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MD4 eSATA Introduction
1 Introduction
1.1 System Requirements
1.1.1 PC Requirements
• Minimum Intel Pentium III CPU 500MHz, 128MB RAM
• eSATA equipped PC; Windows XP/Vista
• Your hardware device must have the correct corresponding port (e.g. eSATA host controller or
PCI card)
• eSATA Plug & Play support and Port Multiplier for host controller
1.1.2 Mac Requirements
• Minimum Apple G4 processor, 128MB RAM
• eSATA equipped Mac; Mac OS 10.4 or above
• Your hardware device must have the correct corresponding port (e.g. eSATA host controller or
PCI card)
• eSATA Plug & Play support and Port Multiplier for host controller
1.1.3 Supported Hard Drives
• Up to four 3.5" SATA-I or SATA-II hard drives (1.5Gb/s or 3.0Gb/s)
• 20GB - 1.5TB per HDD
• Hard drives of identical capacities are recommended
• Supports large volumes in excess of 2TB
Note
In order for the computer to access volumes larger than 2TB, both the hardware and Operating
System need to have the capacity to support large volumes (e.g. WinVista 32bit/64bit or Mac OS
10.4 and above).
1.2 Package Contents
Package content may vary depending on vendor & version.
• MD4 eSATA (hard drives not included)
• Power cord
• eSATA cable
• Manual
1.3 About this Manual
Firmware, images and descriptions can slightly vary between this manual and the actual product
you have. Functions and features may change depending on the firmware version. Please read
your warranty carefully, as this may vary between different vendors!
1.4 Trademarks
• MS-DOS, Microsoft, Windows XP/Vista are trademarks of Microsoft Corporation.
• Apple Macintosh and Mac are trademarks of Apple Computer.
• All other third party brands and names are the property of their respective owners.
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MD4 eSATA Introduction
1.5 Detailed View
1.5.1 LED Indication
LED Status or Function
POWER Blue = Power on
REBUILD Orange = Rebuilding data (RAID 1/10/5)
• Solid red = Confirmation when “MODE Change” button is pressed
HDD 1
HDD 2, 3, 4
1.5.2 RAID Selector Switch
• Solid green = HDD status OK and ready
• Blinking green = Accessing data (read/write)
• OFF = Drive bay is empty or HDD is not recognized (error)
• Solid green = HDD status OK and ready
• Blinking green = Accessing data (read/write)
• OFF = Drive bay is empty or HDD is not recognized (error)
Switch
Position
0 RAID 0 - Disk Striping (2-4 drives)
1 RAID 1/10 - Disk Mirroring (2 or 4 drives)
2 JBOD - Disk Spanning (1-4 drives)
3 RAID 5 - Disk Striping with Parity (3 or 4 drives)
4 Non-RAID - Port Multiplier (1-4 drives)
5 Software - Currently not in use (software setting)
1.5.3 Alarm
The alarm will sound when the fan speed is too low or has failed. To permanently disable the alarm,
remove the top cover and place a jumper on the pins at J10. The pins are located on the circuit
board near by the HDD2 connection.
1.5.4 Smart Fan
The smart fan automatically regulates the fan speed according to the internal temperature of the
device. It will start slow and incrementally increase the speed starting from 45˚C for every 5˚C until
60˚C. When the temperature rises above 60˚C, the fan will operate at full speed.
Function
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