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3.5” 4 Bay RAID enclosure
User Guide
Include
☆ Getting Started & Notice
☆ About the Enclosure
☆ HDD Installation Guide
☆ RAID Mode Guide
☆ Hard Drive Formatting Guide
☆ Power Synchronization
Important: All data will be deleted on each
HDD Mode change. Back up HDD(s) before
adjusting RAID Switch.
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HDD1
HDD2
USB 3.0
eSATA
HDD3
HDD4
1. Getting Started & Notice
This 4-bay RAID enclosure allows users flexibly operate their HDDs with different modes.
When using eSATA connection, eSATA host controller on the computers must be Port
Multiplier (PM) capable. Otherwise, only a single drive will be presented (HDD 1). No such
limitation by USB connection.
- USB 3.0 connection and backward compatible to USB 2.0
- SATA-II interface hosts SATA – I, II, III HDD(s)
- HDD capacity supports up to 3TB in GPT format, W7/Vista, Linux, MAC
- Windows XP can’t support 3TB HDD
Notice:
1. Please read the manual carefully before you begin using this product.
2. This product operates between 0oC to 40oC with a relative humidity between 5% to 80 %.
Be sure the unit is operating in a well ventilated environment.
3. Do not block any of the ventilation holes on the product in order to retain the best heat
dissipation efficiency possible.
4. Do not place any liquids or chemical hazards near the product.
5. This product operates using a 12V/DC output, 100V~240V/AC input power adapter. Do
not use any other types of AC/DC rating’s adapter which differs to the mentioned
specifications. Doing so will severely damage the product.
6. The power adapter should be well ventilated and not be covered by any object.
7. HDDs must be well secured and fixed to the HDD-tray before sliding the HDD-tray into
the Multi-HDD frame.
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USB 3.0
Connect USB 3.0 Cable to computer
eSATA
Connect eSATA Cable to computer
Rotatory Knob
Tuning the FAN speed to from minimum to maximum speed to
allow efficient ventilation, and backward to reduce noise level.
Power LED
Green
ON : Power on
OFF: Power off
HDD 1 LED
Blue
ON : HDD inserted
Flash Randomly: Accessing (Read/Write/Rebuild)
Flash Constantly(3Hz): HDD error
OFF: HDD not installed/Removed/sleep mode
HDD 2 LED
Blue
ON : HDD inserted
Flash Randomly: Accessing (Read/Write/Rebuild)
Flash Constantly(3Hz): HDD error
OFF: HDD not installed/Removed/sleep mode
HDD 3 LED
Blue
ON : HDD inserted
Flash Randomly: Accessing (Read/Write/Rebuild)
Flash Constantly(3Hz): HDD error
OFF: HDD not installed/Removed/sleep mode
HDD 4 LED
Blue
ON : HDD inserted
Flash Randomly: Accessing (Read/Write/Rebuild)
Flash Constantly(3Hz): HDD error
OFF: HDD not installed/Removed/sleep mode
2. About the Enclosure
Hardware Overview________________________________________
Power DC input
Receptor for the provided Power Adapter
- 12V DC, 100-240V AC, 50-60Hz
- 4 Amp (by minimum requirement)
PC connection interface
Note: When connecting eSATA and USB3.0 to the PC at the same time, eSATA connectivity will be
prioritized
FAN Speed Control
LED Indication:
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Front / Back View
Power LED
HDD1 LED
HDD2 LED
HDD3 LED
HDD4 LED
Tray lock
Power On/Off
RAID Reset
HDD Tray
Fan Speed Control
eSATA
RAID Mode Switch
USB3.0
Power Jack
(DC12V)
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3. HDD Installation Guide
Step1: Push the Locker to the left to unlock the HDD tray.
Step2: Take out the HDD trays.
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Step3: Paste the HDD pad(s) to the center & inside of the tray(s) ONLY IF the HDD(s)
cannot be stably mounted.
Step4: Install the HDD(s) into the tray(s) and fix 2 screws on both sides per tray. Make sure
screws are firmly fixed to hold the tray(s) and HDD(s) together.
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Step5: Slide HDD trays back to the case.
Step5: Push the Locker to the right to lock the HDD tray.
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JBOD
Just a bunch of Drives, R/W each HDD independently
Sum of 4 HDD capacity
RAID 0
RAID : R/W on each HDD simultaneously
Capacity: multiply the smallest capacity by 4
RAID 3
RAID: Byte-level striping with dedicated parity
Capacity: multiply the smallest capacity by (4-1)
RAID 5
RAID: Block-level striping with distributed parity
Capacity: multiply the smallest capacity by (4-1)
RAID10
(RAID1)
RAID: mirroring on each HDD simultaneously
Capacity equals to the smallest HDD multiply 2
Note:
1. HDD1/HDD2 create a set of RAID 1: HDD1/2
HDD3/HDD4 create a set of RAID 1: HDD3/4
Two sets (HDD1/2, HDD3/4) create a set of RAID 0
2.When install only two HDDs, the device will perform RAID1
Capacity: Smaller capacity by 1
Normal
Shows 4 individual HDDs
4. RAID Mode Guide
RAID Modes
RAID Switch setting:
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RAID Reset
RAID Switch
Raid Mode Setting
RAID mode setting via RAID switch
1. Power on the case.
2. Check and make sure all HDDs are installed and all HDD LEDs light up.
3. Connect the case to PC via USB or eSATA cable(1 cable only). Make sure HDD LED
light up.
