Owners Manual

Table 1. Front-Panel Features and Indicators (continued)

Item Indicator, Button, or Connector Description

Blinks amber when the enclosure is either in a fault state or

the hosts are not using the preferred path to a virtual disk. For

more information about diagnosing the issue, see Dell EMC

PowerVault MD 34XX/38XX Series Storage Arrays

Administrator's Guide.

2 Power LED The power LED lights green when at least one power supply is

supplying power to the enclosure.

3 Split mode LED This LED must be unlit as the split mode function is not

supported by the MD3800i Series Storage Arrays.

4 System identification button The system identification button on the front control panel can

be used to locate a particular enclosure within a rack. When

the button is pushed, the system status indicators on the

control panel and one or more RAID controller modules blink

blue until the button is pushed again.

5 Hard drives MD3800i —Up to 12 3.5-inch SAS hot-swappable hard drives.

MD3820i —Up to 24 2.5-inch SAS hot-swappable hard drives.

6 Enclosure mode switch The function of this switch is not applicable to your storage

array. However, if MD1200 Series expansion enclosures are

daisy chained to the storage array, the enclosure mode

switches of the MD1200 Series expansion enclosures must be

set to the Unified-Mode position.

NOTE: This switch must be set before turning on the

MD1200 Series expansion enclosure. Changing the switch

setting after the expansion enclosure is turned on has no

effect on the enclosure configuration until the expansion

enclosure goes through a complete power cycle.

Back-Panel Features and Indicators

Figure 4. Back-Panel Features and Indicators—Dell PowerVault MD3800i and MD3820i Series

600 W power supply/cooling fan 2. RAID Controller Module 0

3. RAID Controller Module 1 4. 600 W power supply/cooling fan

About Your System 7