A hard drive is a device for permanent or long-term storage in computers.

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258 views

OS X breaks if I apply HFS compression to the whole volume. What do I need to exclude?

OS X breaks if I apply HFS compression to the whole volume. (It won't boot.) What do I need to exclude? I've been able to compress large parts of it, but then I had to restore after I compressed ...
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1answer
414 views

New harddrive on a macbook pro 13 inch, dvd drive doesn't work, what do?

What I don't have: An USB dvd drive What I have: Another working, up to date, Macbook (with snow leopard). purchased Mountain Lion on the app store A desktop PC A 4GB usb stick. A USB harddrive ...
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0answers
250 views

Unable to create a DIY Fusion Drive using a 3 TB hard drive [closed]

I'm trying to make a Fusion Drive with a Samsung 830 256GB SSD and a 3 TB 3.5" HDD (connected via SATA to my late 2012 Mac mini). I'm able to create the Fusion Drive, but when I start to install ...
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0answers
771 views

Howto resize copied HFS+ partition above original size (320GB)?

I am running OS X Lion and my laptop has a 320GB drive. I bought a larger drive (750GB) and cloned the entire device from the old drive to the new using GNU ddrescue. After cloning everything looks ...
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0answers
46 views

disk copy software, imperfect disk

I didn't find this question, but if it is here let me know. I have a problem disk. I want to copy as much as possible from it before I scrap it. But there are many thousands of files, so manually ...
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0answers
197 views

MacBook Pro disk failure

Just a few months ago, I bought the latest 2011 MacBook Pro. Now, a few months later, I have a problem. It seems like my notebook is rejecting my hard drive (which is an SSD). How it all began: ...
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1answer
2k views

Disk Utility won't let me create or resize partitions

My MacBook Pro 13" Late 2011 is running Yosemite. I am trying to install a Linux distribution on a partition of my hard drive. I used Disk Utility to resize the main partition on my hard drive and it ...
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3answers
628 views

For bad and/or marginal blocks on hard disks, can anything be more effective than a single pass of zeros?

There's a good discussion in Apple Support Communities – Disk Utility: for bad blocks on hard disks, are seven overwrites any more effective than a single pass of zeros? (2011-04-21) A highlight: ...
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4answers
3k views

Macbook's harddrive free space changes seemingly randomly

Over the last few days my hard drive has gone from a few GB of free space, to zero KB, absolutely full. I then deleted about 1GB of files, and now the free space has gone down to 640MB, and then went ...
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3answers
1k views

New hard drive not recognized

I swapped the original 80 GB hard drive for a new 640 GB Samsung HM64JI hard drive. It is not recognized after booting from the 10.5 Installation DVD on Macbook 2.1 with recent EFI updates installed. ...
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2answers
363 views

Ipod classic was corrupted, so erased everything off it using disk utility

So my ipod classic was corrupted, and i read somewhere that you could use disk utility to erase everything off it (i read somewhere that this was nessesary). My computer now does not register it as an ...
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1answer
308 views

Do SSDs need to be defragmented?

I'm not sure if solid state drives need defragmentation. Can anyone tell me if this requirement goes away with the new technology?
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3answers
32k views

Why is my hard drive still full after deleting files?

I'm new to Mac. I have deleted many files from my applications folder, downloads, music, etc. to make clean Mountain Lion installation. After installing Mountain Lion I can still see in About This ...
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2answers
248 views

How can I verify that my Photos and iPhoto library are hard linking to the same disk data?

So I've discovered Apple's mystical implementation of hard linking with the new Photos app library and the old iPhoto library. Although Finder reports that both take up a significant and similar ...
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2answers
771 views

On Macbook Pro, how to tell if my hard drive access speed is a bottleneck to my current computer performance?

I'm considering giving my 2010 Macbook Pro an upgrade. Whether upgrading its 500 GB hard drive to SSD drive is a priority depends on how much it bottlenecks the computer's performance. Is there a ...
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1answer
12k views

Attempting to revert to Mac OS X Mavericks, now can't get out of OS X Utilities!

Here is my situation: I have an MBP Retina 2013 with an SSD drive which I ran with Mavericks with no problems for about almost a year now. I recently upgraded to Yosemite which seemed to work well ...
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3answers
11k views

A flashing folder with question mark

I have a rather strange problem with my MacBook Pro (13-inch, Late 2011). Whenever I start my computer I see a flashing folder with a question mark. I know this is supposed to be a common problem ...
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1answer
1k views

Can a Time Machine drive have several partitions, or does Time Machine need the whole HDD to itself?

