Dell PS4110, Hardware Owner'S Manual

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Hardware Owner's Manual 1 Basic Storage Array Information
Back-Panel Features and Indicators
The back of a PS4110 is shown in Figure 5 .
Table 2 describes the back panel features.
Figure 5: Back Panel-Features
Table 2: Array Back Panel Features
Item Feature Identifier Description
1 Power switch None
The power switch controls the power supply output to the
array. One on each power supply.
2
Power supply unit
(PSU)
PSU0 (left)
PSU1 (right)
Power supply and cooling fan module for array.
For more information, see Power Supply LEDs on page 33 .
3
Control Module
CM0 (top)
CM1 (bottom)
The control module provides:
• a data path between the array and the applications using
the storage
• array management functions for your array
4
Control Module
Release Lever
None Enables you to remove the control module from the array.
Shutting Down and Restarting an Array
A PS Series array includes redundant, hot-swappable drives, power supplies, and control modules (in a dual
control module array). You can remove a redundant component without affecting operation if a functioning
component is available. Otherwise, it is recommended that you cleanly shut down the array and turn off power
before removing a component.
Note: When an array is shut down, any volumes with data on the array will be set offline until the array is
successfully restarted. This may affect initiators that are connected to the volumes.
1. Do one of the following:
5