Dell Storage MD1400 Enclosures
Hardware Owner's Manual
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright © 2014 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and
intellectual property laws. Dell™ and the Dell logo are trademarks of Dell Inc. in the United States and/or other
jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.
2014 - 09
Rev. A00
Contents
1 About your enclosure........................................................................................... 5
Front-panel features and indicators..................................................................................................... 5
Front-bezel features and indicators..................................................................................................... 6
Hard disk drive indicator patterns......................................................................................................... 7
Back-panel features and indicators......................................................................................................8
Enclosure Management Module...........................................................................................................8
Enclosure failover when two EMMs are installed...........................................................................9
EMM thermal shutdown.................................................................................................................. 9
Power indicator codes........................................................................................................................ 10
Other information you may need.......................................................................................................10
2 Installing enclosure components.................................................................... 12
Recommended tools...........................................................................................................................12
Front bezel (optional).......................................................................................................................... 12
Removing the front bezel..............................................................................................................12
Installing the front bezel................................................................................................................13
Hard disk drives....................................................................................................................................13
Safety: Models AMT, E03J, and E04J............................................................................................13
Removing a hard disk drive blank................................................................................................. 13
Installing a hard disk drive blank................................................................................................... 14
Removing a hard disk drive........................................................................................................... 14
Installing a hard disk drive............................................................................................................. 15
Removing a hard disk drive from a hard disk drive carrier...........................................................15
Installing a hard disk drive into a hard disk drive carrier.............................................................. 16
Enclosure Management Module ........................................................................................................16
Removing an EMM blank............................................................................................................... 17
Installing an EMM blank................................................................................................................. 17
Removing an EMM......................................................................................................................... 17
Installing an EMM...........................................................................................................................18
AC power supply unit or cooling fan module.................................................................................... 19
Removing an AC power supply unit or cooling fan module....................................................... 19
Installing an AC power supply unit or cooling fan module.........................................................20
About DC power supply units............................................................................................................ 20
Power indicator codes.................................................................................................................. 20
DC power supply module back panel features............................................................................22
Removing and installing the DC power supply unit.....................................................................22
Control panel...................................................................................................................................... 28
Removing the control panel......................................................................................................... 28
Installing the control panel........................................................................................................... 29
Backplane............................................................................................................................................ 29
Removing the backplane.............................................................................................................. 29
Installing the backplane.................................................................................................................31
3 Troubleshooting your enclosure..................................................................... 32
Safety first—for you and your enclosure............................................................................................32
Troubleshooting enclosure startup failure.........................................................................................32
Troubleshooting loss of communication...........................................................................................32
Troubleshooting external connections..............................................................................................32
Troubleshooting power supply unit or cooling fan module............................................................. 32
Troubleshooting enclosure cooling problems.................................................................................. 33
Troubleshooting Enclosure Management Modules.......................................................................... 34
Troubleshooting hard disk drives....................................................................................................... 34
Troubleshooting enclosure connections...........................................................................................35
Troubleshooting a wet enclosure...................................................................................................... 35
Troubleshooting a damaged enclosure............................................................................................. 35
4 Getting help......................................................................................................... 37
Contacting Dell....................................................................................................................................37
Documentation feedback................................................................................................................... 37
About your enclosure
1
Front-panel features and indicators
Figure 1. Front-panel features and indicators
Item
Indicator,
Button, or
Connector
Icon
Description
1
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 pressed, the system status indicators on the
control panel and the EMM blink blue until the button is
pressed again.
2
Power LED
The power LED lights when at least one power supply unit is
supplying power to the enclosure.
3
Enclosure status
LED
The enclosure status LED glows when the enclosure power is
on.
Glows solid blue during normal operation.
Blinks blue when a host server is identifying the enclosure or
when the system identification button is pressed.
Blinks amber or remains solid amber for a few seconds and
then turns off when the EMMs are starting or resetting.
Blinks amber for an extended time when the enclosure is in a
warning state.
Remains solid amber when the enclosure is in the fault state.
4
Hard disk drives
Up to 12 3.5-inch SAS hot-swappable hard disk drives.
5
Front-bezel features and indicators
Figure 2. Front-bezel features and indicators
Item
Indicator, Button, or
Connector
1
Enclosure status LED
Icon
Description
The enclosure status LED lights when the enclosure
power is on.
Lights solid blue during normal operation.
Blinks blue when a host server is identifying the
enclosure or when the system identification button is
pressed.
Blinks amber or remains solid amber for a few seconds
and then turns off when the EMMs are booting or
resetting.
Blinks amber for an extended time when the enclosure
is in a warning state.
Remains solid amber when the enclosure is in the fault
state.
