CRU Dataport RAX 215DC-XJ User Manual Download Page 5

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5. Frequently Asked Questions (FAQ)

Q: Why won’t the computer let me eject or unmount my drive?
 

A:  There may be a software application running in the background 

with an active link to the drive. 

Sometimes, you may see a message such as “The disk is in use and 
could not be ejected. Try quitting applications and try again.”  Try 
invoking the Force Quit feature in OS X to see what software may be 
running. For Windows, the equivalent command is CTRL-ALT-DEL. 

Drives connected to the computer via eSATA cannot be ejected in 
Windows the way FireWire or USB drives can. However, freeware 
utilities are available on the internet that provide a similar function.

Q: Does my 2-bay RAX unit support RAID?

A:  The models covered in this manual support only JBOD functional-

ity.  However, the drives can be RAIDed in software, or RAX can be 
attached to a RAID HBA for hardware RAID functionality. 

Q: Why is my hard drive experiencing data corruption?

A:  Many things can cause data corruption on hard drives, whether 

they are inside your computer or inside an external storage 
product. Malicious software, OS bugs, failure to properly discon-
nect external devices, or no reason at all. Data corruption or loss is 
therefore not covered by warranty (this is the case with all rational 
companies in the storage industry). 

The first thing to try is restarting both the computer and the 
external device. If the data is still corrupted, try running built-in 
OS utilities (such as Mac OS X’s Disk Utility First Aid) on the hard 
drive. For best results, boot your computer with a Mac OS X Instal-
lation CD, and launch Disk Utility from the CD. When you reach the 
Mac OS Installation program, you can run Disk Utility from one of 
the menus at the top of the screen. From Disk Utility, you can run 
“Verify Disk” and “Repair Disk” to find and fix any errors that may 
be present in your Mac OS installation. 

If the OS utility doesn’t help, you may need Data Rescue. This is a 
great solution for recovering lost data from a hard drive which has 
suffered data loss or corruption. If there is a true hardware failure 
of your hard drive that prevents it from communicating with your 
computer, there is no software solution in existence that can fix 
this problem. However, since we cannot tell you with any certainty 
whether or not you are experiencing hardware failure in your 
particular hard drive, we would encourage you to download a free 
demo version of ProSoft’s Data Rescue from www.prosofteng.com. 
It is limited, in that it only allows you to recover one file per session, 
but it will tell you if it even sees any files.

Q: Will this product work with hard drives larger than 2.2TB?

A:  Yes, assuming the rest of your configuration (e.g. OS, BIOS, host 

drivers) supports large volumes, this product is compatible with 
drives larger than 2.2TB.

For additional information, please visit www.cru-dataport.com.

6. Technical Specifications

RAX is a trademark of CRU Acquisitions Group, LLC.  Other marks are the property of their respective owners.  
© 2011 CRU Acquisitions Group, LLC.  All rights reserved.

Limited Product Warranty 

CRU-DataPort (CRU) warrants this product to be free of significant defects in material and workmanship for a period of 
two years from the original date of purchase. CRU’s warranty is nontransferable and is limited to the original purchaser. 

Limitation of Liability

The warranties set forth in this agreement replace all other warranties. CRU expressly disclaims all other warranties, 
including but not limited to, the implied warranties of merchantability and fitness for a particular purpose and non-
infringement of third-party rights with respect to the documentation and hardware. No CRU dealer, agent, or employee 
is authorized to make any modification, extension, or addition to this warranty. In no event will CRU or its suppliers be 
liable for any costs of procurement of substitute products or services, lost profits, loss of information or data, computer 
malfunction, or any other special, indirect, consequential, or incidental damages arising in any way out of the sale of, 
use of, or inability to use any CRU product or service, even if CRU has been advised of the possibility of such damages. 
In no case shall CRU’s liability exceed the actual money paid for the products at issue. CRU reserves the right to make 
modifications and additions to this product without notice or taking on additional liability.

FCC Compliance Statement: “This device complies with Part 15 of the FCC rules. Operation is subject to the following 
two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference 
received, including interference that may cause undesired operation.” 

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 when the 
equipment is operated in a home or commercial environment. This equipment generates, uses, and can radiate radio 
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interfer-
ence to radio communications. 

In the event that you experience Radio Frequency Interference, you should take the following steps to resolve the 
problem: 

1)  Ensure that the case of your attached drive is grounded. 
2)  Use a data cable with RFI reducing ferrites on each end. 
3)   Use a power supply with an RFI reducing ferrite approximately 5 inches from the DC 

plug.

4)  Reorient or relocate the receiving antenna. 

Page 4

Product Name

RAX215DC-XJ

Interface Types & 
Speeds

Multi-lane SAS/SATA 6Gb/s (SFF-8088)

Compatibility

• 

3.5-inch SATA hard drives

• 

3.5-inch SAS hard drives

Operating System 
Requirements

• 

Windows XP, Vista, Windows 7

• 

Mac OS X

• 

Linux distributions that support SFF-8088 connections

Power Switch

2 position:  On / Off

Power Supply

Single 125 watt power supply

Cooling Fan

Dual 40mm exhaust fans

External Material

Steel/aluminum

Compliance

EMI Standard: FCC Part 15 Class A, CE
EMC Standard: EN55022, EN55024

Shipping Weights

18 pounds

Dimensions

429mm W  x  413mm D  x  44mm H

Support

We don’t want anything to go wrong with your CRU-Dataport 
product. But if it does, Technical Support is standing by and 
ready to help.  Contact Technical Support through 
www.cru-dataport.com or call (800) 260-9800.

FOR OFFICE OR COMMERCIAL USE

Summary of Contents for RAX 215DC-XJ

Page 1: ...ture allows the DX115 drive carriers automatically power up seconds after the carrier has been installed without having to push the on off button LED indicators for power fan status drive activity drive ready and error state Superior cooling with dual 40mm exhaust fans Durable light weight steel aluminum construction RTX TM ...

Page 2: ... mates with the connector on the Drive Carrier Board Table of Contents Accessories Quantity RAX unit 1 Power cord 1 Screw kit 1 Quick Start Guide and warranty information 1 1 Pre Installation Steps 1 1 1 Box Contents 1 1 2 Identifying Parts 1 2 Installation Steps 1 2 1 Installing Hard Drives 1 2 2 Rack Mounting Warnings 2 3 Operating RAX215DC XJ 2 4 Usage with Mac and Windows Operating Systems 2 4...

Page 3: ...eady to use If the hard drives are already formatted the RAX can be used right away If the hard drives are brand new or the formats are not compatible with your computer the drives will need to be formatted before being used See the following section Usage with Mac and Windows Operating Systems NOTE A flashing red LED on the bay indicates bay fan failure Call CRU technical support for assistance 4...

Page 4: ...o see it If the drive is already formatted you can identify it easily by its volume name If it s unformatted the Drive Properties Box will say Unallocated and you ll need to initialize the disk before formatting it Initialize the disk by right clicking the Device Properties Box and selecting Initialize Disk d To format the drive right click the Drive Properties Box and select Format e If you are p...

Page 5: ...CRU warrants this product to be free of significant defects in material and workmanship for a period of two years from the original date of purchase CRU s warranty is nontransferable and is limited to the original purchaser Limitation of Liability The warranties set forth in this agreement replace all other warranties CRU expressly disclaims all other warranties including but not limited to the im...

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