Xcellon HDD-202 User manual

User Manual

Thank you for choosing Xcellon.
The Xcellon HDD-202 is the most convenient way to create a
two-disk RAID system with internal-type SATA drives. The HDD-
202’s tray-less, top-loading bays enable easy access with simple,
tool-free installation—instead of dismantling your computer
and installing your drives, just insert the drives directly into
the dock. Five RAID modes deliver a variety of options when it
comes to read/write functions, data storage, and backup, and are
configured via the DIP switches located on the rear of the device.
The HDD-202 is equipped with a USB-C™port that is capable
of attaining SuperSpeed USB 10 Gbps transfer rates, when used
with compatible devices. Designed to work with hard disk drives
and solid state drives, the HDD-202 accommodates 2.5″laptop-
sized and 3.5″ desktop-sized SATA I/II/III drives with capacities
up to 8 TB. The dock supports plug-and-play and hot-swapping
and includes all necessary interface cables.
2

3
Precautions
»Please read and follow these instructions, and keep this manual in
a safe place.
»Back up your data before using this product in order to prevent
loss of important data. Xcellon will not be responsible for any
data loss.
»Keep this product away from water and any flammable gases or
liquids.
»Use only the correct, recommended voltage.
»Handle this product with care.
»Clean this product with only a soft, dry cloth.
»Keep this product away from children.
»Do not store this product in direct sunlight or in extreme high or
low temperatures.
»All photos are for illustrative purposes only.

4
Overview
Top
1 SATA contacts
2 2.5” drive slot
3 3.5” drive slot
Front
4 HD 1 status LED (blue, purple, red)
5 HD 2 status LED (blue, purple, red)
6 Power LED (blue)
Rear
7 Power button
8 DC power port
9 USB-C port
10 Set button
11 RAID switches
12 Raid button instruction
Also Included
»USB Type-C to Standard-A cable
»USB Type-C to Type-C cable
»DC power adapter
»User manual

5
HDD 1 • HDD 2 •
POWER •
HDD 2
HDD 1
DC
Set
USB C
RAID
mode
WARNING
Back up all data before
changing the RAID mode
GUI
12 3
ON
RAID1
12 3
ON
SPAN
12 3
ON
RAID0
12 3
ON
PM
12 3
ON
HD 1 • HD 2 •
POWER •
HD 2
HD 1
WARNING
Back up all data before
changing the RAID mode
RAID 0
1 2 3
ON
RAID 1
1 2 3
ON
JBOD
1 2 3
ON
SPAN
1 2 3
ON
PM
1 2 3
ON
2
7
8 9 10 11 12
1
6
3
4
5
USB-C

6
Plugging In and Setting Up
1. Use the included power adapter to connect the dock to an AC
power source. Make sure the dock is turned o by verifying that
the power LED is not glowing.
2. Use one of the included USB cables to connect the dock to the
corresponding port on your computer.
3. Align the SATA contacts on your disk drive and the dock, and
fully insert the drive into the dock.
4. Press the power button to turn on the dock. The power LED will
glow blue and the status LED that corresponds to your hard disk
will blink purple.
The HDD-202 works with one drive or two. In order to set up a RAID
system, you will need to install two drives.
If your disk drive has been formatted, your computer will notify you
that new hardware has been detected, and the drive will appear on
the Desktop, in My Computer, or in the Finder.
If the drive has not been formatted, or if your computer cannot read
or recognize it, you may need to format the drive. See Formatting
Your Disk on page 11.
The HD LEDs will change color depending on the current status
of the corresponding drive. The LEDs will glow blue during normal
operation, purple when a drive is active, and red if a drive is damaged.

7
RAID Mode Configuration
The RAID mode options are 0, 1, Span (Big), JBOD, and Port Multiplier.
The default mode is JBOD. Familiarize yourself with the advantages
of each RAID mode before making a selection.
Important! Before configuring the RAID mode, make sure to
back up your data. All data on the installed disk drives will be
eliminated during the configuration process.
Make sure that both drives have the same rotational speed (RPM).
When using RAID modes 0 or 1, it is recommended that both hard
drives have the same capacity. If possible, use identical drives.
RAID 0
RAID 0 mode stripes data in blocks across the two disk drives. This
mode links the drives installed in the dock, so they can function as a
single drive with combined storage space. If you are using two 100
GB drives, they will combine to function as a single 200 GB drive.
Figure 1. In RAID 0 mode, both disks will appear as a single disk on your computer.
Total 200 GB
100 GB 100 GB
A3 A4
Disk 1 Disk 2
A1 A2
!