Is it possible to partition and external drive an use only one of the partitions for a Time Machine backup? Or does Time Machine need its dedicated hard drive? (I've never used Time Machine before.) ...
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2answers
2k views

Can the 2011 Mac-Mini (not the Server Edition) Support an Additional Hardisk, SSD?

Is it possible to add an additional HDD or a SSD to a 2011 mac-mini (no the server edition) in addition to the 500GB HDD that comes with the computer? If so, are additional parts required? Are these ...
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3answers
5k views

Should I get a SATA 3Gb/s or 6Gb/s hard drive for my MBP?

If I am planning to upgrade my Macbook Pro 13" (Late 2011) with a 7200RPM Hard drive, should I get a SATA 3Gb/s or SATA 6Gb/s drive?
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3answers
815 views

Is is possible to replace the CD drive in a 17" macbook Pro with a SSD/second HD?

Basically the Title: Is is possible to replace the CD drive in a 17" macbook Pro with a SSD/second HD? I'm looking at buying a 17" MBP, and I am having a hard time deciding if I want a HD or SSD. ...
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3answers
2k views

Macbook: Flashing Folder with Question Mark At Startup

So, I've been hearing a clicking sound coming from my macbook for about a week now. The last few days the system has just been locking itself up when I try to type anything. Now, at startup I see ...
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2answers
387 views

Set up 2 FW800 JBOD units as a RAID 1(mirror)

I've got 2 GMax external drive enclosures, each one takes 2 3.5" SATA disks (up to 1TB per disk), configured to appear as a single 'JBOD' unit. I use FW800 out of the MacBook Pro into one unit, and ...
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1answer
364 views

Enable writing to NTFS harddrive with non-standard name on Mac

I have a lot of NTFS hard drives back when I used a Windows PC. I'm trying to write to these drives with my Macbook Pro on OSX Yosemite 10.10.2. I'm going through this tutorial. I have to write this ...
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2answers
210 views

Simple Low-Cost Network Backup System - Drobo? Alternatives?

I'm hoping to graduate from manually copying important files to multiple external desk or portable drives; affordably. We have 3 Macs and an iPad or two. I have just now learned about Drobo, who as I ...
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1answer
416 views

Why is cp command 4 times slower than copying in Finder in OS X 10.6?

I accidentally stumbled upon this issue: Copying a 119 MB zip file took 4 times longer in Terminal (cp) than in Finder! I copied a file of 119 MB size in Terminal with time cp file.zip file2.zip ...
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4answers
1k views

MacBook Pro updating to SSD

I have a 15-inch, Late 2011 macbook pro, i mainly use for programming, and occasionally watch a movie or two. Its getting a bit sluggish, and i reckon its time to update the HD to a SSD one. So my ...
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2answers
4k views

Macbook Pro boots successfully when using hard drive in USB enclosure but doesn't boot when connected internally

Apologies for the long question. I will keep it as simple as I can. Last week my Macbook Pro (13-inch, Mid 2010) started to act strange. It started when I tried to open Skype and received an error ...
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3answers
423 views

If I put my old mac hard disk system drive with bootcamp in a USB caddy, after replacing it with an SSD, will it appear as 2 drives when plugged in?

I'm going to replace my MacBookPro system drive / hard disk with an SSD. I will then re-install MacOS and Windows via bootcamp. The original drive will be put in a USB caddy to be used as an external ...
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2answers
700 views

Backing up HDD to restore it on another SSD

I want to switch out my current HDD for a SSD in my Mac. However I don't want to reinstall the OS and all my software. How can I backup (image) the entire HDD to restore it later as image with Disk ...
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1answer
119 views

difference between disk size in console vs disk utility

Console results df -h disk utility results What explains the large difference here in capacity as well as used memory? And which is more reliable.
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7answers
10k views

Partitioning secondary internal hard drive failure

Looks like my 2nd HDD became a brick. I tried to partition it via Disk Utilities/booted from recovery partition/diskutil to no luck! I got vague/strange errors such as: unable to unmount, or: ...
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2answers
1k views