4. Select HDD Mode from below table by adjusting “Raid Switch”, which is located at
the back of the case.
5. Pin and hold “RAID Reset” for 3~5 seconds. Then HDD mode will change according
to the selection.
6. After setting RAID mode, please initialize the HDD again to have the HDD workable.
Please refer to Page.18 for initializing a hard disk.
7. Format HDDs before they are ready to use.
Note:
Refer to Hard Drive Formatting Guide in the below session for detailed
After setting the RAID mode, you can look over the JMicron HW RAID Manager
instructions.
for checking if you have the correct RAID mode.
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RAID mode Setting via JMicron HW RAID Manager
Note: NO RAID mode setting software for Linux OS.
1. Power on the case.
2. Check and make sure all HDDs are installed perfectly
3. Connect the case to PC via USB or eSATA cable. Make sure all HDD LEDs light
up.
4. Select JMicron HW RAID Manager_Win for Windows OS. Select JMicron_Mac
for Mac OS.
5. Select the Basic RAID Configuration icon under Basic mode for RAID mode
setting.
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6. Select the RAID mode that you want to apply
7. Press Apply
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8. After configuration is set, you will find the disk(s) not initialized. Right click the
icon to initialize disk(s). For more details for initializing disk(s), please refer to
page.18 for guidance.
9. Format HDDs before they are ready to use.
Note:
Refer to Hard Drive Formatting Guide in the below session for detailed
instructions.
No matter how many hard disks you install, once you apply RAID configuration,
the computer will recognize this device as 1 big disk, leaving the other HDD(s) idle.
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(HDD1)
LED 1
(HDD2)
LED 2
(HDD3)
LED 3
(HDD4)
LED 4
RAID 3
◎ ◎ ◎
◎
RAID 5
◎ ◎ ◎
◎
RAID 10
HDD1/2
◎
◎
●
●
HDD3/4
●
●
◎
◎
Rebuild Complete(Online)
● ● ●
●
Rebuild Complete(Offline)
RAID Rebuild
RAID rebuild can only be performed under RAID3/5/10 configuration. Please follow the
following steps to start rebuilding.
Step 1: Power Off,
Step 2: Remove failed HDD.
Step 3: Install a functional HDD.
Step4: Turn on the power, and it’ll start rebuilding
- LED Configuration on Rebuild process
RAID 3/5: 4 LED blinks irregularly
RAID 10:
HDD1/2: LED 1/2 blinks irregularly on rebuild
HDD3/4: LED 3/4 blinks irregularly on rebuild
LED Activity Chart: this chart describe LED activity under RAID rebuild process
● Constant On
◎ Blinks Irregularly
Note:
1. Rebuild speed 250GB/HR
2. Anytime when a HDD failure is detected, the LED blinks at a constant pace.
3. Online: Power cable is connected to the device, USB or eSATA cable is connected to PC.
Offline: Only power cable is connected to the device.
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5. Hard Drive Formatting Guide on Windows
Partition a volume
A volume must be partitioned before you may begin using the drives under the operating
system. The following sections describe procedures required to partition a volume.
Note :
- Follow the step-by-step instructions below to complete the HDD partitioning and
formatting.
- Each HDD has to be partitioned and formatted respectively.
1. Right-click the Computer icon and select Manage from the pop-up window. From
the Computer Management window select Disk Management under Storage to start
formatting.
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2. Right-click “Unallocated” and select New Simple Volume. If a New Simple
Volume option is not available, initialize the disk first. To initialize a disk, please
check “Initialize a Disk” at page.18 for guidance.
Note: In Win XP, you will probably find New Partition instead of New Simple
Volume. It’s basically the same idea, those two terms are often used interchangeably.
3. Click Next to start the New Simple Volume Wizard.
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4. Specify the partition size. By default the partition occupies the entire volume. Click
Next.
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5. Assign a drive letter and click Next.
6. Name, format the partition, and click Next.
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7. Review the file system settings and click Finish to create the logical partition.
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Initialize a Disk
If a New Simple Volume option is not available while right-clicking the “Unallocated”
box, look to the left of the “Unallocated” box. You most likely would see HDD(s) “Not
Initialized”. Initialize the HDD(s) and make sure you see “Online” before proceeding
to HDD formatting/partitioning.
