We see a lot of portable hard drives that don’t spin up when plugged into a USB port. All brands of hard drive can be effected including Hitachi, Western Digital and Seagate. The problem can be caused by power loss or sometimes due to mis-plugging of the USB lead. This causes the internal read heads to sit on the disc instead of parking on the ramp at the side.
The only way to overcome this problem is by taking the hard drive into our clean room to replace the damaged heads with good ones. This allows us to copy the data from the drive and store it on our server.
The repaired hard drives are not suitable to be reused after this sort of work as they will not work correctly, or fail after a very short time.
Newer WD External drives come with password protection and 256-Bit encryption as standard. Even if a password is not set the encryption is still applied to the data written to the drive. The 256-Bit encryption is controlled by ROM on the USB controller. On portable USB powered hard drives the encrypted ROM is on the actual hard drive. On external desktop drives the ROM is on the interface controller within the external case.
Make sure you keep hold of the external case the hard drive was in. Although not always needed, it could be important later on. If you’ve lost data, have a look at our Western Digital Data Recovery service.
Encryption is a process to protect data by using sophisticated mathematical functions. Data is scrambled when written to the drive. This data is then not readable by an unauthorised person. When data is read back from the drive by an authorised person it is then converted back into readable data. Usually authorisation is provided by a password of some sort.
When using encryption, there are few things to watch out for
If you forget your password, you will be locked out of your own data. Be careful.
If your hard drive starts failing you could lose access to all your data.
You need regular backups if using encryption, as it is usually uncrackable.
Data is encrypted when the computer is off, but if someone accesses the disk while powered on they can access the data the same way you can.
Ideally, if you plan to use encryption try to speak to somebody knowledgeable about the system you have. The way a Mac handles things is very different to the way Windows does, which is different again to the third party options.
I have lost count on the amount of times we have received hard drives for data recovery from Mac customers, who are not aware of the Time Machine back software. Time Machine has been preinstalled in every version of OS X since 10.5. This software is easy to setup, and once the first backup of the internal hard drive is complete, it will then carry on backing up as you create new data.
As a small business or personal user it is ideal for your everyday backup needs.
This hard drive was from a Macbook Pro. As you can see in the image, loss of data was caused by a severe head crash. The damage is so severe you can actually see through the top foil layer to the glass platter beneath. Another good reason why Mac users should make sure they backup regularly.
This Seagate ST31000333AS 1TB drive suffered a head crash resulting in severe media damage. The contamination caused by the damage can be seen on the disc surface as well as the internal filter. The filter is usually white but is now silver metallic in colour as a result of the contamination. The customer did not have any indication that this was going to happen.
We at Dataquest have been aware of the problem with 1TB Seagate drives for some time. It is pleasing to see that Apple are also recognising the problem and are offering their customers a free swap out. These drives are mainly seen in iMacs, but you may also get them in the Mac Pro so make sure your back ups are up to date.
Apple have announced it’s new and most advanced operating system to date. Due to release in July and with over 250 new features, including Multi-touch Gestures. OS X Lion is a snip at around £21, surely the buy of the year so far.
Dataquest’s specialist data recovery services incorporated in Novatech’s bespoke IT & Telecomms hardware solutions. Novatech can now offer their customers the complete worry free IT Solution. In partnership with Novatech, Dataquest will provide their customers with 24/7 Data Recovery support.