2
Power LED
The power LED lights when at least one power supply
unit (PSU) is supplying power to the enclosure.
3
Latch
The latch is used to remove the bezel from the
enclosure.
6
Hard disk drive indicator patterns
Figure 3. Hard disk drive indicators
1.
hard disk drive activity indicator (green)
3.
hard disk drive
2.
hard disk drive status indicator (green and
amber)
Hard disk drive- status indicator pattern (RAID
Only)
Condition
Blinks green two times per second
Identify hard disk drive or preparing for removal
Off
Hard disk drive ready for insertion or removal
NOTE: The hard disk drive status indicator
remains off until all hard disk drives are
initialized after system power is turned on.
Hard disk drives are not ready for insertion or
removal during this time. The Dell PowerEdge
RAID controller PERC H830 and 12Gb SAS
HBA may take up to a minute to discover and
initialize all the hard disk drives.
Blinks green, amber, and off
Hard disk drive predicted failure
Blinks amber four times per second
Hard disk drive failed
Blinks green slowly
Hard disk drive rebuilding
Steady green
Hard disk drive online
7
Hard disk drive- status indicator pattern (RAID
Only)
Condition
Blinks green for three seconds, amber for three
seconds, and turns off in six seconds.
Rebuild aborted
Back-panel features and indicators
Figure 4. Back-panel features and indicators
Item
Indicator, Button, or Connector
Description
1
Power supply unit or cooling fan
module (PS1)
600 W power supply.
Primary enclosure management
module (EMM 0)
The EMM provides:
•
a data path between the enclosure and the host server.
3
Secondary EMM (EMM 1)
•
enclosure management functions for your enclosure.
4
Information tag
A slide-out label panel, which allows you to record Service
Tag.
5
Power switches (2)
The power switch controls the power supply output to the
enclosure.
6
Power supply unit or cooling fan
module (PS 2)
600 W power supply.
2
For more information, see Power indicator codes.
For more information, see Power indicator codes.
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 supply
units, and enclosure LEDs.
•
Controlling access to hard disk drives.
•
Communicating enclosure attributes and states to the host server.
8
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 .
Figure 5. Enclosure Management Module
Item
Indicator,
Button, or
Connector
Icon
Description
1,2,3,4
SAS port (Input or
Output)
Provides SAS connections for cabling the host or an upchain
expansion enclosure and to the next down chain expansion
enclosure in a daisy chain.(Single Port, Redundant, and Multichain Configuration)
5
USB Mini-B (serial
debug port)
For engineering use only.
6
7-Segment
Display
Display the enclosure location in SAS Chain.
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 network communication is ended 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 enclosure LEDs, power supply units, and fans.
EMM thermal shutdown
If critical internal temperatures are reached, the enclosure turns off automatically through either a
thermal shutdown command issued by the EMM firmware or through a command from Dell
OpenManage Server Administrator.
9
Power indicator codes
Figure 6. Power indicator codes
Item
LED
1
DC power
Icon
Color
State
Green
•
•
ON — Normal operation. Power supply is connected
to DC power and the power switch is on. The power
supply module is supplying DC power to the array.
OFF — Indicates any one of the following:
– The power switch is off.
– The power supply module is not connected to
power.
– There is a fault condition.
2
Power supply
module fault
Yellow
•
•
•
ON — Fault detected.
OFF — OK.
Blinks briefly when power is first turned on to the
power supply module.
3
AC power
Green
•
ON — Power supply module is connected to a
source of AC power irrespective of whether or not a
power switch is on.
OFF — Power supply module is completely
disconnected from any source of AC power.
•
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 Getting Started Guide provides an overview of system features, setting up your system, and
technical specifications.
10
•
The OpenManage Server Administrator documentation provides information about managing your
storage solution using the storage management service within the server administrator.
•
The Dell PowerEdge RAID Controller (PERC) H830 and Dell 12Gb SAS HBA User’s Guide provides
information about configuring RAID.
•
Any media that ships with your system that provides documentation and 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 dell.com/support/manuals and read the updates first because
they often supersede information in other documents.
11
Installing enclosure components
Recommended tools
You may need the following items to perform the procedures in this section:
•
Key to the system keylock
•
#2 Phillips screwdriver
•
Wrist grounding strap
Front bezel (optional)
Removing the front bezel
1.
Using the system key, unlock the front bezel (if locked).
2.
Lift the release latch next to the keylock.
3.
Pull the left end of the bezel away from the front panel.
4.
Unhook the right end of the bezel and pull the bezel away from the system.
Figure 7. Removing and installing the front bezel
1.
