|(1)||What is Thunderbolt?
Thunderbolt is a connection method that carries both data and display signals over a single cable. Thunderbolt's dual-protocol architecture allows it to connect computer components and monitor displays. Thunderbolt 1 has as data transfer rate of 10Gbps, and Thunderbolt 2 increases it to 20Gbps.
|(2)||Can I use bus power with an eSATA hard drive?
eSATA does not provide bus power; therefore, an eSATA hard drive will require a power source in order to function. However, the Oyen Digital USB, eSATA portable hard drive uses an innovative eSATA bus power cable, which allows the drive to be powered from a eSATA/US combo port.
|(3)||How do I format an external hard drive on a Macintosh computer?
To format a hard drive using MAC OSX
Note: * For the best performance, we recommend using Mac OS Extended (Journaled). However, if you will be using the drive with both Windows and a Mac, select MS-DOS (FAT32) or exFAT.
|(4)||Can I share my external hard drive between a MAC and PC?
If you intend to share files between a Windows and MAC computer, the easiest option is to format the drive as exFAT or MS-DOS using the Mac. This will create a partition that is compatible with both Windows and MAC.
Another otpion is to use a 3rd party software product that allows hard drives formatted in the Macintosh file system (Mac OS Extended, HFS+) to be used on Windows computers. The following program allows this capability:
|(5)||How do I format an external hard drive on a Windows computer?
** Note: If
the drive was previously formatted, the old partition will need to be deleted before
reformatting for Windows. To delete a partition, do the following:
|(6)||Why does my computer show that the external hard drive has less capacity than advertised?
A 1TB drive will appear as 931GB after formatting and connecting to a host system. A 500GB drive will appear as 465GB, etc. This is standard in the hard drive industry. The hard drive number is decimal but the computer system shows a binary number. But both numbers reflect the same number of bytes; 1K is 1000 bytes in decimal but 1024 bytes in binary.
|(7)|| My USB powered drive intermittently disconnects and occassionally a clicking sound is heard.
If you are connecting to the front USB ports on a desktop, you should instead connect the drive to USB ports on the rear of the computer. In many cases, front USB ports will not be able to provide full power. Also, iIf you are connecting to a USB Hub, make sure it is a powered Hub (one that uses an AC adapter). If you still have trouble, it could be a sign of a failing hard drive. Please contact our support department for assistance.
|(8)|| How do I use the external hard drive to boot in Mac OS X?
To use any of our hard drives as boot drive for Mac OSX, perform the following steps:
How can I create multiple partitions on a drive using Disk Utility on a Mac?
Open Disk Utility (Applications > Utilities) and select the disk in the left column that you want to partition. Click the Partition tab. Choose the number of partitions from the Volume Scheme menu. Click each partition and type a name for it, choose a format, and enter a size.
|(10)|| What types of RAID modes do your products support?
There are many different types of RAID modes. The RAID modes that are implemented in our line of RAID enclosures include the following:
RAID 0 (Striping) : Provides increased performance by writing alternating blocks of data (referred to as the stripesize) to 2 or more drivessimultaneously. Read performance is also improved since data is read from all drives at the same time. No redundant information is stored and failure of a SINGLE drive will cause all data to be lost. The number of drives in a RAID 0 array is sometimes also referred to as the stripe width. Total capacity is equal to the stripe width times the smallest drive.
RAID 1 ( Mirroring) : Provides redundancy by writing all data to 2 or more drives. RAID 1 provides no increase in write performance (it may even be a bit slower). Read performance tend to be faster than a single drive, but not as fast as RAID 0. RAID 1 provides excellent data security since ALL drives has to fail before any data is lost. Total capacity is equal to the smallest drive.
RAID 5 (Striping with distributed parity) : Data and parity is striped across 3 or more drives. Parity is distributed to each drive. RAID 5 is the most widely used RAID for servers and other high performance storage solutions. Any single drive can fail without data loss, ie. at least two drives must fail before any data is lost. Total capacity is equal to the number of drives minus 1 times the smallest drive.
RAID 1+0 (Striping and Mirroring) : Sometimes referred to as RAID 10, this mode combines RAID 0 and RAID 1 by striping a mirrored volume. RAID 1+0 has better data security than RAID 0+1.
JBOD (Just a Bunch Of Drives) : Not actually RAID, 2 or more drives, which can be of any size, are recognized as separate drives by the OS. Since JBOD provides no performance increase and reduced data security, it is seldomly used.
SPAN (Large) : Spanning combines multiple hard drives into a single logical unit. Unlike Striping, Spanning writes data to the first physical drive until it reaches full capacity. When the first disk reaches full capacity, data is written to the second physical disk. Spanning provides the maximum possible storage capacity, but does not increase performance or safety.
|(11)|| Why won't my computer recognize my RAID system?
Windows 2000, XP & MAC OS 10.2 (& older) do not support partitions larger than 2TB. In order to support 2TB+ partitions, you must use Windows Vista, Windows 7, or Mac OS 10.3 or higher. Please note: Windows XP 64-bit and Windows 2003 support 2TB+ when using USB & eSATA, but are limited to 2TB when using FireWire.
|(12)|| How should I format my Mobius 5-Bay RAID system?
We strongly recommend performing a Low Level Format of the entire volume after configuring the RAID mode. This will write zeroes to all sectors of the RAID and define where the tracks and sectors of the RAID are located, which will result in optimal performance.
To perform a low level format using Windows:
To perform a Low Level Format using Mac OSX:
|(13)|| Does the RAID system remain connected to the host computer and usable during the automatic mirror rebuild?
You still can access the data when the RAID is rebuilding, but since it is rebuilding, the transfer speed will be slowed down. Please note: The typical rebuild time is 50GB to 100GB per hour.
|(14)|| I want to remove a drive from the RAID unit and install it in another enclosure for access to the files. How can I do so?
You can do so for RAID 1(Mirroring) operation. It is important to follow the correct procedure in order to get the data copied from the source HDD to the target HDD.
What eSATA ExpressCard do you recommend?
For either Windows or Mac, we recommend Sonnet Tempo ExpressCard34, part # TSATAII-E342P or Sonnet Tempo Pro ExpressCard32, part # TSATAII-PRO-E34.
Can I change my RAID mode array after I have put data on it?
The stripesize or stripewidth of a RAID 0, RAID 0+1, RAID 0+1, or RAID 5 array can't be changed without deleting and recreating the RAID array. This will cause all data to be lost.