• “100% successful. Well done”

    Ross Lindsay Cumbernauld

  • “A company that clearly knows exactly what it is doing, delivers exactly what it promises and does so without any fuss, just excellent service.”

    Howard Wilson Bristol

  • “Over the moon with the service, and the fact that I have all my data back is an absolute lifesaver.”

    John McNiff Pontefract

  • “You expect efficiency as standard and once you've got it, you realise that friendliness is extremely important too. Tierra does really well in both areas.”

    Daniel Batista Millares London

  • “Definitely worthwhile using your services to get back what everyone else was telling me was lost! Those photos and accounts are priceless.”

    Paul Edwards Liverpool

  • "I found Tierra to be clear, concise, straight forward, friendly, extremely professional, competent and highly knowledgeable."

    Callum Donez North East Lincolnshire

  • "Tierra salvaged my backup, with persistence that I can't have imagined."

    Gordon Dodds Cornwall

  • "Tierra stepped in quickly, efficiently and professionally restored all my lost data. Outstanding quick service."

    Jonathan Crombie Crombies of Edinburgh

  • "The level of customer service I experienced from your company was very impressive."

    Diane J Earle London

  • "This company truly understands the concept of time-critical recovery."

    Professor Ben Kneller University of Aberdeen

  • "Thank you for your professionalism, speed and quality of work."

    Anna Mavrogianni London

  • "No hesitation in recommending your company to anyone."

    Phil Codd Doncaster

  • “Thank you again for doing what the first computer repair shop I visited told me was basically not possible.”

    Kenny McLeish Carluke

  • “Tierra rocks!”

    Stephan Ringer London

Recovering Data From Mac Hard Drives

by DRGilly on November 15, 2011

At Tierra Data Recovery we enjoy working with Mac hard drives. We have the technology to recover your critical Mac data and we carry out the data extraction procedure within a Mac environment, this is an important point as the standard Mac HFS+ file system allows for file names that a PC file system would simply not recognise.

Whatever the type of Mac you use we can help, our disk recovery procedures are conducted as follows:

1. We clone your hard drive (this of course may involve physical repair of the drive and or working around unreadable sectors on the drive). The cloning stage is essential because the subsequent analysis and extraction is an intensive procedure that will mean working the hard drive very hard indeed, something that simply can’t be risked with a failing drive.

2. The analysis of the clone is carried out involving multiple scans (looking for both file system entries and looking for raw file characteristics in order to maximise the data recovery).

3. The recovered data is then verified to confirm that it has been recovered intact before sample screen shots of the data and a file list is prepared for the client to evaluate.

4. If, on the basis of the information presented the client decides to proceed we will copy the recovered data to DVDs or external hard drive (depending upon the amount of data in the recovery) in encrypted form if required. We also at this stage invite the customer to request any screen shots of files that may be of particular interest to them.

We believe that this is how a recovery should be conducted and why we consider ourselves to be the people to come to if your Mac hard drive has failed.

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The recent floods in Thailand have seriously affected various manufacturers of parts used by every hard drive maker.

Both hard drive manufacturing plants and the companies that supply them have failed to resist this latest natural disaster and find their factory floors under several feet of water.

We wrote recently of Western Digital’s excellent Q2 results and record-breaking revenue, but we also mentioned how margins for all the big-5 (Western Digital, Toshiba, Hitachi GST, Seagate and Samsung) had reduced further still due to the relentless competition within the industry.

For Western Digital in particular, the blink we referred to has now happened – they face potential Q3 losses of $269 million.

There is a knock-on effect, just in time for the crucial Christmas season on electronic items that contain hard drives, not just the obvious laptops and desktop computers, but also devices such as television hard disk recorders, music players and CCTV systems.

I have family roots in Thailand and my relatives tell me that their own businesses are suffering terribly. Nobody is immune to the weather.

And they will not know the full extent of their losses until the flood water has cleared.

The current supply of hard drives here in the UK is now severely constrained as local supplies have dwindled – down by as much as 60%. The effect (of course) is to drive up the wholesale price, which is reaching 200% for some drives.

There are various UK resellers continuing to make drives available in quantity, but that availability is strictly limited, with the shortages of wholesale supply set to continue into 2012.

If you are desperate for new hard drives, one tip is to consider buying packaged drives, i.e. external drives and NAS-mounted drives which are still available locally in quantity.

Meantime, we anticipate increased strain on companies scheduling swap outs of drives which are nearing the end of their reliable life – there will now be increased pressure to leave these in place and hope they continue to operate for a few more months without issues.

Update: 9th November 2011 – an IT reseller of ours in Edinburgh reported that he was asked £180 for a 1TB drive that was available for £49 just four weeks ago. Checked the price tonight – back down to a “much more reasonable £128″. Have drive prices ever been this volatile?

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Example of a Data Recovery Procedure for a Hitachi HCP725050GLA380 Drive

November 2, 2011

Here’s a brief overview of a particular Hitachi HCP725050GLA380 Hdd recovery case undertaken here at Tierra Data Recovery. The client was in London and had a Lacie 500GB external hard drive. The symptoms described did not extend beyond “the drive doesn’t work”. A collection was arranged. On receipt in our lab the next day the Lacie external [...]

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Hard Drives – Who Sells More: Seagate, Hitachi or Western Digital?

October 21, 2011

Ever wonder which hard drive manufacturer is top dog? Over the last couple of decades the hard disk drive industry has both grown and shrunk simultaneously. The number of manufacturers that can afford to stay in the game has shrunk and they margins they operate on are also considerably thinner even while they continue to [...]

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Seagate Data Recovery

March 26, 2011

Tierra’s ongoing research and development program revealed the range of hard drive recovery problems encountered during Seagate data recovery. Hard drive recovery is needed when a hard disk fails and the data files and folders become either partially or totally inaccessible. Seagate Technology is one of the world’s largest hard drive manufacturers, with 52,000 staff [...]

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What’s Wrong With Cheap Data Recovery?

January 27, 2011

At Tierra Data Recovery we understand everyone would like good cheap data recovery.  Unfortunately like so many things in life – you get what you pay for.  That’s why we provide affordable professional data recovery. Beware of companies that offer low entry prices just to get your drive.  Once they have it the costs can [...]

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What Do I Do With My Failed RAID?

November 23, 2010

This article will cover failed RAID 0 (data spread across multiple drives with no redundancy) and failed RAID 5 (multiple drives, but one drive can fail and RAID is still in operation). But before we get to any specifics you have to be clear in your own mind about the following: “How important is my [...]

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Data Recovery Aberdeen

November 16, 2010

As Tierra Data Recovery discovered one Christmas, fast, professional data recovery in Aberdeen can save thousands of pounds. In 2008 festivities were put on hold when a call from an oil support company explained that a single faulty 40GB hard drive was stopping production on an off-shore platform.  The caller made clear that every minute [...]

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What Should I Expect From A Professional Data Recovery Company?

November 5, 2010

So you’ve lost access to your critical data and now face the problem of which data recovery company to trust with your hard drive recovery. There are a confusing number and variety of data recovery companies out there – many of whom are only acting as agents for others and have no in-house data recovery [...]

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Hard Drive Platter Damage (as discussed on Reddit)

November 4, 2010

A Quick Overview of the Impact of Platter Damage What Is A Hard Drive Platter? The hard drive platters are the storage location for the user data. Today’s hard drives will house anywhere from 1 to 4 data platters depending upon the storage capacity of the drive. They are a sandwich of different materials designed [...]

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