12
keylock
2.
front bezel
2
Installing the front bezel
1.
Hook the right end of the bezel onto the chassis.
2.
Fit the free end of the bezel onto the system.
3.
Secure the bezel with the keylock.
Hard disk drives
Safety: Models AMT, E03J, and E04J
Models AMT, E03J, and E04J are intended for installation only in restricted access locations as defined in
cl 1.2.7.3 of IEC 60950-1:2005.
On the basis of your configuration, your enclosure either supports up to up to 12 3.5-inch SAS hard disk
drives in internal drive bays. Hard disk drives are connected to a backplane using hard disk drive carriers
and are configured as hot-swappable.
CAUTION: Do not turn off or reboot your enclosure while the hard disk drive is being formatted.
Doing so can cause a hard disk drive to fail.
When you format a hard disk drive, allow enough time for the formatting to complete. High-capacity
hard disk drives can take many hours to format.
Removing a hard disk drive blank
CAUTION: To maintain proper system cooling, make sure all empty hard disk drive bays have
blanks installed.
1.
If installed, remove the front bezel. See Removing the front bezel.
2.
Press the release tab and pull the hard disk drive blank out until it is free of the hard disk drive bay.
13
Figure 8. Removing and installing a 3.5-inch hard disk drive blank
1.
hard disk drive blank
2.
release tab
Installing a hard disk drive blank
1.
If installed, remove the front bezel. See Removing the front bezel.
2.
Insert the hard disk drive blank into the hard disk drive bay until the blank is fully seated.
3.
Close the handle to lock the blank in place.
4.
If applicable, install the front bezel. See Installing the front bezel.
Removing a hard disk drive
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1.
If installed, remove the front bezel. See Removing the front bezel.
2.
From the management software, prepare the hard disk drive for removal. Wait until the hard disk
drive indicators on the hard disk drive carrier indicates that the drive can be removed safely. See your
controller documentation for information about removing hot-swapable hard disk drive.
If the hard disk drive has been online, the green activity or fault indicator flashes as the hard disk drive
is turned off . When the drive indicators are off, the hard disk drive is ready for removal. See Hard disk
drive indicator patterns.
3.
Press the release button to open the hard disk drive carrier release handle.
4.
Pull the hard disk drive out until it is free of the hard disk drive bay. See Installing a hard disk drive
blank.
CAUTION: To maintain proper system cooling, make sure all empty hard disk drive bays have
blanks installed.
5.
Insert a hard disk drive blank in the empty drive bay. See Installing a drive blank.
6.
If applicable, install the front bezel. See Installing the front bezel.
14
Figure 9. Removing and installing a hard disk drive
1.
release button
3.
hard disk drive carrier handle
2.
hard disk drive
Installing a hard disk drive
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: Use only hard disk drives that have been tested and approved for use with the SAS
backplane.
CAUTION: When installing a hard disk drive, ensure that the adjacent hard disk drives are fully
installed. Inserting a hard disk drive carrier and attempting to lock its handle next to a partially
installed carrier can damage the partially installed carrier's shield spring and make it unusable.
1.
If applicable, remove the front bezel. See Removing the front bezel.
2.
If applicable, remove the hard disk drive blank from the bay. See Removing a hard disk drive blank.
3.
Press the release button to open the hard disk drive carrier release handle.
4.
Insert the hard disk drive carrier into the hard disk drive bay until the carrier connects the backplane.
5.
Close the handle to lock the hard disk drive in place.
Removing a hard disk drive from a hard disk drive carrier
1.
Remove the four screws from the slide rails on the hard disk drive carrier.
2.
Lift the hard disk drive out of the hard disk drive carrier.
Remove the screws from the slide rails on the hard disk drive carrier and separate the hard disk drive from
the carrier.
15
Figure 10. Removing and installing a hard drive into a 3.5-inch hard disk drive carrier
1.
screws (4)
3.
hard disk drive carrier
2.
hard disk drive
Installing a hard disk drive into a hard disk drive carrier
1.
Insert the hard disk drive into the hard disk drive carrier with the connector end of the hard disk drive
at the back.
2.
Align the screw holes on the hard disk drive with the back set of holes on the hard disk drive carrier.
When aligned correctly, the back of the hard disk drive is flush with the back of the hard disk drive
carrier.
3.
Install and tighten the four screws to secure the hard disk drive to the hard disk drive carrier.
Enclosure Management Module
An enclosure with redundant enclosure management contains two enclosure management modules
(EMM). You can cable your enclosure either in a single port, redundant mode or in a multi-mode
configuration. If only one EMM is installed in your enclosure, it must be installed in EMM 0. You must
install the EMM blank in EMM 1.
