Fusion Drive Data Recovery

Fusion Drive Data Recovery

Urgent Warning: Fusion Drive always consists of two separate disks. If you want your data back you must get both parts. We’ve heard a number of reports that users with failed Fusion Drives are only given the Hard Disk back when receiving Apple repairs. On its own, the hard drive is not enough to recover all data in original condition. This is especially true if FileVault encryption is used.

HDD + SSD = Fusion Drive
HDD + SSD = Fusion Drive.

What is Fusion Drive?

Fusion Drive is Apple’s version of a hybrid solid state & mechanical disk. It combines a small fast SSD with a large slow hard drive to achieve a balance between cost & performance. Frequently used files are moved to the SSD, and old stale data is sent to the slow hard drive. This is all taken care of automatically behind the scenes. Unless you dig into the terminal, you wouldn’t even know you had two separate disks inside the Mac. Fusion Drive is  part of Apple’s Core Storage system. It is somewhat similar to Linux LVM as a volume management system.

What Fusion Drive is not

Fusion Drive does not use the SSD as a cache for files but actually moves data from one disk to the other. This is important, as both disks are required for full recovery.

Why does Fusion Drive exist?

At launch, and even now, the cost for large capacity SSDs is way higher than the cost of an equivalent hard drive. The problem is that SSDs offer huge benefits to the user experience. When you use an SSD, you hardly ever have to wait for things to load. The computer boots up within seconds.

Hybrid drives aim to bridge the gap between solid state and mechanical disks. An iMac with a 3TB Fusion Drive comes with some of the benefits of SSDs, but much less cost. As the cost of SSDs fall, the need for Fusion Drive will eventually disappear. Apple has shown with their current lineup that they’d much rather go all-SSD where possible. Current iMac Pro & MacBook Pro both use 100% SSD internal storage.

Anecdote Corner

We’ve had two recent cases where a user has brought a “Fusion Drive” to us for recovery, but actually only had the hard drive part. Apple had given the damaged hard drive back after replacement, but reused the SSD when creating a new Fusion Drive. This user only had a few GB of data so the Hard Drive hadn’t even been used yet. All the data was stored on the SSD which was now overwritten.

The majority of Fusion Drives we’ve seen have a Seagate ST3000DM001 3TB hard drive combined with a 128GB blade SSD.

If you need help with a Fusion Drive:

Contact Us Now...

For a fast reply from a real person.

OCZ Z-Drive 4500 PCIe SSD Recovery

OCZ Z-Drive 4500 PCIe SSD Recovery

I published a post back in 2016 highlighting the problem we were seeing with Sandforce controllers on single SSD drives. We have now also come across this PCIe 3.2TB SSD that uses a Marvel controller as well as Sandforce controllers to control banks of data chips. Like the others, this device has I/O errors which we believe is caused by the Sandforce controllers. This PCIe SSD device requires proprietary drivers for it to be recognised in the bios and OS, regardless of what platform it is run on. Although we can communicate with the device via an SSD Utility provided by Toshiba, there is no access to the user data.

OCZ Z-Drive 4500 PCIe SSD
OCZ Z-Drive 4500 PCIe SSD

If you’ve got a problem with an OCZ SSD:

Contact Us Now...

For a fast reply from a real person.

Seagate Ultra Slim Portable Drives

Seagate has another batch of dubious drives in circulation at the moment. These slim disks are often used in external Ultra Slim Portable enclosures, but also appear in laptops. Visually these disks have a new-look design that seems a bit strange at first glance. For starters, instead of a solid metal top cover, these disks only have a partial top lid, sealed by nothing more than the printed label. If you decided to peel the sticker from one of these, you’d be unsealing the top cover and allow dust to fall straight onto the disks. This is BAD.

Aside from the visual differences, these disks also feature a number of new firmware changes that are barriers to recovery. The industry standard recovery tools only have limited support at this stage but the good news is that we can already recover from most common issues.

D.S.A.A (Dead Shortly After Arrival)

Another fun feature of these disks is the way that some of them just fail after a couple of weeks light use. As always, we only see faulty disks here, but it’s always a surprise to see a disk that’s only a few weeks or months old on our desks.

