Back-Panel Features And Indicators; Shutting Down And Restarting An Array - Dell EqualLogic PS4210 Hardware Owner's Manual

PS4210 Hardware Owner's Manual

Back-Panel Features and Indicators

The back of a PS4210 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, Dell recommends that you cleanly shut down the array and turn off power
before removing a component.
When an array is shut down, any volumes with data on the array will be set offline until the array is successfully
restarted. Being offline affects initiators that are connected to the volumes.
Array shutdown procedure
1. Connect to the array in one of the following ways:
4
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 array. One
None
switch on each power supply.
PSU0 (left)
Power supply and cooling fan module for array.
PSU1 (right)
The control module provides:
CM0 (top)
•
CM1 (bottom)
•
Enables you to remove the control module from the array.
None
Connection to a data path between the array and the applications
using the storage
Array management functions for your array
1 Basic Storage Array Information