Battery Assemblies; Configuration Rules For Power Features; Required Quantity Of Battery Assemblies (Feature 1050) For Expansion Models. The I/O Enclosure Feature Is 1301 And The Extended Pld Feature Is 1055 - IBM DS8800 Introduction And Planning Manual

Battery assemblies

For any model that includes an I/O enclosure feature or an extended power line
disturbance feature, you must order battery assembly features for it. rack power
system includes the DC-UPS (direct current uninterruptible power supply) with
integrated batteries. Other members of the DS8000 series have used PPS (primary
power supply) batteries.
This feature provides a battery assembly to protect data during a loss of external
power. If a complete loss of input ac power occurs, the battery assemblies allow
the contents of NVS memory to be written to a number of DDMs internal to the
processor complex before power is off. The extended power line disturbance
(ePLD) option (feature code 1055) is designed to protect your storage unit for 50
seconds, rather than only milliseconds, from a power line disturbance.
The DC-UPS meets new Energy Star requirements for power monitoring and
reporting.
Feature codes for battery assemblies
Use this feature code to order battery assemblies for your base or expansion
model.
The following feature codes applies to all models.
1050

Configuration rules for power features

Ensure that you are familiar with the configuration rules and feature codes before
you order power features.
When you order power cord features, the following rules apply:
v You must order a minimum of one power cord feature for each model. Each
v You must select the power cord that is appropriate to the geographic region
For battery assemblies, the following rules apply:
v You must order battery assemblies (feature 1050) for each model that contains an
v No minimum order is required for the 95E expansion model, unless the
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Introduction and Planning Guide
Battery assembly
feature code represents a pair of power cords (two cords).
where the storage unit is located.
I/O enclosure feature (feature 1301) or an extended PLD feature (feature 1055).
expansion model contains an I/O enclosure feature or an extended PLD feature.
If either of these features is installed, you must order a battery assembly (feature
1055) to power the system when the external power system is lost. Table 36
provides the required quantity of battery assemblies that you must order.
Table 36. Required quantity of battery assemblies (feature 1050) for expansion models. The
I/O enclosure feature is 1301 and the extended PLD feature is 1055.
Model 95E with Model 95E without
feature codes 1055 feature codes 1055 or
and 1301 1301
2
Model 95E with
feature code 1055
0 2
Model 95E with
feature code 1301
2