RTX220 QR - Manual
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 4-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: 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.
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.
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 RAX 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 A 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
RAX425DC-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
Data Connectors
One (1) SFF-8088 mini-SAS connector
Compliance
EMI Standard: FCC Part 15 Class A, CE
EMC Standard: EN55022, EN55024
Shipping Weights
30 pounds
Product
Dimensions
428mm W x 89mm H x 450mm D
Support
We don’t expect 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
cru-dataport.com/support or call (800) 260-9800.
FOR OFFICE OR COMMERCIAL USE