Find out what process is using my HDD

I know it's the spotlight indexing process, but it's been killing my HDD for the last few days and will not stop. The CPU usage is rather low but fs_usage shows that the mds process is doing something ...
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2answers
339 views

CCC Lion HD to larger Drive, Advice

I'm running CCC (carbon Copy Cloner) beta 3.4.4-b1 I would like to change the Hard Drive in my iMac and wanted to know if there are any hurdles, steps I should take in cloning my current Hard Drive ...
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3answers
10k views

Recommendations for USB 3 ExpressCard/34 [closed]

There is a proliferation of portable and cheap portable USB 3 drives nowadays and nothing of the sort for Thunderbolt. I was wondering if it is worth my while getting an ExpressCard/34 USB 3 card for ...
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1answer
118 views

Apple SSD TSC 128 GB on Windows desktop

My MacBook Pro 2011 is having problems. When I turn it on, I hear the chime but the screen is black. I am planning to send it off to Apple since I have AppleCare. But before I do that, I need to ...
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3answers
40 views

How can I swap the contents of my two MacBooks?

I have two MacBooks (an old one mid 2009 with a 150 GB drive (128 GB used) and a newer from 2011 with a 300 GB drive (30 GB used)) and a 1 TB Hard Disk. What is the easiest way to move the content ...
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1answer
30 views

Software to duplicate external hard drive formatted ExFAT

I have an external hard drive with a 2.9TB ExFAT partition that I keep my photos and other media on. (ExFAT so that I can also see and edit my media on Windows computers.) I just bought a second hard ...
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1answer
410 views

New “EFI boot” drive appearing after reverting OS X drive to HFS+

Months ago I performed a clean install of Yosemite, and as you can read elsewhere, drive was formatted as Core Storage. Later on I partitioned and put on Windows 8.1 through Bootcamp. Worked well for ...
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3answers
581 views

MacBook Late 2008 SSD Upgrade

I have the late 2008 edition of the unibody MacBook. It has a built-in HDD which became unbelievably slow. The other tech-specs are: Now, since its not too bad regarding the processor and the ...
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3answers
2k views

How to recover data from MacBook which won't startup properly?

My 2012 MacBook Pro running OS X 10.7 Lion would not start up properly (it has the doomed flashing white question mark on a grey folder). I have tried the following: couldn't access Safe Mode; holding ...
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2answers
2k views

Clean install of Yosemite problem

Hopefully someone can help me. I've tried so many options. I purchased a used MacBook Pro, late 2011 model. The person I purchased it from said he wiped the hard drive, but when I got home, it seems ...
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3answers
1k views

How to synchronize contents of two external drives?

I have two external hard drives (ExFAT formatted) which I need to keep in sync. Specifically, drive B must mirror the contents of drive A and drive A must not be modified. How can I do this without ...
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1answer
193 views

Hard Drive Space Discrepancy?

Anyone know why there would be a difference between the number shown at the bottom of the hard drive icon and the number of available space in '7.6 GB free of 272.42 GB' in the screenshot below?
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3answers
6k views

How can change hard disk name (not partition)

The title is self-explained: I want to change the hard disk name (not the partition). I am not able to do it with Disk Utility. Any solutions? I'm on Yosemite
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2answers
788 views

Why my Mac OS X Startup Disk used space is around 30 GB

I just bought a new MacBook Air 128GB SSD. This is my first MAC. As on Windows, I want to create a separate partition for my Data. The Default partition shows around 30 GB used space. Why is it so? I ...
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1answer
2k views

External Hard-disk showing Input/Output error

I have a 1TB External Hard drive which I'm currently not able to access. When I open the External drive in Finder, It shows it's empty. When I use the option to "Get Info", I get the dialog box ...
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1answer
197 views

How to access the internal hard disk with full permissions?

My Mac does not start anymore. The hard disk is stranded :-( Macs and gravity are not good friends. When starting on a backup disk, I manage to see some contents of the internal disk Macintosh HD, ...
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1answer
41 views

Run OSX as normal off external HD?

I'm continuing to hatch a plan to keep running whilst emergency repairs are carried out on my MBP. Further to a question I posted on Monday I'd like to know if anyone could shed light on whether this ...
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2answers
478 views

Broken hard drive or operating system

My MacBook Pro froze today. When the system is restarted, it goes directly to the OS X Utilities window. None of the alternatives seem to work. I don't have a Time Machine backup, so there is no use ...