8
RAID 1
RAID 1 mirrors the data in blocks on the two disk drives, so the exact
same data is stored on both drives. Data integrity is more reliable
in this mode than in RAID 0 mode, although there is less accessible
disk space and the transfer speed is slower. Mirroring makes it
easier to recover lost data if one of the RAID drives is damaged (see
Troubleshooting on page 16). Only one of the two drives is accessible
in RAID 1 mode.
Figure 2. RAID 1 mode, only one drive will appear on your computer.
When using RAID 0 and RAID 1 modes, you can use disk drives
of varying capacities, although the capacity will be limited to the
smallest of the disk drives. For example, if you are using a 100 GB and
a 250 GB drive, then the 250 GB will be limited to the smaller 100 GB
capacity, and the total combined capacity will be 200 GB.
Total 100 GB
100 GB 100 GB
A2 A2
Disk 1 Disk 2
A1 A1
Key
Accessible Not
Accessible

9
JBOD
In JBOD mode, the two disk drives function independently of one
another. JBOD is an acronym for Just a Bunch of Disks.
Figure 3. In JBOD mode, both disks will appear on your computer.
Span (Big)
Span mode links the two disk drives, so they function as a single drive
with combined storage space. This mode is similar to RAID 0 mode,
but it does not stripe the data across the disks. Span mode is not as
fast as RAID 0, but it is more secure.
Figure 4. In Span mode, both disks will appear as a single disk on your computer.
Total 200 GB
100 GB 100 GB
A2 B2
B3
Disk 1 Disk 2
A1 B1
Total 200 GB
100 GB 100 GB
A2 A7
Disk 1 Disk 2
A1 A6
A3
A4
A5
A8

10
Port Multiplier:
In Port Multiplier (PM) mode, you can run up to 15 drives from a single
SATA port via a PM cable. In a PM setup, the drives connected to the
PM cable will function as a JBOD system.
Note: Separate power is required for the drives in a PM setup. All
the drives will share the same SATA speed, so they will be unable
to attain the maximum rate.
Configuring the RAID Mode
RAID modes are configured via the switches on the back of the dock.
To configure the RAID mode, follow these steps:
1. With both drives installed into the dock,
set the RAID mode switches to the desired
configuration as shown in the table to the right.
2. Press and hold the Set button for ten seconds.
This will start the RAID setup procedure, during
which the HD status LEDs will blink purple
intermittently.
3. After ten seconds, let go of the Set button. At
this point, the LEDs will have stopped blinking,
and your computer will have recognized your
drives in the new RAID mode.
Note: If your disks are formatted, then you will not need to reformat
them after reconfiguring the RAID mode, but you will lose your data. You
may need to initialize your disk drives after configuring the RAID mode.
If your computer does not recognize your disks after reconfiguring
the RAID mode, try rebooting the dock or your computer. For more
information, refer to Troubleshooting on page 16.
WARNING
Back up all data before
changing the RAID mode
RAID 0
12 3
ON
RAID 1
12 3
ON
JBOD
12 3
ON
SPAN
12 3
ON
PM
12 3
ON
!
!

11
Removing Your Disk Drive
Important! To prevent data loss, do not unplug the HDD-202,
turn it o, or remove your disk drive from the enclosure until all
steps have been completed.
Windows
1. Close any programs that might be using the drive.
2. Right-click on the mobile hardware icon in the right-hand corner
of the task bar.
3. Select the device you want to remove.
4. After the computer indicates that it is safe to remove the device,
gently pull the disk drive out of the dock.
Mac
1. Click on the eject symbol next to the device’s icon in the Finder.
2. After the device disappears from the Finder, gently pull the disk
drive out of the dock.
Formatting Your Disk Drive
If your disk drive has not been formatted, or if your computer
cannot read or recognize it, then you may need to format the drive.
Formatting a drive will erase all of its data. If you have data on your
drive, make sure to back it up before formatting.
Note: The Windows XP and Vista 32-bit operating systems each have a
maximum drive capacity of 2 TB.
!
!

