IBM DS8700, Введение и руководство по планированию

Страница: 182 / 256

3. When the IBM service representative arrives to install the Earthquake
Resistance Kit, provide the other fastener parts (
2
in Figure 26 on page 158)
so that the representative can use these parts secure the load plates onto the
floor.
Planning for power requirements
You must select a DS8000 storage complex location that meets specific power
requirements.
When you consider the DS8000 storage complex location, consider the following
issues:
v Power control selections
v
Power outlet requirements
v Input voltage requirements
v
Power connector requirements
v Remote force power off switch requirements
v
Power consumption and environment
IBM cannot install the DS8000 series model if your site does not meet these power
requirements.
Overview of DS8000 power controls
The DS8000 series provides power controls on the model racks. Power controls can
be configured by an IBM service support representative. Power controls can also be
accessed through the Management Console.
The DS8000 models have these following manual power controls in the form of
physical switches on the racks:
v Local/remote switch
(Available on base models) The local/remote switch setting determines your use
of local or remote power controls. When you set the switch to local, the local
power on/local force power off switch controls power in the storage unit. You
can access this switch by opening the rear cover of the unit. When the
local/remote switch is set to remote, the power for the storage unit is controlled
by remote power control settings that are entered in the DS Storage Manager.
Planning requirements: None.
v
Local power on/local force power off switch
(Available on base models) The local power on/local force power off switch
initiates a storage unit power on sequence or a storage unit force power off
sequence. This switch is applicable only when the local/remote switch is set to
local. You can access this switch by opening the rear cover of the unit.
Planning
requirements: None.
Note: To activate this switch, press and hold it for 8 seconds.
v
Unit emergency power off switch
(Available on all models) Use this switch only in extreme emergencies. Using this
switch often results in data loss. If activated, the unit emergency power off (UEPO)
switch causes the individual model rack to immediately drop all power,
including any power that is provided by the battery system. When active, this
switch overrides all other power controls for the specific rack. This switch is
located behind the covers of each model.
Planning requirements: None.
160
Introduction and Planning Guide