Description
We are the sole supplier of this
product in the UK
RAID 1 (Mirroring) for data protection
RAID 0 or SPANNING for BIG DISK
 |
The RAID controller automatically writes data to both disks at once. If a disk failed the data can continue to be accessed on the other disk drive, and it re-synchronises to a new disk when it is replaced.
The PC is not aware of the RAID function. It thinks it is communicating with a single disk.
|
|
Feature Summary:
-
RAID 1 Mirroring (for data protection)
- RAID 0 Striping, or Spanning (for big disk)
-
Ultra fast eSATA connection
-
Compact unit, solid Aluminium body
-
Temperature Controlled Cooling Fan
- Full 2 Year Warranty
This great value external dual-disk RAID enclosure is for 2 SATA disk drives of your choice.
You can choose to have the disks mirrored (so all data is automatically written to both disks), or the disks can be joined as one large disk, or a combination of both. The dual disk configurations are made by changing jumpers inside the enclosure. See the detailed panel (below). Please note that your data is lost when you switch between different RAID modes, so it must be set before you start adding data.
This product is aimed at PC users with eSATA or USB 2.0 ports. You will get significantly faster performance using eSATA. If your PC motherboard has SATA disk connectors, but not external eSATA ports then we can supply a PCI adaptor plate with an eSATA port that connects through to a motherboard SATA connector.
See our performance graphs below to compare the speed of the unit in different configurations.
Now with latest firmware update to support 2 x 2TB disk drives.
The whole product has a 2 year warranty.
Package Contents
 |
External USB 2.0
RAID dual disk
enclosure
NO DISKS INCLUDED
|
 |
UK mains Switched-Mode power adaptor,
12V/5V 2A
|
|
|
 |
USB 2.0 data lead (1.8m)
eSATA to eSATA data lead (1m)
|
Warranty
2 year, return to base.
Product Specification
| Enclosure Specifications |
|
Model no.: Mapower MAP-TB32CS
Specification: 3,5" 2x S-ATA to eSATA and USB 2.0
Connectors:
- Internal: 2x 7 pin S-ATA
- External: 1x USB 2.0 connector
- External: 1 x eSATA connector
Operating system: suitable for Windows XP & Vista, Mac OS*
*eSATA is not supported on all Macs
Material/ Colour: solid aluminium body / silver & black plastic ends
Accessories:
- USB 2.0 cable
- eSATA cable
- High Quality external transformer power supply (100-240V)
- UK Power Lead
Dimensions 223 x 110 x 85 mm
|
| Disk Performance |
|
Real life performance (typical from a 500GB model):
Copying 2GB of DVD video files onto, and off the disk, in RAID 1 Mirror:
USB2: 23MB/s read, 21 MB/s write
eSATA: 35MB/s read, 50 MB/s write
Copying 2GB of DVD video files onto, and off the disk, in RAID 0 Striped:
USB2: 23MB/s read, 20 MB/s write
eSATA: 56MB/s read, 54 MB/s write
From these figures you can see that only with eSATA do you get the performance benefits of the RAID 0 Striping, as with USB2 the interface is the bottleneck to performance.
|
RAID Setup
Non-RAID: The drives will show up as two independent drives. When using eSATA in this mode only one disk is seen unless your PC has Port Multiplier (PM) Support in the SATA controller.
JBOD - Big Disk Spanning: The two drives show up as one large single drive. Spanning is an array (not RAID) that is written sequentially across the two drives. By itself, it does not provide any performance or redundancy benefits.
You can start with one disk, and when a second disk is added later its free space is automatically added (joined) to the first.
RAID 0 - Striping: Used where speed is the primary objective, RAID Level 0 (also called "striping") is not redundant, and therefore does not technically conform to the definition of a RAID. This form of array splits each piece of data across both of the drives in segments; since data is written without any form of parity data-checking, it allows for the fastest data transfer of all other RAID levels. However, if one drive becomes damaged, the whole array can become corrupted.
RAID 1 - Mirroring: A RAID 1 creates an exact copy (or mirror) of a set of data on the second drive. This is useful when reliability and backup are more important than data capacity. The available capacity to the user will only be as large as a single drive but when one of the hard drives fails, it can be replaced and the data rebuilt automatically.
SAFE33 or SAFE50: A combination of RAID Mirroring and Big Disk Spanning. Either 33% or 50% of the capacity is used as a Mirrored disk, and the rest as a big disk.
For example, a SAFE33 setup with 2 x 300GB disks will have one 100GB Mirrored volume and one 400GB spanned volume. The 100GB volume would be for critical data you want to protect against HW failure and the 400GB for when you don't need such high reliability.
The enclosure has an LED indication at the front to show the status of the hard drives. When a drive fails, the corresponding LED will turn red.
|
Product Tour
The photo below shows how compact the unit is on a desk.
The LED panel enables you to see status of power, disk access, failures, and rebuilding or verifying of a RAID array.
Supplied in a neat retail box:
|
Home » Enclosures » TB32CS