NOTE: EMMs can be removed and installed without turning off the enclosure.
CAUTION: It is recommended that you do not remove an EMM while data is being transferred.
CAUTION: Replacing or installing an EMM that is connected to a host server causes it to end
communication with the enclosure and requires a restart of the host server.
16
Removing an EMM blank
CAUTION: To maintain proper system cooling, make sure you install an EMM blank in the empty
slot.
1.
Remove EMM 0. See Removing an EMM blank.
2.
To remove the EMM blank, press down on the release latch and pull the blank away from the
enclosure.
Figure 11. Removing and installing an EMM blank
1.
EMM blank
2.
release latch
Installing an EMM blank
To install an EMM blank, align the blank with the EMM bay and insert the blank into the chassis until it
clicks into place.
Removing an EMM
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1.
Disconnect the SAS cables connected to the EMM.
2.
Push down on the release tab and pull the release lever away from the chassis.
3.
Hold the release lever and pull the module away from the chassis.
17
NOTE: Stacking the EMM will damage the sensitive EMI contacts
Figure 12. Removing and installing an EMM
1.
release lever
3.
release tab
2.
EMM
Installing an EMM
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1.
Insert and seat the EMM into the EMM bay.
2.
Push the release lever toward the chassis until it clicks into place.
3.
Connect all the SAS cables to the EMM.
4.
For information about the latest firmware, see the Dell Support website at dell.com/support
5.
If applicable, update the firmware of the EMM.
NOTE: If two EMMs are installed in the enclosure, you must ensure that both the EMMs have the
same firmware version installed. You can verify if both the enclosures use the same firmware version
by checking the LEDs on the enclosure or by using Server Administrator.
For more information about EMM connections and cabling, see Dell Storage MD1400 and MD 1420
Enclosure Hardware Deployment Guide.
18
AC power supply unit or cooling fan module
Your enclosure supports two hot-swappable power supply unit or cooling fan modules. While the
enclosure can operate temporarily with one module, both the modules must be present for cooling the
enclosure.
CAUTION: A single power supply unit or cooling fan module can be removed from a turned on
enclosure for a maximum period of five minutes. Beyond that time, the enclosure may
automatically shut down to prevent damage.
Removing an AC power supply unit or cooling fan module
NOTE: If you remove a fully functioning power supply or cooling fan module, the fan speed in the
remaining module increases significantly to provide adequate cooling. The fan speed decreases
gradually when a new power supply or cooling fan module is installed.
1.
Turn off the power supply unit or cooling fan module.
2.
Disconnect the power cable from the power source.
3.
Remove the Velcro straps that secure the power cable and then disconnect the power cable from
the power supply or cooling fan module.
WARNING: The power supply unit or cooling fan modules are heavy. Use both hands while
removing the module.
4.
Press the release tab and pull the power supply out of the chassis.
Figure 13. Removing and installing a power supply unit or cooling fan module
1.
release tab
3.
EMM or Power Supply Cage
2.
power supply unit
19
Installing an AC power supply unit or cooling fan module
1.
Slide the power supply unit or cooling fan module into the chassis until the release tab clicks into
place.
2.
Connect the power cable to the power supply unit or cooling fan module and plug the cable into a
power outlet.
3.
Secure the power cable using the Velcro strap.
Figure 14. Securing the power cable
1.
Velcro strap
CAUTION: When connecting the power cable, secure the cable with the Velcro strap.
NOTE: If the enclosure is powered on, all the power supply LEDs remain off until the AC power
cable is connected to the power supply unit or cooling fan module and the power switch is
turned on.
4.
Turn on the power supply unit or cooling fan module.
About DC power supply units
An MD Series storage array receives its power from two power supply modules. In a DC-powered MD
Series storage array, the power supply module receives power from two 48 V DC PSUs. Each power
supply module has two cooling fans.
NOTE: The fans that keep the array cool are integrated into the power supply modules and cannot
be replaced separately. If a fan stops functioning, you must replace the entire power supply module.
Power indicator codes
The DC power supply module has LEDs that indicate power supply status. Under normal conditions, the
power output and line input LEDs are lit at the same time.
20
Figure 15. Power indicator codes
Item
LED
Color
State
1
Power
output
Green •
•
ON — Normal operation. Power supply is connected to DC power and
the power switch is on. The power supply module is supplying DC
power to the array.
OFF — Indicates any one of the following:
– The power switch is off.
– The power supply module is not connected to power.
– There is a fault condition.
2
Power
supply
module
fault
Yellow •
•
•
ON — Fault detected.
OFF — OK.
Blinks briefly when power is first turned on to the power supply
module.
