StarTech.com InfoSafe S252U2ERR User manual
Manual Revision: 08/25/2011
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
For the most up-to-date information, please visit: www.startech.com
S252U2ERR
eSATA/USB to Dual Removable 2.5in SATA
HDD Enclosure with RAID
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
o and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit dierent from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other protected
names and/or symbols of third-party companies not related in any way to StarTech.com.
Where they occur these references are for illustrative purposes only and do not represent an
endorsement of a product or service by StarTech.com, or an endorsement of the product(s) to
which this manual applies by the third-party company in question. Regardless of any direct
acknowledgement elsewhere in the body of this document, StarTech.com hereby acknowledges
that all trademarks, registered trademarks, service marks, and other protected names and/or
symbols contained in this manual and related documents are the property of their respective
holders.
Instruction Manual i
Table of Contents
Introduction........................................................................................................................................................1
Packaging Contents ................................................................................................................................1
System Requirements ............................................................................................................................1
Front View......................................................................................................................................................2
Rear View........................................................................................................................................................2
Installation............................................................................................................................................................3
Hardware Installation..............................................................................................................................3
Driver Installation......................................................................................................................................3
How to Congure............................................................................................................................................4
Operating Modes......................................................................................................................................4
Using the Storage Device...........................................................................................................................5
Specications.....................................................................................................................................................7
Technical Support ...........................................................................................................................................8
Warranty Information....................................................................................................................................8
Instruction Manual 1
Introduction
The StarTech.com S252U2ERR Dual Removable 2.5” SATA External Hard Drive Enclosure provides
a complete, hardware-based external RAID storage solution for laptop or desktop computers.
Accommodating two 2.5” SATA 1.5/3.0 Gbps hard drives, this compact HDD enclosure supports
RAID congurations including JBOD (Single), Spanning (BIG/Concatenated), RAID 0 (Fast) and
RAID 1 (Safe).
Packaging Contents
• 1 x SATA Hard Drive Enclosure
• 1 x eSATA cable
• 1 x USB cable
• 1 x Universal Power Adapter with NA/UK/EU plugs
• 1 x Set of keys
• 1 x Stand
• 1 x Instruction Manual
System Requirements
• eSATA and/or USB enabled computer system
NOTE: eSATA host controller should support Port Multiplier technology if using JBOD
mode
• Windows 2000/ XP(32/64bit)/ Server 2003(32/64bit)/ Vista(32/64bit)/ 7(32/64bit)/
Server 2008 R2, Linux, and Mac OS 9.0 and up
Instruction Manual 2
Front View
Rear View
Door Twist Lock
Door Latch
Power/Activity LED
Reset switch
RAID Mode
switch
eSATA
connector
USB
connector
Power
connector
ON/OFF
switch
Instruction Manual 3
Installation
WARNING: Hard drives require careful handling, especially when being transported. If you are
not careful with your hard disk, lost data may result. Always handle your hard drive and storage
device with caution.
Hardware Installation
1. Make sure the power switch on the enclosure is set to OFF and the power adapter is
unplugged from the enclosure.
2. Unlock the drive bay doors by turning the twist lock clockwise with the provided keys.
3. Open the drive bay doors by pulling on the metal door latch forward.
4. Slide a bare 2.5”SATA hard drive into the drive bay and close the door behind it, making sure
it latches properly.
5. Lock the drive bay doors by turning the twist lock counter-clockwise with the provided keys.
6. Set the enclosure to the proper RAID mode via the selection switch on the rear.
7. Connect the power adapter from an electrical outlet to the enclosure.
8. Power on the enclosure by setting the power switch to ON.
9. Press the “Reset” button on the rear of the enclosure to ensure the proper RAID mode
becomes set.
10. Connect the enclosure to the computer via eSATA or USB, not both.
11. To remove drives from the enclosure, rst make sure that the disk volume is unmounted
within the operating system (see documentation for your operating system or host
controller) or the computer is o.
12. Turn the enclosure o by switch the power switch to OFF.
13. Unlock the drive bay door with the provided keys and open by pulling the metal latch
forward.
Driver Installation
No driver installation is required for these operating systems, as this enclosure is natively
supported, so the drivers are already installed.
Instruction Manual 4
How to Congure
Operating Modes
Mode Description
RAID 0
(Striping)
Striping combines multiple disks into a single large disk array.
The data is split evenly across each disk simultaneously. Read/
write performance is increased as a result, but failure of any one
disk will make the entire array unusable.
RAID 1
(Mirror)
Mirroring writes the same data across multiple disks, creating
exact mirror copies. This provides redundancy in case one drive
fails.
JBOD
(Single)
JBOD enables each hard drive to be seen as separate
independent drives. If only a single hard drive is installed,
ensure this mode is enabled.
NOTE: When using eSATA, this mode should only be used if the
eSATA host controller provides Port Multiplier (PM) support. If a
host is not PM-aware, only a single drive will be visible. No such
limitation exists if using the USB connection.
BIG
(Concat)
BIG concatenates multiple hard drives into a single large disk.
Provides no performance or redundancy benets.
Instruction Manual 5
Using the Storage Device
Windows 2000/XP/Vista/7
If you are using a brand new hard drive that does not contain any data, then you will rst
need to prepare the hard drive for use. From the main desktop, right-click on “My Computer”
(“Computer” in Vista/7), then select Manage. In the new Computer Management window, select
Disk Management from the left window panel.
Locate the Disk that says it is “Unallocated” (check hard drive capacity to conrm it’s the correct
hard drive) and then right-click in the section that says “Unallocated” and select “New Partition”.
Instruction Manual 6
The New Partition Wizard will appear. Follow the instructions in the wizard to complete setting
up the drive. Once complete, the Disk should show up as “Healthy” with a drive letter assigned
(i.e. E:). This drive letter should now appear within My Computer.
If you are installing a hard drive that already has data on it, then after plugging it in, the drive
should automatically show up with a drive letter assigned within My Computer.
Instruction Manual 7
Specications
Number of Hard Drives 2
Host Interface USB 2.0
SATA 3.0 Gbps
Chipset ID Silicon Image SiI5744
Connectors
1 x eSATA*
1 x USB mini-B
1 x DC Power
LEDs 2 x Power/Activity
Compatible Hard Drives 2.5” SATA 1.5/3.0 Gbps compatible,
height up to 9.5mm
Maximum Data Transfer Rate
eSATA: 3.0 Gbps
USB2.0: 480 Mbps
RAID Modes 0, 1, JBOD (single), BIG (concat)
Power Adapter 5VDC, 2A, center positive
Operating Temperature 5°C ~ 70°C (41°F ~ 158°F)
Storage Temperature -40°C ~ 80°C (-40°F ~ 176°F)
Humidity 8 ~ 90% RH
Dimensions 150.0mm x 101.0mm x 25.0mm
Weight 224g
Compatible Operating Systems Windows 2000/XP/Vista/7 (32/64-bit),
Mac OS 10.2 or later, Linux
* eSATA host controller must support Port Multiplier (PM) technology for use with JBOD
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