Something we’ve seen more than once is a customer that buys an external drive, copies a load of data onto it, wipes their computer, and then finds when trying to load the data back on that the backup disk has failed. Always remember to take two separate backups when erasing your main disk!

Variability

Another annoying trait with these disks is that they are manufactured from lots of different internal parts. This makes it a nightmare to locate suitably matched heads when we need to replace them.

List of Affected Models

  • ST1000LM035
  • ST2000LM007
  • AKA Rosewood Drives

Seagate Ultra Slim Portable Drives

Seagate SSHD ST500LM000 Recovery Update

I have good news for our customers, our developers have been working hard and have produced a solution to the firmware failures of this model hard drive. I posted a blog alerting our customers back in March 2015 when we started to see the problems arise. A solution was tested just before the end of last year and we now have a process that fixes these issues.

We also have firmware fixes and recovery solutions for other Seagate Hard  Drives.

Meltdown and Spectre Data Recovery

Meltdown

More than enough has been written about the Spectre & Meltdown CPU vulnerabilities so I won’t go over them directly here. If you’d like more info, I’ve included some links at the end.

My interest is more with the trouble caused by the intended fixes. Despite CPU manufacturers testing the fixes for some months, in certain circumstances they are causing random reboots, and other performance problems.

Safely Remove

Spectre
To “Safely Remove” a disk is standard practice to avoid filesystem corruption. In simple terms, the computer stops writing to the disk and then you’re safe to unplug it. In the case of a random reboot, the computer doesn’t get the chance to finish with the disk.  A crash at a critical moment can damage the filesystem and render the machine un-bootable. Even if the system can recover itself, if you crash enough times your chances of trouble increase. It’s hard to trust a system that could randomly reboot at any moment.

A Solution?

Until we get fixes from the manufacturers, there’s not much else we can do. Now would be a really good time to make sure your backups are working and up-to-date. These fixes could take a while to stabilise, and in the meantime you could be one random reboot away from data loss.

Sources

Add Another Time Machine Disk

If you need to add or change your Time Machine™️ backup drive, the process is pretty simple. Plug in a new disk and make sure there is nothing on it that you need. In most cases Time Machine will ERASE the disk before using it! You have been warned.

Now might be a good time to find the disk on your desktop and rename it to something obvious like “backups” for example.

Next, open Time Machine Preferences from the Time Machine menu. If you don’t have the Time Machine icon near the clock, you can also find the settings within “System Preferences”.

Open Time Machine Preferences
Open Time Machine Preferences
Click Add Or Remove Backup Disk
Click Add Or Remove Backup Disk
Select the New Disk
Select the New Disk

Click the “Use Disk” button, and Time Machine will start making a new full backup to this new disk. This may take a few hours.

SQL Database Data Recovery In Hampshire

Despite falling out of favour in giant tech companies, there are not many businesses in the UK that don’t use some sort of SQL database. Whether that’s a website running WordPress & MySQL or an intranet hooked up to an MSSQL DB, SQL is still everywhere. Even iPhones use SQLite to store Notes and other data inside apps.

SQL Database Data Recovery In Hampshire
SQL Database Data Recovery In Hampshire

On Disk Problems

Sometimes the fault lies with the underlying disk, Virtual Machine, or RAID array that the file is stored on. First we solve the disk problem and then extract a working copy of the database.

Inconsistency

Another issue with database files is that they can go corrupt silently, and you might not notice until hours, weeks, or months later when a crucial process fails.

Our SQL recovery tools, alongside our hard disk & RAID recovery services can help get your lost databases up and running again with minimal fuss & downtime.

  • Peter MorganThese guys are amazing!! Really helped us out in an impossible situation with a corrupted SQL database which even the software provider couldn’t fix. Not only did they fix the corruption but they did it quickly and super professionally keeping us informed at every step of the way. I have used Dataquest many times and over the years and they always deliver. 4th July, 2017

Common Applications We Recover SQL From

  • Web server MySQL, PostgreSQL
  • Windows Application MSSQL

Why You Should Never Open A Hard Drive

See our video below to find out why you should never open a hard drive.

Transcript

Instead of a needle, hard drives use tiny magnets to read and write data. The heads don’t actually touch the disc.

But you’d only see that if you got close

Super close

The heads float just three nanometers above the disk

In comparison, a spec of dust in the air is 166 times bigger than the gap.

