Overland Storage SnapExpansion DX Series Guide

10400396-001 07/2012 ©2012 Overland Storage, Inc. Page 1 of 3
SnapExpansion™
Chassis Replacement Instructions
This document describes how to remove and replace the chassis
of a DX-series SnapExpansion unit from Overland Storage.
WARNING: To reduce the risk of electric shock or damage to
equipment, always remove any power cords while working
with the unit.
AVERTISSEMENT: Pour réduire le risque de choc électrique
ou endommagement de l'équipement, retirez toujours les
cordons électriques en travaillant avec l'appareil.
CAUTION: While working with the unit, observe standard
Electrostatic Discharge (ESD) precautions to prevent damage
to micro-circuitry or static-sensitive devices.
NOTE: These instructions are for the chassis that has captive
screws at the bottom of the flange. For units with the screws at
the top of the flange, refer to document 10400404-001.
Prepare the Unit
Power Off and Disconnect
1. At the head unit, use the Web Management Interface,
select
System Maintenance > Reboot and Shutdown >
Shutdown
to stop services and power it OFF.
This also powers OFF all the expansion units.
2. When all the LEDs of all the units are off, disconnect the
power cords from the expansion unit.
3. Disconnect the SAS cables from the unit noting if they
were plugged into the IN or OUT socket.
Remove the Front Bezel
Carefully take hold of the front bezel and pull it straight out
from the unit until the magnets release. Set it aside.
Remove the Drives
IMPORTANT: Overland recommends that you remove the
drive assemblies to lessen the unit’s weight prior to removal.
NOTE: Do not remove the disk drives from their carriers. Doing so
voids the drive warranty.
1. Press the release button on the right side of the carrier.
2. Using the built-in handle, pull the drive carrier out.
3. Set the drive assembly on an ESD-safe surface.
4. Repeat Steps 1–3 for all remaining drive and blank
carriers.
Power Sockets SAS Cable Ports
*10400396-001*

10400396-001 07/2012 ©2012 Overland Storage, Inc. Page 2 of 3
Chassis Replacement Instructions
Remove Unit from Rack
WARNING: It is recommended that a mechanical lifter (or at
least two people) be used during rack installation or removal
to prevent injury.
AVERTISSEMENT: Pour éviter toute blessure il est
recommande qu'un monte-charge (ou deux personnes au
moins) soit utilisé lors de l'installation ou de l'enlèvement du
support.
1. Release the two captive screws on the bottom front left
and right sides, and slide the chassis out until it stops.
2. Release the rail locks and slide the chassis out onto the
lifter.
3. Move the chassis onto a secure ESD-safe surface.
4. Unpack the new chassis and place it next to the old
chassis.
Transfer Components
Move Inner Sliding Rails
You need to move the attached inner slide rails to the new
chassis:
1. Remove and retain the three screws holding one of the
rails on the side of the old chassis.
2. Position the rail on the same side on the new chassis,
and secure it with the retained screws.
3. Repeat Steps 1–2 for the other rail.
Move the Power Supplies
1. While pressing the release latch toward the handle, pull
the power supply handle to slide out of the old chassis.
2. Slide the power supply into a bay of the new chassis until
it locks (clicks).
3. Repeat steps Steps 1–2 for the remaining power supply.
Install New Chassis in Rack
Install the Chassis
1. Fully extend the middle rails out of the rack.
2. Using the mechanical lifter, position the chassis in front
of the middle rails.
3. Connect the expansion rails into the middle rails, and
slide the unit all the way to the rear.
4. Secure the unit using the two captive screws at the
bottom of the flanges.
Old Chassis New Chassis
ESD-safe Surface
Screws
Side View
Press

10400396-001 07/2012 ©2012 Overland Storage, Inc. Page 3 of 3
http://support.overlandstorage.com
You can get additional technical support on the Internet at the Overland Storage Support web page, or by contacting Overland Storage using
the information found on the Contact Us page on our web site.
Chassis Replacement Instructions
Install Drives
1. Position a drive carrier assembly in front of its empty
slot.
2. Slide in the drive assembly until the latch clicks, locking
it in the slot.
3. Repeat Steps 1–2 for each remaining drive carrier.
IMPORTANT: To maintain proper airflow and cooling, a drive
assembly or a blank carrier must be installed in every slot. No
empty slots are allowed.
Attach the Bezel
1. Position the bezel with the tabs aligned inside the top and
bottom edges of the chassis.
2. Move the bezel toward the unit until the magnets grab.
3. Verify that the bezel is aligned properly with all the
LEDs visible and the Power Panel on the right side
positioned within the hole in the flange.
Attach Cables and Power Cords
1. Reattach the SAS cables to the same connections
previously used.
2. Attach the power cords.
3. Power ON the head unit.
This also powers ON the expansion units.
Complete the Exchange
Validate the System
Log onto the Web Management Interface and verify that the
connections and settings are correct, and that the DX-series
head unit can see the expansion unit.
Check the front LEDs for flashing that may indicate errors.
If there are any problems, contact Overland Technical Support:
http://docs.overlandstorage.com/support
Return Old Chassis to Overland
For return shipping instructions and RMA number, go to:
http://docs.overlandstorage.com/return-instructions.
1. Place the old chassis in the anti-static bag and put it in
the replacement part’s box.
Verify that the packaging materials were reinstalled
correctly to prevent damage during shipping.
2. Follow the RMA instructions to return the part to
Overland Storage.
Magnets Tabs
Power Sockets SAS Cable Ports