How to Build an External Hard Drive Arizona

Steps

1. You must obtain an internal hard drive (from now on referred to as an HDD). The first step is to decide on one of the standard physical sizes for any HDD. If you already have a spare HDD laying around for this project, skip to step 3. There are basically 3 HDD sizes: 1.8", 2.5", and 3.5". 1.8" and 2.5" are the standard sizes for laptop HDD's. Laptop HDD's can be powered by the USB cable, so there is no AC adapter needed. Laptop HDD's are however more expensive than internal PC HDD's, so if you are not worried about size or another power cord, a desktop PC HDD may be the way to go.
2. Choose and purchase a compatible enclosure. Take into consideration the physical size of your HDD, as well as its interface (ATA100, ATA133, Serial ATA150, Serial ATA II, etc.). Decide on a connection type that suits the needs of all computers that will be connected. USB2.0 is currently a good standard, and it will work on any computer or laptop with a free USB connection. FireWire (IEEE1394) is even faster, however it is not as common in all computers yet. Be sure to also compare fan noise levels (if it has a fan, and if the noise level is displayed). For a HDD that will be running whenever your computer is turned on, a fan will be most likely a good thing to have, while HDD's used primarily for backup usually won't need one. Also check to see if there is a power switch on 3.5" enclosures. Without one, you will need to unplug the adapter to power down the drive. For backup this isn't a big deal, but some people using their drive for secondary storage might find it annoying to plug and unplug every time they start and shut down their computers.
3. Unwrap both your enclosure and HDD.
4. Follow your instructions on how to correctly open your enclosure.
5. Set your HDD to the Master setting (or Master/No Slave if one exists). This jumper setting is located between the Molex power connector (4 large round pins) and the ATA/SATA connector. You will see 2 rows of four or five small pins, and a small clip (jumper) connected to 2 of them. Pull out the jumper with a tool such as tweezers or a pencil, and place it in the Master position if it is not already there. A diagram of the different jumper settings can usually be found right on the top label of the HDD.
6. Connect your enclosure's Molex power connector and ATA/SATA ribbon cable to your HDD. Although it would be very hard to accidentally plug these in upside-down, take a moment to make sure that the ribbon cable and power connector are properly aligned before inserting them.
7. Screw the HDD into the enclosure. 4 or more screws were supplied with the enclosure. There will be 4 holes, 2 on each side of the HDD, and corresponding holes inside the enclosure.
8. Take one last look at the inside before you close it. Make sure you did not forget to connect anything. Read your instructions (you HAVE been reading them too, havent you? :) and make sure you covered all of the steps. It will be a pain to open it all over again because you forgot to change the jumper to Master or something.
9. Close the enclosure.
10. Connect the power cord (if one is necessary) and the USB or FireWire cord to your drive.
11. USB and FireWire are Plug-and-Play, meaning that you do not need to turn off the computer before connecting your drive. Connect the other ends of these cords to your computer and surge protector (you ARE using a surge protector, right? :).
12. Turn your computer on if it is not already. Go to My Computer (or Computer for Windows Vista). It is most likely on your desktop, but can also be found in the Start menu.
13. You should see a new device in the 'Devices with Removable Storage' section.
14. Right click on it and select Format (about half way down the list).
15. Format the drive using NTFS for use in Windows (ext3 is good for Linux) as the File System. To read and write from both Linux and Windows, use fat32. You can give it a Volume Label if you wish. Example: External, Secondary, Backup, etc. Be sure Quick Format is not selected. This will allow any bad sectors to be recognized and to be roped off from any data being stored later on.
16. Wait for formatting to complete. This may take longer for large drives.
17. Good Job! You have successfully built your own external hard drive.

Tips

• This wiki can also easily be applied to adding a Zip Drive, CD ROM/Burner, or DVD ROM/Burner. CD/DVD ROM's/Burners will only be supported by the 5.25" enclosure size. This enclosure size is special because it also supports HDD's. A Zip drive is 3.5" so you will need a bezel (sometimes supplied with your enclosure, but otherwise only a few dollars) to fill the void around the smaller drive and secure it to the enclosure. The drives mentioned here all can use a variety of ribbon cables and power connector sizes, so make sure your enclosure is compatible with the hardware you will insert.
• If your new drive has both USB and FireWire, only use one (the fastest one compatible with your computer(s)). If you are using USB, plug your cord in to your computer's USB High Speed (2.0) connector. If you do not have a High Speed connector, or use the wrong one, it will only mean that you will be transferring data more slowly between the drive and your computer.

Warnings

• Make sure your enclosure has no HDD capacity limit (no larger than a certain number of Gigabytes (GB)), or that this limit does not conflict with your drive's capacity. Unfortunately, some older enclosures may have a somewhat low limit (say 132GB) and not advertise this. Be careful! And if you attempt to use a larger HDD, format it to this limit or lower, or you will most likely encounter sector read errors or something :(
• Never force the ribbon cable! There should be some resistance when connecting it, but if it won't go in, the pins may not be lined up correctly. If you do manage to bend the pins (hopefully not too many of them), take time to straighten them using a pair of needlenose pliers.
• You should always use all 4 screws when adding a HDD to any computer or enclosure, and make them tight. HDD's spin at a high RPM, and vibrations may occur if the drive is not properly secured. These vibrations can cause an annoying humming noise, and even damage to the drive over time.
• Keep movement of the drive to a minimum while it is turned on. This once again causes unnecessary vibrations.
• HDD's are very easy to damage when dropped onto a hard surface. The read/write heads can crash onto the platter/s and leave physical damage on the platter, rendering that space on the disk useless as well as making the unit as a whole too damaged for use.
• Be sure to use the "Remove Hardware" icon on the task bar before removing the drive from the USB port, Failure to do so may cause the drive to not work properly.
• Remember that when the hard drive is outside of the enclosure, it is un-protected from static discharge. So do try to keep it from static and the causes thereof.
• Formatting the drive as ext3 will make it unreadable on a Windows system and formatting as ntfs will make it read-only (you can't copy files onto it) on linux systems without the correct software. Fat32 (called vfat in linux) will be read-write on both operating systems.
• Drivers are needed if connecting an external Hard Drive (By USB) on Windows 98 (And 98 SE)

Things You'll Need

• Harddrive
• Drive Enclosure
• USB/Firewire cable
• Computer with available USB/Firewire port
• Screwdriver (most likely philips)
• (optional) Surge Protector

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