3
Line input
Green •
ON — Power supply module is connected to a source of DC power
whether or not the power switch is on.
OFF — Power supply module is completely disconnected from any
source of DC power.
•
21
DC power supply module back panel features
Figure 16. DC power supply module back panel features
Item
Feature
Description
1
Power supply release
lever
Unlocks the power supply module for removal from the storage array.
2
Connector on the
Connects the power supply module to the DC power supply module.
power supply module
3
Power supply On or
Off switch
4
Protective safety earth Provides grounding for the power supply module. It must be
ground
connected to the building's protective safety earth ground.
Controls the power supply module power output to the storage array.
Removing and installing the DC power supply unit
Input Requirements
•
Supply voltage: –(48–60) V DC
•
Current consumption: 25 A (maximum)
Kit Contents
•
Molex # 394260002 at PSU end
•
Molex # 39422-0012 mating DC power connector
Required Tools
•
Hand-crimping tool (Tyco Electronics, 58433-3 or equivalent).
•
Wire-stripper pliers capable of removing insulation from size 10 AWG solid or stranded, insulated
copper wire.
NOTE: Use alpha wire part number 3080 or equivalent (65/30 stranding).
22
Required Wires
•
One UL 4 AWG, 2 m maximum (stranded) black wire [–(48–60) V DC]
•
One UL 4 AWG, 2 m maximum (stranded) red wire (V DC return)
•
One UL 4 AWG, 2 m maximum (stranded) green/yellow/green with a yellow stripe wire (safety ground)
Assembling and connecting the safety ground wire
WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must
perform all connections to DC power and to safety grounds. Do not attempt connecting to DC
power or installing grounds yourself. All electrical wiring must comply with applicable local or
national codes and practices. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow all safety instructions that came with the product.
NOTE: It is recommended that you use stranded copper wire type.
1.
Strip the insulation from the end of the green or yellow wire (safety ground wire), exposing
approximately 4.5 mm (0.175 inch) of copper wire.
2.
Using a hand-crimping tool, crimp the ring-tongue terminal to the green or yellow wire.
3.
Connect the safety ground wire to the grounding post on the back of the system using a #6/32 nut
equipped with a locking washer and tighten it firmly to the grounding post.
Figure 17. Assembling and connecting the safety ground wire
1.
2.
3.
4.
5.
#6/32 nut
spring washer
locking washer
safety ground wire terminal
grounding post
23
Wiring the power cables
WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must
perform all connections to DC power and to safety grounds. Do not attempt connecting to DC
power or installing grounds yourself. All electrical wiring must comply with applicable local or
national codes and practices. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow all safety instructions that came with the product.
The DC power supply module must be hard-wired to a DC power source in your environment by a
qualified electrician. To wire your DC power supply module to a DC power source:
1.
Make sure that the power switch is in the OFF position, and the power supply module is turned off.
2.
Connect the open terminal (bare wire ends) to an appropriate DC power source.
As specified in the following table:
•
Connect each wire on power cable to the matching wire or terminal on DC power source.
•
Each wire on the power cable is labeled with information for easy identification.
Figure 18. Dc power cable d-shell connector and terminals
Pin Description
Wire Color
Wire Size
1
48V DC Safety Ground (F or G)
Green or Yellow
10 AWG
2
–48V DC Return (+)
Blue
10 AWG
3
–48V DC (–)
Black
10 AWG
Connecting the power cable to the power supply module
1.
Make sure that the power switch is in the OFF mode before connecting the DC power cable.
2.
Connect the DC power supply cable to the power supply module by plugging the power cables into
the matching power supply module plug connector.
3.
Secure the power cables to the power supply module by fastening the power cables firmly to the
system using the attached (trapped) finger screws.
4.
Install the screws to the corresponding screw holes on the system and tighten until the power
connector is firmly held in place.
24
Figure 19. Connecting the dc power cables
1.
attached (trapped) finger screws
3.
connector on the power supply module
2.
connector on the power supply cable
Removing a DC power supply
WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must
perform all connections to DC power and to safety grounds. Do not attempt connecting to DC
power or installing grounds yourself .All electrical wiring must comply with applicable local or
national codes and practices. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow all safety instructions that came with the product.
CAUTION: The system requires one power supply for normal operation. On power-redundant
systems, remove and replace one power supply at a time when a system is turned on.
NOTE: You must unlatch and lift the optional cable management arm if it interferes with power
supply removal. For information about the cable management arm, see the system’s rack
documentation.
1.
Turn off the power switches on the power supply module.
2.
Remove the strap that secures the wires to the power supply module handle.
3.