It would be like trying to kick a football through a gap the size of an ant

So if that giant spec of dust can’t fit through the gap, it will hit the read head

Bouncing it into the disc spinning at over 100mph

And scraping away chunks of disc within seconds

Up close the tiny scratches look like mountains

The heads can’t get past the damage so just scratch it even more

Until there’s nothing left but dust

This is what we call a head crash

Why You Should Never Open A Hard Drive

And This is Why You Should Never Open a Hard Drive! (Unless You Have a Cleanroom)

Contact Us Now...

For a fast reply from a real person.

How To Troubleshoot Western Digital Elements External Drive

How To Troubleshoot Western Digital Elements External Drive

Elements is the basic brand of external drives from Western Digital. These no-frills disks are usually great value, but when they fail have a few quirks that can make recovery a little awkward. For example the small pocket sized drives usually have a soldered USB port that cannot be removed. There is also automatic encryption, even if you’ve never set a password.

Symptoms of WD Elements Failure

  • LED permanently lit / blinking
  • LED not lighting at all
  • Clicking / ticking noise
  • Disk is not formatted. Do you want to format it?
  • Unable to see your data in Windows or macOS
  • Unable to copy or read files

Troubleshooting Ideas

If you have problems with a WD Elements drive, you should make some checks to see if you can narrow down the fault. Be aware that opening the external drive case will probably void your warranty with Western Digital. If there is important data on the drive you should seek professional data recovery advice before you try anything.

That’s the warning out the way, so lets have a look at some troubleshooting.

  1. First check all cables are plugged in securely, and not damaged or frayed. If you have an identical spare cable you can try it, just be gentle.
  2. If trying a different power supply, make sure the voltage matches exactly. Amps can be higher but not lower.
  3. There is little point dismantling a WD Elements drive, as there is usually no SATA connection inside. Even if you manage to bypass the USB Port, your data will be encrypted.
  4. It’s worth plugging the external drive into another computer. If it seems to work you should copy the data off straight away. The drive could still be faulty & fail again soon.
  5. Whatever you do, don’t dismantle the actual hard drive. Hard drives are built in controlled clean-air environments and even the smallest spec of dust can cause permanent damage to the drive.
  6. These external drives are quite unique in the way they work. It is not possible to replace the circuit board (PCB) on these disks, as your PCB contains important encryption keys. On the offchance that a replacement PCB worked, your data would be scrambled anyway without access to specialist decryption tools.

If you are looking for a data recovery service for your external hard drive have a look at our external drive recovery services.

Troubleshoot WD My Passport External Hard Drive

Troubleshoot WD MyPassport External Hard Drive

Unlike most external hard drives, WD (Western Digital) My Passport drives are more than just a simple wrapper around a regular hard drive. WD have integrated the USB port straight onto the main circuit board. This means if your external drive fails, you can’t easily remove it to attach to a PC.

Symptoms of WD MyPassport Failure

  • LED constantly flashing / blinking
  • LED not lighting at all
  • Clicking / ticking noise
  • Disk is not formatted. Do you want to format it?
  • Unable to see your data in Windows or macOS
  • Unable to copy or read files

Troubleshooting Tips

If you have problems with a WD My Passport drive, you can make a few checks to see where the fault lies. Be aware that opening the external drive case will probably void your warranty. If there is important data on the drive you should seek professional data recovery advice before you try anything.

That’s the warning out the way, so lets have a look at some troubleshooting.

  • First check all cables are plugged in securely, and not damaged or frayed. If you have an identical spare cable you can try it, just be gentle
  • There is no point dismantling a WD MyPassport drive, as there is no SATA connection inside.
  • It’s worth trying the external drive on another computer. If it seems to work you should copy the data off straight away. The drive could still be faulty & fail again soon.
  • Whatever you do, don’t dismantle the actual hard drive. Hard drives are built in controlled clean-air environments and even the smallest spec of dust can cause permanent damage to the drive.
  • These external drives are quite unique in the way they work. It is not possible to replace the circuit board (PCB) on these disks, as your PCB contains important encryption keys. On the offchance that a replacement PCB worked, your data would be scrambled anyway without access to specialist decryption tools.

If you are looking for a data recovery service for your external hard drive have a look at our external drive recovery services.