Back-Panel Features And Indicators; Shutting Down And Restarting An Array - Dell EqualLogic PS4110 Hardware Owner's Manual

Hardware Owner's Manual

Back-Panel Features and Indicators

The back of a PS4110 is shown in
Table 2 describes the back panel features.
Item Feature
1 Power switch
Power supply unit
2
(PSU)
3
Control Module
Control Module
4
Release Lever

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:
Figure 5.
Figure 5: Back Panel-Features
Table 2: Array Back Panel Features
Identifier Description
The power switch controls the power supply output to the
None
array. One on each power supply.
PSU0 (left) Power supply and cooling fan module for array.
PSU1 (right) For more information, see
The control module provides:
CM0 (top)
•
CM1 (bottom)
•
None Enables you to remove the control module from the array.
1 Basic Storage Array Information
Power Supply LEDs on page
a data path between the array and the applications using
the storage
array management functions for your array
33.
5