Showing posts with label hard drive data recovery. Show all posts
Showing posts with label hard drive data recovery. Show all posts

Thursday, 17 May 2012

Hard Drive Data Recovery in Brisbane

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It is inevitable that if you have lived in the modern world for any amount of time, you have used and own a computer. The advent of this technology has seen the last two decades offer new and revolutionary technology that has forever changed the way humans work and communicate. However, as with almost technology, as things become more advanced, the more there is to go wrong. At the core of most of these technologies is a component known as a hard disk drive (HDD). This is one of the most crucial parts of a computer, and they are also found in iPods, tablet computers and even cars. Despite how common they are, hard drive data retrieval Brisbane as well as recovery is very difficult and time consuming. In business, there are usually central databases that help store information. If these fail, it can cause major economic, privacy and legal repercussions. In Brisbane, data recovery is a is easily accessible, however preventative measures are the best option. 

Hard drives operate by reading and writing data to a very fast spinning disk, known as a ‘platter.’ When a hard drive fails, it can be a huge problem, because essentially, everything that has ever been saved on it is lost. It can happen at any time, and most people don’t understand if and how it’s possible to recover their data when this happens. database recovery  is not an easy task, and can often end up costing hundreds or thousands of dollars, depending on the amount of data that needs to be retrieved. There are many providers that can do this, such as Kroll Ontrack Australia, which provides expert recovery database services and hard drive recovery tools.

The best method of database recovery – is quite simply preventative action, which means back up your data. There are countless ways to do this, such as buying an external hard drive, or online backup services such as Dropbox or Microsoft Skydrive, which offer free and effective backup. Investing a small amount of time and money can save thousands, as well as untold stress and angst over losing data and needing hard drive recovery tools or database recovery. There are also several signs that a hard disk drive is going to fail, such as slow performance on the computer, and the computer making strange whirring and grinding sounds. If this happens, it is important to back up your data as quickly as possible and take it for repairs or replacement. For Brisbane data recovery and hard drive repair, industry leading Kroll Ontrack is highly recommended.

 

 

Sunday, 25 September 2011

Inside the Hard Drive Data Recovery Process

There's a lot that goes on behind the walls of clean rooms and laboratories in a data recovery facility. Although data recovery software can salvage data off hard drives that mechanically work, specialised tools are needed to fix disks that have physical faults or damage.

The two most common mechanical hard disk crashes are caused by problems in the drive's electronics or the read head. A drive's read head is the device that reads and writes data onto the disk's magnetic surface. Problems often come up when the drive vibrates in such a way that causes the head to touch the magnetic surface of the disk, potentially damaging data in that section. Fortunately defective heads often only affect a small portion of data. Electronic failures are a much less severe and often just require new electronic controllers or components.

So what's the actual hard drive data retrieval process? Firstly a drive must be sent to a crashed hard drive data recovery provider such as Ontrack Data Recovery for assessment. This establishes the damage done to the disk, what data is recoverable and the expected cost.

Engineers run through a range of tests each getting more complex to establish what is wrong with the drive. Firstly, the drive is connected to power to test it's electronics. If the drive doesn't power up the electronics are replaced, then the drive is dismantled to reveal the head that reads data from the disk's magnetic surface.

Often these drive heads can become defective if they've been hit or dropped suddenly. Data recovery on a hard disk takes this into account, and can be discovered in one of these drive examinations.

It's crucial that the drive is opened in a clean room as any dust particles that fall on the drive can be damaging. Hard drive data retrieval labs have powerful extraction systems and  ionizers to ensure this doesn't happen.

Once the disk has been manually repaired it's attached to specialised software that analyses the packets of data on the system. The software comes back with how possible data recovery will be on the hard disk, and clones the data onto a new working drive.

Once the drive is cloned onto the functional counterpart lab software is used to reconstruct drive partitions and structure. Fortunately when hard drives delete files they're never really deleted so often a large portion of data found in a crashed hard drive data recovery process can be salvaged.

If your data is important and valuable, you should not only keep good backups but ensure your disk is not fragmented. Large fragmented files often cause problems for data recovery as they're spread far and wide across the disk. Regular defragmentation will not only speed up your computer, it'll make files more retrievable should disaster hit.

Crashed hard drive data recovery is a specialised process that needs a specialised company. Ontrack Data Recovery provide high-level data recovery services that will retrieve the maximum possible amount of data off your disk. You can find out more about our services here.

Save Your Data From Crashed External Drives

External hard disks are a good way to take data with you on the go. As prices drop, they've become a very popular computer accessory. It's important to remember that external hard drives have a finite lifetime and will crash sometime in the future. Although regular backups are important, you may need to recovery data from a crashed external hard drive sometime in the near future. Fortunately with improvements in hard drive technology there have also been improvements in data recovery practices and software. There are a range of tools and services available that make recovering data from a crashed external hard drive very easy.

