Owners Manual

PS4210 Hardware Owner's Manual
1 Basic Storage Array Information
Back-Panel Features and Indicators
The back of a PS4210 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
switch on each power supply.
2
Power supply unit
(PSU)
PSU0 (left)
PSU1 (right)
Power supply and cooling fan module for array.
3 Control module
CM0 (top)
CM1 (bottom)
The control module provides:
• Connection to 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, 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