When talking about computer terms, you would definitely hear the word external hard drive very often. But for people who are not into the computer world, they would definitely ask what that thing is. An external hard drive is the same type of hard drive that is located inside the CPU of a computer or the laptop except that the hard drive is mounted in a separate casing and is found outside the CPU. It also functions the same as the computer does like storing information permanently or temporarily. The only difference is that it is connected to the computer via a USB or Fire wire cable and most operating systems will automatically recognize the hard drive allowing the users to use it freely to their hearts content.
But there are several types of external hard drive in India and when one is buying, they prefer to have the best external hard drive there is so the tendency is they look at the brand and the price of the hard drive without even looking at the features. Though most computers can recognize the hard drive but not every hard drive contains the same features as there will always be a difference in everything that is why the hard drives where divided into two types, the portable external hard drive and the desktop external hard drive. Regardless of the type, all the external hard drives are just having the same.
Two Types of External Hard Drive
Portable External Hard Drive
These hard drives are usually 2.5” hard drive in a slim line enclosure that is why they are easily carried thus the name portable. Though this hard drives are portable, it is also breakable and sensitive so extra care is needed when handling them. The portable external hard drive for mac is commonly USB Powered, which means you can just plug it to the USB port of the computer and you can use it. The only problem with this is that when all the ports in the computer or laptop are used then you have to remove one of the connected USB port so that you can plug the hard drive to your computer or laptop in order for you to use it.
Desktop External Hard Drive
Desktop external hard drives are normally 3.5” hard drives mounted into a larger casing than that of the portable hard drive. The device may also have fans integrated to assist in keeping it cool during use which extends the life of the disk drive. This external drives are designed mostly for the use of storing without being portable. It has a memory capacity that can reach up to 500 GB but now there are devices designed to have a 1 terabyte storage capacity. These are connected through the use of USB as well and it can be carried by other people also but the power supply should always be carried as well in order for it to be used in other computer devices.
Understanding External Hard Drives
If this drive isn’t spinning up, putting it in the freezer for about an hour will usually get the drive spinning again so you can copy needed files before the drive warms up again. A hard disk is a set of rigid magnetic disks aligned ona spindle, which is rotated by a motor. Remove the drive from the Laptop/Notebook and attach it to the IDE-cable of a Desktop computer. In our simple disk, the disk doesn’t have to do much. The first thing you want to do is run a disk utility like Norton disk doctor or wddiag (if it’s a western digital drive) to verify whether the drive is working mechanically or not.
A rotary structure moves a stack of heads relative to concentric tracks on the surface of the disks. You’ll need to find out how to remove the drive from your computer, normally with modern Notebooks/Laptops the drives are removable and it’s just a screw or two to get them out. In particular, it must just wait for the desired sector to rotate under the disk head. If it is a master boot record problem, sometimes running disk/mbr will correct the problem. The entire apparatus is contained in a tightly sealed case. Don’t forget – always power down your computer before you remove hardware. This wait happens often enough in modern drives, and is an important enough component of I/O service time, that it has a special name:rotational delay(sometimes rotation delay, though that sounds weird).
It could also be a virus, and a program like F-prot will look at the drive as a physical unit. A micro-controller takes care of steering the motors and translating the higher-level protocol that a computer uses to communicate with the disk to and from a bit stream, which is processed by specialized hardware (a DSP or FPGA) and fed to the heads. As soon as you’ve managed to remove the drive you’ll need a Notebook-to-IDE-adaptor which you can get at any computer store for under $15. Jumper your drive asa slave and connect it via this adaptor to any Windows computer.
Trouble Shooting External Hard Drives
Prior to describing the hardware in any detail, we will identify how we classify possible failures associated with a system. First, unplug the drive from your USB port and try plugging it into another USB port on your computer. If after doing this the drive does not spin up at all (you can tell by feeling for vibration on the drive), then either the drive or the power adapter has failed. Sometimes the fix is easy and sometimes it is a bit more complicated. We divide the failure types into generic failures and specific failures.
- If it works in one USB port but not another, you may have a dead USB port.
- You will need to replace the power adapter to proceed with troubleshooting.
- In this article, I’ll try to go through the different solutions on Mac and Windows for fixing this issue.
- Generic failures will be addressed in the next section, with the rest of this chapter focusing on specific failures.
- If you’ve plugged the drive into a USB hub, try connecting it to the computer instead.
- If after replacing the power adapter, the drive still doesn’t spin up, then you will need to replace the drive.
How the drive is formatted and what file system is being used is the most common reason why drive is not recognized. Generic failures will, however, be an ever present possibility any time a problem is encountered. Some USB hubs won’t provide enough power for your external drive to function. You will find links for data recovery and warranty replacement below.
There are quite a few explanations for this problem & I have compiled this guide to address almost all of the known issues & help a user get rid of these problems for a smoother computing experience. The rare exception (but growing more common) is a 7mm thick “slim” external USB HD in both Toshiba and WD in certain models where the SATA bridge has been incorporated into the HD controller board, to save time of mfg. and money in production costs. A hard disk works with any Molex connector from the PC’s power supply. If the drive does appear in the lower window (for example, as Disk 1 or Disk 2), the drive’s partition may be corrupted. Install the drivers onto your computer via the driver installation CD (it came with the Iomega hard drive). Older Windows XP computers require this installation.
Making Windows Recognize the Drive
Current production (late 2013 and on) Toshiba 2.5″ “Canvio” and most USB WD drives have incorporated the SATA card into the HD controller boards which eliminate a quick and easy fix on this issue. Make sure the plug is fully inserted. If, in the box to the right of Disk 1, 2, etc, you do not see Healthy or something similar, and if the colored stripe is black, the drive is Unallocated. Once the installation CD is inserted into the computer, follow the prompts to complete the installation process, then restart the computer. Some USB cables split into two USB connections for your Mac and lead to the single USB connection on the hard drive.
Molex connectors require a lot of pressure to fully insert, and even more pressure to remove, so don’t be afraid to push hard or pull, as the case may be. Or, the stripe may be blue or green indicating a partition is present, but there may be no assigned drive letter, which means the partition may be corrupt or may be a type not supported by Windows. Avoid connecting the hard drive to a USB hub as this occasionally prevents the computer from detecting the drive. This is known as a USB power cable. Just make sure you handle the plastic connector, and do not try to push or pull the wires.
Some reasons why a drive doesn’t show up in My Computer.
Or it may indicate a formatting labeled as RAW. Instead, make sure it is hooked up directly to the computer system. This provides more power for the hard drive, and enables it to work directly from your Mac. Next, you want to check for any pending updates under Windows Update. The most important way to save your data from inaccessibility is regular backup. You can pick one up for around £5. Some of the updates might be related to the drivers and therefore needs to be installed on the computer. Cloud storage is the latest technology to save all the digital data in logical pools. So check if you need to update your drivers. There are various cloud backup services available that provide backup solution for both Windows and Mac platforms, such as Drop box, Google Drive. Visit the related website and search for the latest drivers available for the hard disk model and install it on the computer and check if that resolves the issue.No Comments on A Comprehensive Guide For External Hard Drives in India