Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, OpenManage, PowerEdge, and PowerVault are
trademarks of Dell Inc.
Other trademarks and trade names may be used in this document to refer to either the entities claiming
the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and
trade names other than its own.
Regulatory Model: E03J Series and E04J Series
Regulatory Type: E03J001 and E04J001
Figure 1-1. Front-Panel Features and Indicators—Dell™ PowerVault™ MD1200
Figure 1-2. Front-Panel Features and Indicators—Dell PowerVault MD1220
About Your Enclosure7
ItemIndicator, Button, or
Connector
1Enclosure status LEDThe enclosure status LED lights when
2Power LEDThe power LED lights when at least one
3Split mode LEDThe split mode LED lights when
4System identification
button
IconDescription
the enclosure power is on.
Lights blue during normal operation and
when the host server is identifying
the enclosure.
Blinks blue when a host server is
identifying the enclosure or when the
system identification button is pressed.
Lights amber when the enclosure is
turned on or is reset.
Blinks amber when the enclosure is in
the fault state.
power supply is supplying power to
the enclosure.
the enclosure is in a split-mode
configuration.
If the LED is not lit, it indicates that
the enclosure is in a unified-mode
configuration.
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 the EMM blinks blue until the
button is pushed again.
8About Your Enclosure
ItemIndicator, Button, or
1
2
3
Connector
5Hard drivesPowerVault MD1200—Up to 12 3.5-inch
6Enclosure mode
switch
IconDescription
SAS hot-swappable hard drives.
PowerVault MD1220—Up to 24 2.5-inch
SAS hot-swappable hard drives.
When set in the top position, the
enclosure is configured in unified mode.
When set in the bottom position, the
enclosure is configured in split mode.
Front-Bezel Features and Indicators
Figure 1-3. Front-Bezel Features and Indicators
About Your Enclosure9
ItemIndicator, Button, or
Connector
1Enclosure status LEDThe enclosure status LED lights when
2Power LEDThe power LED lights when at least one
3Split mode LEDThe split mode LED lights when
IconDescription
the enclosure power is on.
Lights blue during normal operation and
when the host server is identifying
the enclosure.
Blinks blue when a host server is
identifying the enclosure or when the
system identification button is pressed.
Lights amber when the enclosure is
turned on or is reset.
Blinks amber when the enclosure is in
the fault state.
power supply is supplying power to
the enclosure.
the enclosure is in a split-mode
configuration.
If the LED is not lit, it indicates that
the enclosure is in a unified-mode
configuration.
10About Your Enclosure
Hard-Drive Indicator Patterns
1
2
Figure 1-4. Hard Drive Indicators
1 hard-drive activity indicator (green)2hard-drive status indicator (green
Blinks green two times per secondIdentify drive/preparing for removal
OffDrive ready for insertion or removal
and amber)
NOTE: The drive status indicator remains
off until all hard drives are initialized after
system power is turned on. Drives are not
ready for insertion or removal during this
time. The Dell PowerEdge™ RAID controller
PERC H800 may take up to a minute to
discover and initialize all the hard drives.
Blinks green, amber, and offDrive predicted failure
Blinks amber four times per secondDrive failed
Blinks green slowlyDrive rebuilding
Steady greenDrive online
Blinks green three seconds, amber
three seconds, and off six seconds.
Rebuild aborted
Back-Panel Features and Indicators
Figure 1-5. Back-Panel Features and Indicators
Item Indicator, Button, or
Connector
1Power supply/cooling
fan module
2Primary enclosure
management module
(EMM)
3Secondary EMMEMM 1
IconDescription
PS 1600 W power supply.
EMM 0The EMM provides:
12About Your Enclosure
For more information, see "Power Indicator
Codes" on page 17.
• a data path between the enclosure and the
host server.
• enclosure management functions for your
enclosure.
Item Indicator, Button, or
Connector
4Power switches (2)The power switch controls the power supply
5Power supply/cooling
fan module
IconDescription
output to the enclosure.
PS 2600 W power supply.
For more information, see "Power Indicator
Codes" on page 17.
Enclosure Management Module
Each EMM provides the following data path and enclosure management
functions for your enclosure:
•Monitoring and controlling enclosure environment elements such as
temperature, fan, power supplies, and enclosure LEDs.
•Controlling access to hard drives.
•Communicating enclosure attributes and states to the host server.
