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About Your System
Introduction
The MD3400 and MD3420 Series storage array is designed for high availability, offering redundant access
to data storage. Its features support both single and dual RAID controller configurations.
The Dell PowerVault MD3400 and MD 3420 Series storage array provides 12 Gbps SAS connectivity to the
host server. It enables access for up to eight non-redundant servers or four redundant servers.
The MD3400 and MD3420 Series storage array includes a number of components. These components
are:
• RAID controller module(s)
• PSU/fan modules
• Disk drives (also called physical disks/hard drives in this document)
• A front bezel (optional)
• A system enclosure, into which the other components are plugged
Front-Panel Features and Indicators
Figure 1. Front-Panel Features and Indicators—Dell PowerVault MD3400
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