Disconnect the power wires from the power source and the connector from the power supply
module you intend to remove.
4.
Disconnect the safety ground wire.
5.
Press the release latch and slide the power supply module out of the chassis.
CAUTION: The power supply module is heavy; support it with both hands.
25
Figure 20. Removing and installing a dc power supply module
1.
release latch
3.
power supply module handle
2.
power supply module
Installing a DC Power Supply Module
WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must
perform all connections to DC power and to safety grounds. Do not attempt connecting to DC
power or installing grounds yourself. All electrical wiring must comply with applicable local or
national codes and practices. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow all safety instructions that came with the product.
1.
Verify that both the power supply modules are the same type and have the same maximum output
power.
NOTE: The maximum output power (shown in Watt) is listed on the power supply module label.
2.
Slide the new power supply module into the chassis until the power supply module is fully seated
and the release latch snaps into place.
NOTE: If you unlatched the cable management arm, relatch the arm. For information about the
cable management arm, see the system’s rack documentation.
NOTE: Before the power cable is connected, the fans start spinning, powered by the other
power supply module.
3.
Ensure that the power switch is in the OFF mode.
4.
Connect the safety ground wire.
5.
Install the DC power connector in the power supply.
CAUTION: When connecting the power wires, secure the wires with the strap to the power
supply module handle.
6.
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Connect the wires to a DC power source.
NOTE: The line input LED lights up when the power cable is connected, even if the switches on
the power supply modules are off.
NOTE: When installing, hot-swapping, or hot-adding a new power supply, allow several
seconds for the system to recognize the power supply module and determine its status. The
power-supply status indicator turns green to indicate that the power supply module is
functioning properly.
Power Supply Module Failures
You can identify a power supply module failure by any or all of the following:
•
LEDs on the power supply modules.
•
Messages on the console, in the event log, or in Modular Disk Storage Manager.
NOTE: When viewing the rear of the array, power supply module 0 is on the left, and power supply
module 1 is on the right.
Troubleshooting a DC power supply
WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must
perform all connections to DC power and to safety grounds. Do not attempt connecting to DC
power or installing grounds yourself. All electrical wiring must comply with applicable local or
national codes and practices. Damage due to servicing that is not authorized by Dell is not
covered by your warranty. Read and follow all safety instructions that came with the product.
CAUTION: The system requires one power supply for normal operation. On power-redundant
systems, remove and replace one power supply module at a time when a system is turned on.
CAUTION: A single power supply module can be removed from a switched-on array for a
maximum of five minutes. Beyond that time, the array may automatically shut down to prevent
damage.
NOTE: In case a power supply module fails, make sure to leave the failed power supply module in
the enclosure till the replacement power supply module is available.
NOTE: You must unlatch and lift the optional cable management arm if it interferes with power
supply removal. For information about the cable management arm, see the system’s rack
documentation.
1.
Verify that the power switch is in the ON position.
2.
Locate the faulty power supply and determine the status of the LEDs.
If the line input LED is not lit, check the power cable and power source to which the power supply is
connected.
3.
•
Make sure that the power cable is securely attached to the power source and the power supply.
•
Connect another device to the power source to verify if it is working.
•
Connect the cable to a different power source.
• Replace the power cable.
Reseat the power supply by removing and reinstalling it.
For more information, see Removing a DC power supply and Installing a DC power supply.
If the problem is not resolved, see Getting Help.
27
Technical specifications
NOTE: The following specifications are only those required by law to ship with your system. For a
complete and current listing of the specifications for your system, go to dell.com/support.
Power
AC Power Supply (per power supply)
Watt
600 W
Heat dissipation
2047 BTU/hr (redundant, 600 W power supply)
NOTE: Heat dissipation is calculated
using the power supply wattage
rating.
Voltage
100–240 V AC, autoranging, 50/60 Hz
NOTE: This system is also designed
to be connected to IT power systems
with a phase to phase voltage not
exceeding 230 V.
DC Power Supply (per power supply)
Watt
700 W
Heat dissipation
2388 BTU/hr (redundant, 700 W power supply)
NOTE: Heat dissipation is calculated
using the power supply wattage
rating.
Voltage
–(48–60) V DC
Temperature
Maximum operation ambient temperature
35° C
For information about supported expanded operating temperature range and configurations, see
dell.com/support/manuals.
Control panel
Removing the control panel
1.
Turn off the enclosure and host server.
2.
Disconnect all the power cables connected to the enclosure.
3.
Remove the hard disk drives from slot 0 to 2. See Removing a hard disk drive.
4.
Slide the control panel out of the chassis after pushing the release tab toward the front of the
enclosure.