4 Bay MULTI HDD BOX User Guide
1. Right-click the “Not Initialized” block to observe below drop window.
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2. Select “Initialize Disk”.
3. You will find a pop-up window below, Win 7 provides options for “MBR” or “GPT”.
It is recommended selecting “MBR” if the HDD capacity does not exceed 2TB. On the
other hand, “GPT” is recommended if HDD capacity is over 2TB.
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4. “Online” message will replace “Not Initialized” message when disk is initialized and
ready for disk partitioning and formatting.
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6. Hard Drive Formatting Guide on Linux
Partition a volume under Linux Ubuntu
A volume must be partitioned before you may begin using the drives under the operating
system. The following sections describe procedures required to partition a volume.
Note :
- Follow the step-by-step instructions below to complete the HDD partitioning and
formatting.
- Each HDD has to be partitioned and formatted respectively.
1. Click the Disk Utility on the Desktop
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2. You can find the hard disks under Peripheral Devices, choose the hard drive that you
want to format, then select Format Drive
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3. Select GUID Partition Table if the capacity for your hard disk is over than 2TB. Select
Master Boot Record if your hard disk capacity is under 2TB.
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4. Select Create Partition, then you can decide the size for each partition by sliding the bar
to left or to right.
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5. Select File Type. Please be noted the message below the Type column. If it says this file
system is compatible with Linux system only. Then this hard disk can’t be recognized
by Windows or other OS system.
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6. Press Create for creating a new partition
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7. The new partition is being created, you will find New Volume after finishing the
creating process.
8. Once you see New Volume, select Mount Volume
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9. Select Mount Point to access into the folder.
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7. Hard Drive Formatting Guide on Mac
Partition a volume under Mac OS
A volume must be partitioned before you may begin using the drives under the operating
system. The following sections describe procedures required to partition a volume.
Note :
- Follow the step-by-step instructions below to complete the HDD partitioning and
formatting.
- Each HDD has to be partitioned and formatted respectively.
1. Right click the Go icon and select Utilities from the pop-up window.
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2. Select Disk Utility
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3. Select Partition on the top of the window, then select 1 partition from the Partition
Layout.
Note: 1partition is only a suggestion since Mac OS doesn’t need to update the software very
often.
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4. Select Options at the bottom of the window
5. Please select GUID Partition Table. Currently, most of the Mac computers are Intel
based, so if you’d like to make the hard drive works normally or use it as an system drive,
please make sure you select GUID Partition Table.
Note: For PPC Mac, please select Apple Partition Map
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6. Select Apply to finish formatting a hard drive
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8. Power Synchronization
HD3402JRC can detect the status of PC and turn on & off it automatically.
a. PC power off
PC Power off Power LED on, HDD off, 4HDD LED off, FAN off
b. PC hibernates(sleep mode)
Note: in some OS, when system reaches sleep mode, only monitor and peripheral turned
off while motherboard power on. In this case, HDD and LED will be still on.
PC Hibernates Power LED on, HDD off, 4HDD LED off, FAN off
Note:
10. To enhance smart power synchronization, do not turn off main power of this device.
11. FAN stops within 90 seconds after power synchronization initiated.
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Note
About HDD Mode
Resetting the device is necessary every time HDD Mode changes. Press Raid Reset button
only when the device is powered on & connected to a running PC. HDD pre-installation is
mandatory.
Make sure to back up all files before HDD mode changes since such practice requires HDD
reformatting.
Detailed procedures to perform HDD Mode change as follow
a. Install four HDDs to the case
b. Connect the case and PC and have both devices powered on. Strong recommendation on
USB connection is proposed.
c. Adjust RAID switch correctly.
d. Pin and hold Raid reset button for 3-5 seconds to observe rapid blinking of four HDD
LEDs. HDD mode adjustment is complete when LED rapid blinking stops.
e. Initialize and format HDD(s) to complete operation.
When using four HDDs of unequal capacity, users may experience capacity reduction
under RAID0/3/5 and RAID10 configuration. Therefore, it is recommended that HDDs of
equal capacity are used to utilize the application.
About HDD Capacity Support
Installing HDD(s) over 2TB is possible. However, make sure to run this device under Vista,
Win7, Linux and Mac OS and activate GPT(GUID Partition Table) mode when formatting
this device to have it work correctly.
About USB & eSATA Connectivity
The equipped USB3.0 port is downward compatible with USB2.0 PC/notebook by simply
plug and play.
eSATA host(PC) needs to support Port Multiplier function in order to have Normal
Mode(Single) operable thus 4 HDDs correctly recognized.
If eSATA host(PC) doesn’t support hot swappable plug and play function, please pay
attention to the sequence to powering on the case as follows
a. Connect eSATA cable when case and PC are powered off.
b. Power on case first and observe HDD Link LED(s) are light on
c. Power on PC
Practice this procedure every time reconnection is necessary.
Connecting USB & eSATA simultaneously is impossible. eSATA connection will be
prioritized.
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