Tips about data recover from external hard drive

With the development of large data era, there are varying kinds of mobile storage devices, including mobile hard disk, U disk, SD card, TF card, memory stick, etc. Users tend to choose a larger capacity mobile hard disk for data storage, but the mobile hard disk can encounter failures with ease in the course of using, which will have a certain impact on the user's data security.

Now, there are some tips for data recover from external hard drive. Users can use it to avoid the mobile hard disk failure and protect the hard disk data.

1. Choose a large manufacturer of mobile hard drives. We should be careful not to choose inferior products, as the poor quality products could encounter with the problem of failure easily. A large manufacturer owns a relatively perfect online repair resources and could provide better after-sales, which the small manufacturers can not offer.

2. As the mobile hard disk is used to exchange computer data temporarily. So do not remove the mobile hard disk or connect a long term on the computer and try to shorten the working hours of mobile hard disk as possible to extend the life of mobile hard disk.

3. Do not have too much partition in the hard disk, one or two partitions is enough. Therefore the system will greatly shorten the time for data restoration and improve the efficiency of the hard disk.

4. Defragment the mobile hard disk according to the frequency of using, to shorten the disk retrieval time. Pay attention, the frequency of disk defragmentation can’t be too high, probably two or four times every month for avoiding damage to the hard disk file.

5. The Power supply lines must not be mixed. Mobile hard disk power supply line has a strong special features, they all have different interface voltage. The mix of power supply lines could burn the box or hard drive and lead to data loss.

6. In the transmission of documents, you should compress the file size before transmission, to reduce file transfer time and improve the efficiency of the hard disk.

7. Be gentle to the hard drive. You should hold it gently and not beat the hard drive. At the same time pay attention to temperature, as high or low temperature will lead to damage to the hard drive. Pull out the hard disk after the hard disk has been exited.

8. Stop doing any operation on the hard disk if you suffer from a data loss. The first thing you should do is to use some data recovery software for recovery if the loss is not serious. But if the loss is serious, be sure to go to a professional data recovery company for data recovery.

We can use data recovery software for data recovery in many situations, like hard disk logic failure caused by data loss problems, such as accidentally deleted, mistakenly formatted, etc., .

Things you should know about RAID data recovery

In the event of a data loss situation, we will hear some terms related to data recovery during data recovery process after suffering from data loss. One of them is the RAID disk array data recovery, so, whats’ the real meaning of RAID data recovery?

The full name of RAID is a redundant array of inexpensive disks. Its initial purpose is to combine multiple smaller hard drives into a large-capacity "logical disk" or disk array, to improve hard drive capacity and performance.

Three characteristics of RAID technology.

1. The RAID technology can strip the data on the hard disk to block the access to the data, reduce the mechanical hard drive seek time and improve data access speed.

2. The RAID technology can read several hard drives in the same array at the same time, to reduce the mechanical hard drive seek time and improve data access speed.

3. The RAID technology can realize redundancy protection of data by image or information of Parity check restoration.

Maximum storage capacity

In fact, Maximum storage capacity refers to the limit of the ability to store the data capacity in the disk array device. Generally speaking, the maximum storage capacity equals the maximum number of hard drives multiplied by a single hard disk capacity the disk array device could supported. Typically, small disk arrays can support hundreds of gigabytes of storage capacity, which suitable for small and medium-sized businesses to share data as storage devices.

Average transfer rate

Average transfer rate means the stable speed the data read/transfer from the disk array to an external host or other places, not the burst rate.

Rotational speed of Hard drive

The rotational speed of Hard drive actually refers to the hard disk motor spindle rotation speed, the higher speed it runs, the greater internal transfer rate will reach. Currently, the common IDE interface hard drive’s speed could reach to 5400RPM and 7200RPM, and SCSI interface hard drive speed can able to reach 10000RPM or more. If there don’t have a lot of data storage in small companies, IDE interface hard drive’s speed of 5400RPM or 7200RPM hard drive will be OK, but if there has a large Data requirements, the best choice is the SCSI hard drive and it also has a advantages of hot-plug.

Cache

Each disk array device is equipped with a certain amount of memory as a cache for using, and the cache can be expanded by users. In the disk array device, the common memory type has SDRAM, FLASH, etc., different disk arrays equipped with different memory capacity in the production.

Numbers of single disk

Stand-alone disk data refers to the number of the SCSI hard disk or IDE hard drives a disk array products can accommodated.

Built-in hard disk interface

The disk array products is a "container" of various hard disk, so there are many hard drive interface in the internal integration.

External host channel

The disk array is worked as a data storage device for network users, therefore it requires disk array to provide an interface, and the connection link to server host or other network devices. We call this interface as the host channel or external host channel.

If you suffer from data loss of RAID disk , the best choice is searching helps from professionals, and if they do not grasp, It is best not to remove the storage device by yourself, like senior engineers in Hdata Recovery Software, avoiding second damage to the data.

The best data recovery software ever

The second data recovery is based on hard disk failure after the first data recovery failed. Many customers may find some non-standard data recovery company for data recovery for saving the cost. In fact these companies are neither informal, nor professional, in order to accumulate experience, some companies may even disregard the customer's data security, take the customer's hard drive to experiment.

Therefore, If the data is very important, in order to protect the data security, you’s better consult as much companies as possible, for carefully selecting the data recovery company.

Here are some tips about the reasons of data recovery failure.

1. Unprofessional engineer. 

An unprofessional engineer could result in fault judgment, which could lead to faults still exists and damage the intact part of the the hard disk. For example: An unprofessional engineers could misjudge a obviously circuit power supply failure of hard drive for motor damage, and replace the motor or do disc error operation.

Solution: Find a senior professional engineer for help, he could based on the specific problems of the fault disk analysis, use exclusive method, hardware analyzer and professional testing tools provided by hard disk manufacturers for judging and then repair it.

2. Disc got contaminated by the low-quality environment.

Solution: Doing data recovery in a clean room. In addition, using nano-disc cleaning fluid and high-fiber nano cleaning cotton swab, mainly used to remove surface dust, fingerprints, minor scratches and other pollutants on the disc.

3. Using the incompatible accessories with faulty disk

Solution: Use compatible accessories which can be provided by formal data recovery center.

4. Got scratches on the disc

Solution: Find a formal data recovery center which owns scratch repair technology. data recovery success rate is very high, as long as the scratch is not an important part of the disk data storage.

These are the advice from senior engineer in Hdata Recovery Software, the best professional data recovery software company ever.