There are two reasons behind an external hard drive crash, and it's important to ascertain which applies to your hard drive so you can work out the most appropriate way to recover data. A mechanical failure is when the physical workings of the hard drive have failed. This requires a lab recovery by Australian data recovery specialists. When you plug your hard drive into your computer it should show in your list of connected devices, if it does not then the failure is most likely mechanical.

If you can still see your hard drive but it has no data on it then the failure is a logical failure, where the hard drive's index has been lost or corrupted. Data can often be recovered after a logical failure using Ontrack data recovery software.

Recovering Data Using Software

When an external hard drive suffers a logical failure generally no data is deleted, rather the file that maps out where that data is on the drive is lost or corrupted. The file is required to show computers what is on the hard drive and where it's located. Ontrack data recovery software Easy Recovery Pro is an advanced solution that scans the crashed disk, detecting and rebuilding the data structure and files. Depending on the size of your disk the data recovery process can be running for a matter of days.

Easy Recovery Pro includes a range of advanced tools that will improve the chance of your data being retrieved. The system includes sophisticated disk diagnostics and support for raw recovery of over 485 file types.

Easy Recovery Pro is part of the larger Ontrack data recovery software suite, supporting modern operating systems and data storage technology. It's available for online purchase here.

Laboratory Data Recovery

When an external hard disk has crashed due to a mechanical problem data can only be recovered in a laboratory by data engineers. Using specialised tools and techniques, engineers are able to dismantle the disk in a clean room then read and reconstruct the data stored on it. Ontrack Data Recovery are Australian data recovery specialists that provide fast, professional data recovery services for both businesses and consumers. Using an Australian data recovery provider means you data will be recovered quickly, and you'll be kept informed throughout the whole process.

Monday, 22 August 2011

VMware recovery Explained

VMware virtualisation software has made waves in the computing world. Since its 1999 introduction, VMware has evolved into a virtualisation system used from the individual level, to multinational enterprises. Often the whole IT system or service of an organisation is staked on VMware's reliability and backup capabilities. When so much is at stake, it's important to have a recovery plan in place to deal with potential disaster.

As VMware recovery is a very complex procedure, it's all too easy to become bogged down in confusing acronyms and technical jargon that doesn't help you prepare your IT systems for data loss or failure. Let’s cut through the jargon and pin down the key terms you need to know about VMware recovery.

VMFS File System Corruption

VMFS stands for Virtual Machine File System, the method by which VMware organises and stores data. VMFS file systems are used by two popular VMware products: ESX server and the flagship VMware Infrastructure.

VMFS is a very flexible file system that doesn't work like a standard hard drive, and is cluster-based. It can extend over many servers and can grow in size without reformatting or loosing data.

In the unlikely event a VMFS file system is corrupted, it's important to have data recovery done by experts. The file system is quite complex and its cluster-based nature means recovery is often not as straight forward as simple HDD recovery.

VMDK Corruption

The VMDK file type may be more familiar than VMFS. The acronym stands for Virtual Machine Disk and is essentially a separate software-based hard disk on top of a physical one. The VMDK file type is used by VMware to store a virtual operating system, and contains all of the files, system settings and programs within that virtual layer.

VMDKs can be corrupted for a few reasons, ranging from software issues on the host computer to physical drive issues. Fortunately VMware recovery services can often recompile VMDK files, or retrieve data from within them.

RAID Failure

RAID (Redundant Array of Inexpensive Disks) failure can cause data loss regardless of it being within a virtualised environment. However, if your virtualised operating system is running off a RAID storage solution then specialised VMware recovery is the way to go. RAID failure generally happens when the RAID controller has a problem with its redundancy patterns. A physical failure of one of the disks in a RAID array may also cause data loss.

Accidentally deleted files

It's not an uncommon problem on any computer system, but when a file has accidentally been deleted within a virtualised operating system traditional data recovery techniques will not always work.

As virtualised systems use the VDMK file type to store all their data, it is sometimes possible to retrieve lost files from the file system without scanning the hard disk.

Be ready for VMware data loss

It's always a good idea to review your data security and backup systems regularly to circumvent the need for data recovery. However, if problems do occur within your VMware system it's worthwhile contacting Ontrack data recovery and inquiring about their range of VMware recovery solutions.

Sunday, 14 August 2011

RAID 5 Data Redundancy is your Data’s Insurance Policy

IT systems have become a critical consideration for any modern business, and leave many questions up in the air about how to best protect hard drive data. There are a multitude of technologies available today to help prevent hard drive failures bringing your business to a grinding halt. Ensuring you have a good data redundancy solution running in your IT system helps insure your data is backed up and secure.

RAID 5 stands for ‘Redundant Array of Inexpensive Disks’ and is a popular way to reduce the risk of hard drive data loss. It is a system wherein a minimum of 3 physical hard drives are connected to a controller that spreads data across the disks, improving speed and allowing for the potential failure of one disk within the array. A RAID 5 controller automatically creates a second copy of all your data across the connected drives, creating a more secure data storage solution. A RAID 5 storage system has a few primary advantages for your business, being data redundancy, access speed and good storage size.