12
Windows XP
3. Right-click on My Computer and select Manage.
4. In the right column of the Computer Management window,
double-click on Storage and then Disk Management (Local).
5. In the bottom half of the right column, you will see a list of the
connected disk drives and their partitions. Formatted drives
have a blue bar, and unformatted drives have a black bar and are
labeled Unallocated.
6. If your disk is unformatted, skip to the next step. If your disk
is partitioned and formatted, right-click the partition labeled
Primary partition and select Delete Partition. Confirm your
selection in the dialog box that follows. Windows will delete the
partition, and the box that was labeled Primary partition will
now be labeled Unallocated.
7. Right-click on the partition labeled Unallocated and click on
New Partition. This will open the New Partition Wizard.
8. When the New Partition Wizard opens, click on Next to
continue.
9. In the Select Partition Type window, select Primary partition.
Click on Next to continue.
10. In the Specify Partition Size window, make sure the maximum
disk space in megabytes (MB) is the same as the partition size
in MB, in order to make a whole-drive partition. Click on Next to
continue.

13
11. In the Assign Drive Letter or Path window, select a letter from
the drop-down menu to assign to the disk drive. Click on Next to
continue.
12. In the Format Partition window, select Format this partition
with the following settings.
a. From the File system drop-down menu, select the file system
you want to use for the disk.
b. Set Allocation unit size to Default.
c. Type in a name for the disk in the Volume label text entry box.
The default disk name is “New Volume”.
d. You can opt to perform a quick format or a full format.
e. Make sure Enable file and folder compression is unselected.
f. Click on Next to continue.
13. Review your settings and click on Finish. Windows will format
the partition, which will appear as formatted in the Computer
Management window, and the disk will appear as a usable drive
in My Computer.
Windows Vista/7/8/8.1/10
These instructions will help create a formatted, whole-drive partition.
1. In Windows Vista and 7, right-click on My Computer and select
Manage. In Windows 8, 8.1, and 10, press Windows key+Xto
open the Quick Links menu. Select Disk Management and skip
to step 3.

14
2. In the middle column of the Computer Management window,
double-click on Storage and then Disk Management.
3. In the bottom half of the middle column, you will see a list of all
the connected disk drives and their partitions. Formatted drives
have a blue bar, and unformatted drives have a black bar and are
labeled Unallocated.
4. Right-click on the partition labeled Unallocated and click on
New Simple Volume. This will open the New Simple Volume
Wizard.
5. When the New Simple Volume Wizard opens, click on Next to
continue.
6. In the Specify Volume Size window, make sure the maximum
disk space in MB is the same as the simple volume size in MB, in
order to make a whole-drive partition. Click on Next to continue.
7. In the Assign Drive Letter or Path window, select a letter from
the drop-down menu to assign to the disk drive. Click on Next to
continue.
8. In the Format Partition window, select Format this volume
with the following settings.
a. From the File system drop-down menu, select the file system
you want to use for the disk.
b. Set Allocation unit size to Default.
c. Type in a name for the disk in the Volume label text entry box.
The default disk name is “New Volume”.

15
d. You can opt to perform a quick format or a full format.
Perform a quick format is the default option.
e. Make sure Enable file and folder compression is unselected.
f. Click on Next to continue.
9. Review your settings and click on Finish. Windows will format
the partition, which will appear as formatted in the middle
column of the Computer Management window, and the disk
will appear as a usable drive in My Computer.
Mac OS X
1. If your disk drive is unformatted, a dialog box will appear, stating
that the computer cannot read the disk. Click on Initialize to
open the Disk Utility application. Alternatively, you can go to
Applications/Utilities/Disk Utility.
2. In the left column of the Disk Utility window, you will see a list
of connected disk drives. Select the disk you want to erase and
click on the Erase tab in the right-hand column.
3. From the Format drop-down menu, select the file system you
want to use for the disk.
4. Type in a name for the disk in the Name text entry box. The
default disk name is “Untitled”.
5. Click on the Erase button and confirm your selection in the
dialog box that follows. Mac OS will format the disk, and it will
appear in the Finder under the Devices category.