28
Figure 21. Removing and installing the control panel
1.
control panel
3.
release tab
2.
chassis
Installing the control panel
1.
Align the control panel with the slot on the enclosure.
2.
Slide the control panel into the enclosure until the release tab clicks into place.
3.
Install the hard disk drives in their respective slots. See Installing a hard disk drive.
4.
Connect all the power cables to the enclosure.
5.
Turn on the enclosure and the host server.
Backplane
WARNING: Whenever you need to lift the enclosure, get others to assist you. To avoid injury, do
not attempt to lift the enclosure by yourself.
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
Removing the backplane
1.
Turn off the enclosure and disconnect it from the electrical outlet.
2.
Disconnect all the cables connected to the enclosure.
29
3.
Remove the hard disk drives. See Removing a hard disk drive.
4.
Remove the EMMs. See Removing an EMM.
5.
Remove the power supply or cooling fan modules. See Removing an AC power supply unit or
cooling fan module.
6.
Remove the control panel. See Removing the control panel.
7.
Remove the screws that secure the EMM or power supply cage to the chassis.
8.
Hold the cage removal ring at the bottom center of the enclosure and pull the EMM or power supply
cage toward the back of the chassis.
Figure 22. Removing and installing the EMM or power supply cage
1.
9.
EMM or power supply cage
2.
screws (6)
Lift the EMM or power supply cage away from the chassis.
10. Loosen the captive screw that secures the backplane to the chassis.
11. Remove the screws that secure the backplane and pull the backplane out of the enclosure.
30
Figure 23. Removing and installing the backplane
1.
screws (5)
3.
backplane
2.
captive screws (2)
Installing the backplane
1.
Align the holes on the backplane with the holes on the enclosure.
2.
Tighten the captive screw to secure the backplane to the chassis.
3.
Replace the screws that secure the backplane to the chassis.
4.
Align the slots on the EMM or power supply cage with the tabs on the chassis.
5.
Push the EMM or power supply cage toward the front of the enclosure.
6.
Replace the screws that secure the EMM or power supply cage to the chassis.
7.
Install the control panel. See Installing the control panel.
8.
Install the power supply or cooling fan modules. See Installing an AC power supply unit or cooling
fan module.
9.
Install the hard disk drives. See Installing a hard disk drive.
10. Connect all the cables to the enclosure.
11. Turn on the enclosure and the host server.
31
Troubleshooting your enclosure
3
Safety first—for you and your enclosure
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
Troubleshooting enclosure startup failure
If your system stops functioning during startup, check if:
•
The enclosure fault LEDs are lit. See Enclosure Management Module.
•
A message is displayed on the screen. See the Dell OpenManage Server Administrator documentation.
•
There is a constant scraping or grinding sound when you access the hard disk drive. See Getting Help.
Troubleshooting loss of communication
For information about troubleshooting loss of communication, see Troubleshooting Enclosure
Management Modules.
Troubleshooting external connections
•
Verify that the cables are connected to the correct ports before troubleshooting any external devices.
For the location of the back-panel connectors on your enclosure, see Back-panel features and
indicators.
•
Ensure that all the cables are securely attached to the external connectors on your enclosure.
Troubleshooting power supply unit or cooling fan
module
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: It is recommended that you turn off the host server before turning off the enclosure to
prevent loss of data.
1.
32
Locate the faulty PSU and determine the status of LEDs.
•
If the AC power LED is not lit, check the power cord and power source into which the power
supply is plugged.
– Connect another device to the power source to verify if it is working.
– Connect the cable to a different power source.
– Replace the power cable.
If the problem is not resolved, see Getting Help.
•
If the DC power LED is not lit, verify that the power switch is turned on. If the power switch is
turned on, see step 2.
•
If the PSU’s fault indicator is lit, see Getting Help.
CAUTION: Power supply unit or cooling fan modules are hot-swappable. The enclosure can
operate on a single power supply; however both modules must be installed to ensure proper
cooling. A single power supply unit or cooling fan module can be removed from a poweredon enclosure for a maximum period of five minutes. Beyond that time, the enclosure may
automatically shut down to prevent damage.
2.
Reseat the power supply by removing and reinstalling it. See AC power supply unit or cooling fan
module.
NOTE: After installing a PSUs, allow several seconds for the enclosure to recognize the PSUs
and to determine if it is working properly.
If the problem is not resolved, see Getting Help.
3.
If all LEDs on the PSUs or cooling fan module are off and if the enclosure is powered on, you must
update the firmware. For information about updating the firmware, see Dell Update Package at
dell.com/support.
Troubleshooting enclosure cooling problems
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
Ensure that none of the following conditions exist:
•
Enclosure cover or hard disk drive blank is removed.