What is Data Redundancy?

Data redundancy is a term that’s casually thrown around when talking about computer data recovery and hard drive data storage, but what does it really mean? Data redundancy occurs when the same data appears multiple times across a disk or storage solution. It means there is a spare copy of stored data which can be accessed in the case the original files are lost or corrupted. In a RAID 5 system, parity is used to create data redundancy and allows for data recovery from hard disks. Parity is the technical term for the information that allows for RAID 5 recovery. It is stored across multiple disks, and can be used to rebuild lost data on a failed drive.

Faster Access to Your Data

A RAID system doesn’t only allow for RAID 5 recovery techniques, it will also improve the speed at which you can read and write files. As the data contained in a file is spread across multiple disks, each disk has a smaller piece to store. As the disks in the RAID 5 array work in tandem, data can be accessed at double or triple the speed of a standard single hard drive. If you’re working with large unwieldy files, the speed at which a RAID 5 array can work will be a huge advantage to your workflow.

Less Risk, Hardly Any Compromise on Size

Compared to other data redundancy solutions, RAID 5 allows you to keep your hard drive data more secure without needing double the space. Unlike RAID 2 which keeps a plain duplicate of all your files and doubling your storage needs, RAID 5 uses a complex algorithm to logically spread data and parity across multiple disks. Although some extra space is needed for this process, it is efficient and much less than the more simplistic RAID 2 setup. For instance, if you have three 500gb disks in a RAID 5 array you end up with a total space of 1.5TB, but usable space of 1TB due to data redundancy. A more simplistic RAID 2 system will only give you access to 750GB out of 1.5TB of disk space.

RAID 5 Recovery

Although RAID 5 storage systems are more reliable than just a single hard disk, they can still fail. In such cases, it is a good idea to contact a computer data recovery expert. RAID 5 recovery is a complex procedure that involves aligning the different data blocks within your hard drive data array. A computer data recovery expert will be able to help you retrieve data from a failed system with a smaller risk of corruption than if you were to use do-it-yourself software. Ontrack Data Recovery provides advanced data recovery services in Brisbane, and all over Australia. Our wide range of Brisbane data recovery solutions can help you get your business’ data back promptly.

Keeping Your Computer Secure is a Breeze with Regular Backups

We all have crucial data on our hard drive that would be horrible to lose. Be it work documents, financial records or media collections, a lot of our valuable time goes into data creation every day. It is a good idea to have a regular backup system installed on all your computers, saving on complex hard drive recovery procedures if your hard disk was to ever fail. We’ve put together some straight forward tips to assist you in putting together a backup solution that works for your business or computer setup.

Use Partitions to Virtually Segment Your Hard Disk

Establishing a partition schema is the simplest way to backup and protect your data from malicious software or corrupt systems. When combined with external backups, partitions provide an extra level of data security and ease hard disk data recovery. Fundamentally, a partition is a virtual, sealed-off space on a single hard disk. There can be many different partitions on the one disk, all with different data and formats. From your operating system’s perspective, a partition acts as an entirely separate hard disk despite it being on the same physical media.
If you use a Microsoft Windows computer, it is advisable to separate your operating system data and your personal files. By creating a standalone partition for your documents you protect them from corruption within the operating system and any virus that may go through and delete system files. There are a range of free partitioning and hard drive recovery tools available for Microsoft Windows, such as Symantec’s PartitionMagic.

Reduce Data Loss with Regular External Backups

Backing up your important data to a DVD, CD, or Hard Drive external to your computer is a popular way to ensure you always retain your files regardless of what happens to your computer. External backups can help when your computer or hard disk is physically damaged, lost or stolen. External backup solutions can minimise the need for hard disk recovery. Fortunately, Windows 7 and Max OS X both provide good automatic backup tools out of the box. You can use these systems to backup your documents and (optionally) system files to an external hard drive or DVD. With the prices of external hard drives dropping, they’re becoming a more attractive option to streamline a backup system.

For extra data security, cloning your hard drive on a regular basis allows for easier system restoration and can supplement other hard drive data recovery methods to get your system up and running exactly as it was before the crash.

Backup to the Cloud to add Extra Versatility

Cloud storage services have made a big entrance into the technology market over the past couple of years. Personal backup services like Dropbox, and enterprise solutions such as the Amazon Web Services (AWS) mean backing up data to remote data centres can be easily integrated into any workflow. Cloud backups add the extra security of data redundancy, where your data is stored simultaneously across multiple locations, often in different countries. Your online data is protected from damage to physical premises, and with data redundancy remain backed up even in the event the provider loses a data centre.

All of these solutions are a great way to ensure your important data is safe from damage and technical failures. However, there are cases where a backup simply isn’t recent enough, so often hard disk recovery services are a good way to restore important data to the moment it was lost. Contact Ontrack for an overview of our hard drive data recovery services.