NOTE: At least one EMM must be installed in the enclosure. If only one EMM is
installed in the enclosure, it must be installed in the primary EMM bay and a blank
must be installed in the secondary EMM bay. See "Installing an EMM Blank" on
page 36.
About Your Enclosure13
Figure 1-6. Enclosure Management Module
1234567
ItemIndicator, Button, or
Connector
1System status
indicator
2Debug portFor engineering use only.
3SAS port (In)INProvides SAS connections for cabling the
4In port link statusLights green when all the links to the
5SAS port (Out)OUTProvides SAS connections for cabling to
IconDescription
Blinks blue when the system
identification button is pushed. You can
identify a particular enclosure in a rack
using the system identification indicator.
host or an upchain expansion enclosure
(unified mode only).
port are connected.
Lights amber when one or more links to
the port are not connected.
The LED remains off if enclosure is not
connected.
the next down chain expansion enclosure
in a daisy chain (unified mode only).
NOTE: The SAS port Out is disabled if the
enclosure is running in a split-mode
configuration.
14About Your Enclosure
ItemIndicator, Button, or
IconDescription
Connector
6Out port link statusLights green when all the links out of the
port are connected.
Lights amber when one or more links out
of the port are not connected.
The LED remains off if enclosure is not
connected.
7EMM status LEDLights green when the EMM is
functioning properly.
Lights amber when the enclosure does
not boot or is not properly configured.
*
Blinks green (On 250 ms
Off 250 ms)
when a firmware download is in progress.
**
Blinks green (On 1000 ms
Off 1000
ms) when a peer auto-update is in
progress.
Blinks amber (On 250 ms Off 250 ms
[two times]; Off 1000 ms) when the
enclosure is unable to communicate with
enclosure devices.
*
Blinks amber (On 250 ms
Off 250 ms
[four times]; Off 1000 ms) when a
firmware update fails.
Blinks amber (On 250 ms Off 250 ms
[five times]; Off 1000 ms) when the
firmware versions are different between
two EMMs in an enclosure.
*
indicates that the LED blinks fast.
**
indicates that the LED blinks slowly.
About Your Enclosure15
Enclosure Failover When Two EMMs are Installed
If two EMMs are installed, a certain degree of failover is offered. Control and
monitoring of the enclosure elements can be transferred from one EMM to
another in the event of an EMM failure. A failover occurs whenever
communication is lost between an EMM and its peer.
In the event of a peer EMM failure, the surviving EMM activates the amber
status LED of the failed EMM. The surviving EMM then takes over the
responsibility of enclosure management, which includes monitoring and
control of the audible alarm, enclosure LEDs, power supplies, and fans.
Failover does not include providing connectivity to the drives controlled by
the failed EMM. When a failed EMM is replaced, enclosure management
functions do not automatically return to the replaced EMM unless an
additional failure occurs that triggers another failover event. The new EMM
only restores the data path to the hard drives controlled by the failed EMM.
EMM Thermal Shutdown
If critical internal temperatures are reached, the enclosure shuts down
automatically through either a thermal shutdown command issued by the
EMM firmware or through a command from Dell™ OpenManage™ Server
Administrator.
Enclosure Alarms
An audible alarm is activated if any of the fault conditions listed below occur.
The alarm sounds continuously if:
•More than one fan has failed or a power supply/cooling fan module is not
installed.
•One or more temperature sensors are in critical range.
16About Your Enclosure
The alarm sounds every 10 seconds if:
1
2
3
•One power supply has failed.
•One cooling fan has failed.
•One or more temperature sensors are in warning range.
•One EMM has failed.
NOTE: The alarm is disabled by default. To enable the alarm, you must change the
default setting in Server Administrator. For more information, see the Server
Administrator documentation at support.dell.com/manuals.
Power Indicator Codes
Figure 1-7. Power Indicator Codes
ItemLED TypeIconDescription
1DC powerThe LED lights green when the DC
output voltage is within the limit.
If this LED is off, it indicates that the
DC output voltages are not within the
limit.
About Your Enclosure17
ItemLED TypeIconDescription
2Power supply/cooling
fan fault
3AC powerThe LED lights green when the AC
The LED lights amber when the DC
output voltage is not within the limit or
a fault with the fan is detected.
If this LED is off, it indicates that no
fault condition is present.
input voltage is within the limit.
If this LED is off, it indicates either
there is no power or the AC input voltage
is not within the limit.
Other Information You May Need
WARNING: See the safety and regulatory information that shipped with your
system. Warranty information may be included within this document or as a
separate document.
