both nodes
To implement our solution, additional files are necessary, as described below.
The configuration of PowerChute PLUS is shown in 3.2.4, “Installing PowerChute
APC Symmetra Power Array UPS
IBM Netfinity EXP Storage
Expansion Unit
IBM Netfinity EXP Storage
Expansion Unit
IBM Netfinity EXP Storage
Expansion Unit
IBM Netfinity EXP Storage
Expansion Unit
IBM Netfinity EXP Storage
Expansion Unit
COM
Network
QLogic HBA
IBM Netfinity
8500R
COM
FC HUB FC HUB
IBM Netfinity Fibre Channel
RAID Controller
IBM Netfinity EXP Storage
Expansion Unit
IBM Netfinity
8500R
QLogic HBA
Network
QLogic HBA
QLogic HBA
Communications - Smart-signaling cable
Communications - Smart-signaling cable