•
Ambient temperature is too high. See Technical specifications.
•
External airflow is obstructed.
•
The power supply unit or cooling fan module is removed or has failed. See Troubleshooting power
supply unit or cooling fan module.
If the problem is not resolved, see Getting Help.
33
Troubleshooting Enclosure Management Modules
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: It is recommended that you turn off the host server before turning off the enclosure to
prevent loss of data.
•
If the EMM status LED is solid or blinking amber (2 or 4 times per sequence):
– Turn off the server.
– Remove the EMM and verify that the pins on backplane and EMM are not bent. See Removing an
EMM.
– Reinstall the EMM and wait for 30 seconds. See Installing an EMM.
– Turn on the server.
– Check the EMM status LED.
•
If EMM status LED is blinking amber (5 times per sequence), update the firmware to the latest
supported firmware on both the EMMs. For more information about downloading the latest firmware,
see Dell Update Package at dell.com/support.
•
If the link status LEDs are not green:
– Turn off the server.
– Reseat the cables on the storage enclosure and the server.
– Restart the storage enclosure and wait until enclosure is fully booted.
– Turn on the server.
– Check the link status LED. If the link status LED is not green, proceed to the next step.
If the problem is not resolved, see Getting Help.
Troubleshooting hard disk drives
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1.
Remove the hard disk drive from the enclosure. See Removing a hard disk drive.
NOTE: You must ensure that you check the hard disk drive indicators before removing the
faulty hard disk drive from the enclosure.
2.
Check the hard disk drives and the backplane to ensure that the connectors are not damaged.
3.
Reinstall the hard disk drive.
4.
Restart the host server.
If the problem is not resolved, go to task 5.
5.
34
Verify that the EMM port link status LED and the EMM status LED are solid green for each port that is
connected to a cable. If the LEDs are not solid green, see Enclosure Management Module.
6.
Ensure that all the cables are attached correctly according to the enclosure mode you selected. For
more information about enclosure modes, see Dell Storage MD1400 and MD 1420 Enclosure
Hardware Deployment guide.
7.
If you reseated the cables, reboot the host server. If the problem persists, see Troubleshooting loss of
communication or see Getting Help.
Troubleshooting enclosure connections
1.
Verify that the EMM port link status LED and the EMM status LED are solid green for each port that is
connected to a cable. If the LEDs are not solid green, see Enclosure Management Module.
2.
Ensure that all the cables are attached correctly according to enclosure mode you selected. For
more information about enclosure modes, see Dell Storage MD1400 and MD 1420 Enclosure
Hardware Deployment Guide.
3.
If you reseated cables, restart the host server.
NOTE: You must turn off the host server before reseating the cables on the enclosure.
If the problem is not resolved, see Getting Help.
Troubleshooting a wet enclosure
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1.
Turn off the enclosure and disconnect all the cables.
2.
Remove the following components from the enclosure. See Installing enclosure components.
•
Hard disk drives
•
Enclosure Management Modules (EMMs)
•
Power supply units or cooling fan modules
•
Control panel
•
Backplane
3.
Let the system dry thoroughly for at least 24 hours.
4.
Reinstall the components you removed in task 2 earlier.
5.
Connect all the cables and turn on the enclosure.
If the enclosure does not start properly, see Getting Help.
Troubleshooting a damaged enclosure
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1.
Ensure that the following components are properly installed:
35
•
Hard disk drives
•
EMMs
•
Power supply unit or cooling fan modules
•
Control panel
•
Backplane
2.
Ensure that all the cables are properly connected and that there are no damaged pins in the
connectors.
3.
Run diagnostics available in Server Administrator.
If the test fails, see Getting Help.
36
Getting help
4
Contacting Dell
NOTE: Dell provides several online and telephone-based support and service options. If you do not
have an active Internet connection, you can find contact information on your purchase invoice,
packing slip, bill, or Dell product catalog. Availability varies by country and product, and some
services may not be available in your area.
To contact Dell for sales, technical support, or customer-service issues:
1.
Go to dell.com/support.
2.
Select your country from the drop-down menu on the top left corner of the page.
3.
For customized support:
a. Enter your system service tag in the Enter your Service Tag field.
b. Click Submit.
The support page that lists the various support categories is displayed.
4.
For general support:
a. Select your product category.
b. Select your product segment.
c. Select your product.
The support page that lists the various support categories is displayed.
Documentation feedback
If you have feedback for this document, write to documentation_feedback@dell.com. Alternatively, you
can click on the Feedback link in any of the Dell documentation pages, fill out the form, and click Submit
to send your feedback.
37