•The rack documentation included with your rack solution describes how to
install your system into a rack.
•The
•The OpenManage Server Administrator documentation provides
•The
•Any media that ships with your system that provides documentation and
Getting Started Guide
provides an overview of system features, setting
up your system, and technical specifications.
information about managing your storage solution using the storage
management service within the server administrator.
Dell PowerEdge RAID Controller (PERC) H700 and H800 User’s
provides information about configuring RAID.
Guide
tools for configuring and managing your system, including those
pertaining to the operating system, system management software, system
updates, and system components that you purchased with your system.
NOTE: Always check for updates on support.dell.com/manuals and read the
updates first because they often supersede information in other documents.
18About Your Enclosure
Operating Your Storage Enclosure
Before You Begin
Before connecting your storage enclosure, ensure that the following are
available:
•Power cables
•SAS cables
•Rail kit
Dell Systems Management Tools and Documentation
•
•Documentation
–Getting Started Guide
–Rack Installation Instructions
–Safety instructions
Cabling Your Enclosure
You can cable your enclosure in either a unified-mode configuration or in a
split-mode configuration.
•In a unified-mode configuration your
for example, a server with a controller card. Your
up to four enclosures daisy-chained to a single port on the controller card
in your host server. The enclosure can also be connected in a redundant
path mode with two connections to single host server. See Figure 2-2 and
Figure 2-3 for cabling diagrams of a unified mode configuration.
•In a split-mode configuration, your enclosure is connected to two separate
controller cards. The controller cards may reside in the same server or in
two different servers. The enclosure bus is logically split in half where the
first half of the enclosure is managed by one controller and the second half
of the enclosure is managed by the second controller. Table 2-1 lists the
enclosure
media
is connected to one host,
enclosure
can be one of
Operating Your Storage Enclosure19
drives that are controlled by each enclosure management module (EMM)
in a split-mode configuration. See Figure 2-4 for a cabling diagram of a
split-mode configuration.
Table 2-1. Split-Mode Configuration
EnclosureEMM 0EMM 1
Dell PowerVault MD1200 Drives 6 to 11Drives 0 to 5
Dell PowerVault MD1220 Drives 12 to 23Drives 0 to 11
NOTE: Clustering is not supported on PowerVault MD1200 and
PowerVault M1220 enclosures.
The operating mode is selected using the enclosure mode switch on the front
panel of the enclosure.
NOTE: The enclosure mode switch must be set to either unified mode or split mode
before the enclosure is turned on. Changing the configuration mode after turning on
the enclosure has no effect on the enclosure configuration until the enclosure
is rebooted.
Connecting the Enclosure
1
Ensure that the latest version of Dell OpenManage™ Server Administrator
is installed. For installation instructions and supported operating systems,
see the Server Administrator documentation.
NOTE: The minimum version of Server Administrator supported on your
enclosure is 6.2.
2
Turn off the host system and all attached devices.
3
Connect the SAS cable(s) to the EMM SAS connector on the storage
enclosure
and to the RAID controller on the host system. Push the cable
into the connector until it clicks into place. See Figure 2-1.
NOTE: Connectors on both ends of the SAS cable are universally keyed. You
can connect either end of the cable to the EMM or the RAID controller.
NOTE: To remove the SAS cable, you must pull the pull-tab to release the
cable from the connector on the EMM and the host system. See Figure 2-1.
20Operating Your Storage Enclosure
Figure 2-1. Connecting a SAS Cable
12
1SAS cable2pull-tab
NOTE: In a unified-mode configuration, connect the host to the first EMM
module (EMM 0). See Figure 2-2. For unified-mode configurations utilizing
redundant paths, connect the host to the second EMM module (EMM1). See
Figure 2-3.
See your RAID controller documentation to ensure that the controller is
properly installed.
•If you are configuring your enclosure in a unified-mode configuration,
connect the SAS cable from the host controller to the In port on the
EMM module of the first
Attach subsequent storage
port on the first upchain storage
enclosure
enclosure
enclosure
in the daisy chain. See Figure 2-2.
s in the daisy chain to the Out
.
•If you are configuring your enclosure in a split-mode configuration,
attach the SAS cable from the first host controller to the In port on
the primary EMM module and the SAS cable from the second host
controller port to the In port on the secondary EMM. See Figure 2-4.
NOTE: In a split-mode configuration, you can cable the enclosure to operate
in either a two-host or single-host configuration.
Operating Your Storage Enclosure21
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