Where’s my fusion drive?

A week ago my iMac’s fusion drive failed. Despite trying to fix it myself through software the reality was that it was looking very much like a hardware failure. I booked it into the Apple Store for a repair.

Less than a week later I got a call from the Apple Store saying it was fixed and I could come and pick it up. Having driven up to the store and come home, I got my iMac out of the car and set it up. I switched on my iMac. 

The Apple Store had replaced the failing hard drive, but that was it. They had left it pretty much, from an OS X perspective as I had left it with them. The SSD was still visible, but at least now I could see the 3TB physical drive. I had to reset the fusion drive. Luckily I knew how to do this via Terminal and the diskutil resetfusion command.

I did think that this was poor, as the last time the drive failed they had reset the fusion drive and installed OS X onto the iMac. 

Having reset the fusion drive, I then set about formatting the drive and installing OS X. Decided to bite the bullet and install Big Sur, knowing full well that I had applications that I liked that I wouldn’t be able to use. Key for me was Fireworks, but I did have Photoshop which I could use instead..

Installing Big Sur didn’t take long.

Then I used the migration assistant to start moving files from the external hard drive to the iMac. This took much longer than I thought it would.

Finally after many hours it looked like my iMac was back. iMac

Getting it repaired

Well after the failure (again) of the Fusion Drive in my iMac I took it to the Genius Bar of my local Apple Store. They confirmed my diagnosis that the Fusion Drive had failed.

I had a few options.

I could replace the SATA HDD myself with another SATA HDD, which I did consider. I could replace the broken SATA HDD with a new SDD drive.

I could get someone else to do that.

However upon consideration, taking a 2014 iMac apart isn’t a simple job and would require replacing the adhesive for the glass LCD panel. So wasn’t sure I wanted to go down the road. Also the cost of a 2TB or 3TB SDD was quite expensive, though buying a 3TB HDD myself would be cheaper than what Apple was proposing to charge.

I did consider before taking it to Apple to get someone else to do this, but they would charge £84 first just to diagnose the problem, so would then charge (like Apple) for labour on top, as well as the replacement HDD cost.

What the Apple Store was proposing wasn’t excessive and so decided to go down that road.

So now they have my iMac for a week, well hopefully less time than that.

Top Ten Blog Posts 2018

Over the last twelve months I have published 19 posts.

The post at number ten was from ten years ago, and contained a (now deleted) YouTube video on the new Skyfire browser for your Windows smartphone or PDA. Skyfire discontinued its Skyfire Web Browser in 2014.

The post at nine was now a rather dated post from ten years ago about how Scrabble’s owners were going to sue Scrabulous.

The eight most popular post was another ten year old post which was about when Apple was offering some free TV shows on iTunes.

The seventh post was from 2012 when my HP Photosmart printer died. My printer is dead! was a sorry tale about how replacing the ink cartridges on the HP B110a resulted it in destroying the print head.

The post at number six was Comic Book Fonts which was about the amazing comic book fonts from Comic Book Fonts.

The post at number five was wondering Where are my Comic Life Styles? I found them.

The fourth most popular post was about the free wifi (or lack of) on my holiday, Haven no wifi.

Polaroid Pogo printer

The post at three was about Dusting off the Pogo my old Polaroid Bluetooth pocket printer. Still going strong.

The second post was about when my iMac Fusion Drive Failed and had to have it replaced.

So the most popular post on the blog was my post about QR codes on chocolate bars, Cadbury QR Coding and Twirling was published in 2015 and was one of many posts I published on the use of QR codes back then.

Cadbury Twirl Bites QR Code

Tech Stuff: Top Ten Blog Posts of 2017

Over the last twelve months I have published 26 posts, many of these were about my return to fibre. So it is nice to see that the tenth most popular post on the blog this year was from nearly a year ago.  We will have fibre in “12 months”!  I said back then that according to BT Openreach we would have fibre within twelve months, I was slightly sceptical, but nine months after publishing that post I did get fibre.

new fibre cabinet 25

The ninth post was about when my iMac Fusion Drive Failed and had to have it replaced.

The post at number eight was another post about my fibre journey, Still checking… was when the cabinet was activated, but alas wasn’t accepting orders.

The seventh post was from 2012 when my HP Photosmart printer died. My printer is dead! was a sorry tale about how replacing the ink cartridges on the HP B110a resulted it in destroying the print head.

The post at six was about  Dusting off the Pogo my old Polaroid Bluetooth pocket printer. Still going strong.

Polaroid Pogo printer

The fifth post was how I don’t like BT FON which was originally published in 2011.

The post at number four was wondering Where are my Comic Life Styles? I found them.

The third most popular post was about the free wifi (or lack of) on my holiday, Haven no wifi

The post at number two was Comic Book Fonts which was about the amazing comic book fonts from Comic Book Fonts.

So the most popular post on the blog was my post about QR codes on chocolate bars,  Cadbury QR Coding and Twirling was published in 2015 and was one of many posts I published on the use of QR codes back then.

Cadbury Twirl Bites QR Code

Fusion Drive Failed





Sometimes Apple technology impresses me with it’s reliability and stability and then sometimes it doesn’t…

I have a 2006 Intel iMac, one of their early Intel models and the 250GB HDD is working well today as it did when I first got it. My experiences with other iMacs that I have used at work have been equally impressive. I once did though experience hard drive failure on one of my PowerBooks, but that was because I dropped it….

However when it comes to my home 27” iMacs I have been less lucky.

iMac

My original 2009 27” iMac hard drive failed and was replaced by Applecare, only to fail again a few years later. With this failure I ignored the drive and replaced it with an external drive. Eventually the whole system failed.

My new 27” iMac which I got in late 2014 came with a 3TB Fusion Drive. Fusion Drive is Apple’s name for a hybrid drive, which combines a hard disk drive with a NAND flash storage (solid-state drive of 24 GB or more) and presents it as a single Core Storage managed logical volume with the space of both drives combined.

Last month I came to my iMac I found the prohibitory symbol.

Mac prohibitory symbol

When you see a circle with a slash symbol instead of the Apple logo, it means your Mac couldn’t find a valid System Folder to start up from.

I did try reinstalling OS X by using OS X Recovery, but that failed…

Checking my backups I realised that there were some files missing from the back up disks, so using target disk mode (and another Mac) I attempted to recover the files from the failing hard drive. I managed to get some, but unfortunately I couldn’t get them all.

I was thinking of using DiskWarrior (which had helped with my previous iMac hard drive problems, however version 4 which I have is not compatible with OS Sierra. After a while though it became impossible to mount the drive using target disk mode. Disk Utility also failed to do anything except spin the beachball.

The other symptom I saw was the separation of the SSD from the Fusion Drive, this was not good news.

Taking the iMac to the Genius Bar, they were unable to enter diagnostic mode and using a network startup drive, were able to check that the iMac was working fine, and that the problem was with the Fusion Drive.

I had considered using a data recovery firm, but in the end with the majority of the data in my backups I let the Genius Bar attempt to re-build the Fusion Drive, which didn’t work, so they had to replace the drive with a new one.

The next step is to re-build the iMac from scratch, which is nice to do now and again, but is a bit if pain if you have really slow broadband. Really looking forward to getting fibre back in the next two months!

I know I have some missing data, but I think I have the important stuff. One thing I am now considering is getting some cloud based backup which has got a lot cheaper since I last checked it out.

I am slightly disappointed that the Fusion Drive failed after just over two years. For a variety of reasons I didn’t have AppleCare with this iMac, and it is something I will certainly consider for future iMac purchases.