16
Problem Solution
The dock will not turn
on.
• Make sure the DC power adapter is fully
plugged into the dock’s DC power port and
your AC power source.
• Check your power source to make sure it’s
reliable. Try switching AC power sources.
The dock is turned on,
but the disks do not
appear in my computer.
• Make sure the USB cable is fully plugged into
your computer and the dock. Try another USB
port on your computer.
• Make sure your drives are properly inserted
into the dock.
• If you’re using a PC, you may need to format
the disks. For more information, refer to
Formatting Your Disk Drive on page 11.
• Reboot the dock.
• Reboot your computer.
A disk in my RAID 1
system has failed.
If one of the two disks in a RAID 1 system fails,
you will still be able to recover your data via the
remaining undamaged disk. This is the advantage of
a RAID 1 system—the data is mirrored on both disks
installed in the dock.
To recover your data, follow these steps:
1. If one of the drives fails, do not immediately
remove the damaged drive and install another
drive. You will still have normal access to your
data via the undamaged drive.
Troubleshooting

17
Problem Solution
(Continued) 2. Back up your data on a dierent drive.
3. Remove the drive that corresponds to the
blinking red status LED.
4. Insert a new (working) drive into the dock and
reset the RAID system. This requires initial-
izing and reformatting your hard drives.
Pressing and holding
the Set button does not
initiate RAID setup.
My computer does not
recognize my drives in
the newly reconfigured
RAID mode.
• Reboot the dock.
• Reboot your computer.
The red error LED won’t
turn o.
Clearing the red error LED will clear your RAID setup
and configure it as a JBOD system.
To clear the red error LED, follow these steps:
1. Back up your data on a dierent drive.
2. Set all of the RAID mode switches
to O position.
3. Press and hold the Set button for ten
seconds.
4. After ten seconds, let go of the Set button. At
this point, the red error LED will have stopped
blinking, and your computer will have recog-
nized your drives as a JBOD system.
1 2 3
ON

18
Specifications
Drive types supported 2.5” and 3.5” SATA I/II/III type HD
Maximum hard disk
capacity
8 TB (per drive)
Internal interface SATA (×2)
External interface USB Type-C
Data transfer rate
(maximum)
10 Gbps
Supported RAID modes 0, 1, JBOD, Span (Big), Port Multiplier (PM)
Chipset Asmedia 1352R
Protocols UASP, BOT
System requirements Windows XP/Vista/7/8/8.1/10
Mac OS X 10.6.7 or higher
Linux
Available USB port on the computer
Power requirements External power supply
AC Input: 100–240 V, 50/60 Hz, 0.5 A maximum
DC Output: 12 V, 2.5 A
Construction Aluminum, plastic
Operating environment Operation temperature: 41°F–104°F (5°C–40°C)
Storage temperature: -4°F–158°F (-20°C–70°C)
Dimensions (W × H × D) 5.3” × 2.6” × 4.6” (13.5 × 6.6 × 11.7 cm)
Weight (without drives) 1.2 lb. (544.3 g)

19
One-Year Limited Warranty
This Xcellon product is warranted to the original purchaser to be free from defects in
materials and workmanship under normal consumer use for a period of one (1) year
from the original purchase date or thirty (30) days after replacement, whichever
occurs later. The warranty provider’s responsibility with respect to this limited
warranty shall be limited solely to repair or replacement, at the provider’s discretion,
of any product that fails during normal use of this product in its intended manner and
in its intended environment. Inoperability of the product or part(s) shall be determined
by the warranty provider. If the product has been discontinued, the warranty provider
reserves the right to replace it with a model of equivalent quality and function.
This warranty does not cover damage or defect caused by misuse, neglect, accident,
alteration, abuse, improper installation or maintenance. EXCEPT AS PROVIDED
HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES
NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This
warranty provides you with specific legal rights, and you may also have additional
rights that vary from state to state.
To obtain warranty coverage, contact the Xcellon Customer Service Department to
obtain a return merchandise authorization (“RMA”) number, and return the defective
product to Xcellon along with the RMA number and proof of purchase. Shipment of
the defective product is at the purchaser’s own risk and expense.
For more information or to arrange service, visit www.xcellongear.com or call
Customer Service at 212-594-2353.
Product warranty provided by the Gradus Group.
www.gradusgroup.com
Xcellon is a registered trademark of the Gradus Group.
© 2015 Gradus Group LLC. All Rights Reserved.

GG2