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

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How to reset a Seagate FreeAgent Go Mac External Hard drive to use with a new Mac?

I have a 500 GB external hard drive that I want to use with my new Mac (OS X Yosemite). I simply want to clear the external drive of everything that was on my old Mac (I don't want to transfer any ...
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2answers
64 views

SSD upgrade for mid 2012 MBP

I recently started getting performance issues with my MBP while running apps like Xcode and Eclipse. A quick diagnostic of the system showed that it thrashed over 458k times. Vendor Specific SMART ...
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1answer
219 views

How to securely erase an arbitrary SATA drive, utilizing the drive firmware to do so?

The problem with using Disk Utility or dd if=/dev/zero to erase a disk is that: It applies unnecessary wear to SSD drives. It sends the drive's capacity worth of zeroes over the drive's interface. ...
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1answer
249 views

SSD upgrade for 2013 21" iMac?

I have got an iMac (EMC 2638) here, with 1TB hard drive. I have read that there is a PCIe SSD slot on those iMacs as well, originally for the fusion drive. Is it possible to upgrade my iMac with such ...
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1answer
38 views

Can I use Firewire or Thunderbolt cable with this hard drive dock?

I'm an external hard drive docking station: http://www.amazon.com/Thermaltake-BlacX-eSATA-Docking-Station/dp/B001A4HAFS/. I'm currently using the USB2.0 cable that comes with it. I wonder if I could ...
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2k views

Disk Utility vs Carbon Copy Cloner - How to clone your drive with Apple's built-in app

What is the point of using commercial apps like Carbon Copy Cloner when disk utility can also clone your drives? This article here ...
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1answer
33 views

disk become empty after delete a large file

I have a 2T mobile disk with the format of NTFS. I store 1T files on it, including a large file with the size of 260G. After I delete the large file, all the file was gone. I remount the disk again ...
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32 views

How can I set up the internal HDD on my iMac to be able to connect to it from my laptop at college?

To better explain my question and what I am trying to do... my iMac is in my room in my parents house, and I want to be able to connect to my iMac's hard drive from about 300 miles away at college on ...
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3answers
922 views

Is it possible to restore OS X .dmg file to External Drive?

I recently traded in my iMac with 1TB HDD for a MacBook Pro with a 256 GB flash drive. I want to restore my previous hard drive but obviously it won't fit on the new hard drive. Is it possible to ...
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0answers
399 views

WD My Book Media shows up in diskutil, but doesn't mount or show up in Disk Utility

Initially this drive was connected (via FireWire) to my wife's Mac (still running OS X 10.7), but she it would not mount any more and she asked me to look at it. After reading suggestions on-line, I ...
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636 views

Unable to partition hard drive with Yosemite (Disk Utility hangs)

I have a 2007 model Macbook Pro running Yosemite 10.10.1. My father recently upgraded my hard drive for me from the stock 320GB hdd to a hybrid 500GB hdd. He's not really a Mac user and said there ...
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2answers
1k 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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2answers
314 views

Disk Capacity 500 gb falls to 250 gb after deleting files

I was attempting to free up disk space on my MB Pro - and subsequently deleted most of the iPhoto files & folders as I was constantly receing a 'your start up disk is almost full (e.g. 2.5 gb left ...
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1answer
55 views

How to reformat a time machine drive to use on a PC

My sister used to be a mac user and recently switched to a PC. She has her mac stuff backed up on two hard drives, one is formatted as a time machine. We've transferred all her important files to the ...
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1answer
1k views

How Do I Partition A Raid 0 Using Disk Utility?

I have just purchased a WD My Passport Pro. It comes in a striped RAID 0 configuration comprising of two 2TB drives. I want to partition the drive into 3: Photoshop Cache Lightroom Catalogue Video ...
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1answer
20 views

Actual Folder Size?

I have a TM back up from a retired drive. The folder info screen looks like this. The drive is 3TB and there's still 900GB free, so the 4.75TB reported size is not correct. Is there a simple way to ...
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1answer
81 views

Can I move a hard drive from a MacBook 13 to a MacBook 15?

I'm thinking of upgrading my machine to a 15" and wondering if I can just move the hard drive over and put a new one in the 13"? The reason is my 13" Macbook has a 2TB HDD and I'd rather keep that ...
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1answer
249 views

How to locate “other” files on an Imac [duplicate]

When I look at my available disk space on my imac it says ive used 700 gigs for "other" files. How do i find these files and delete them?
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1answer
57 views

Mounting a RAM disk on startup, but seems to be unmounted automatically

I wrote a simple script that mounts a ram disk: %> cat /System/Library/LaunchDaemons/ramdisk.plist <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST ...
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0answers
52 views

How can I have 128 GB HARD disk and there is 300.91 GB apps on it?

After I install pes2014 on my MacBookAir when I see the storage of my My macintosh HD Is foul. Is it a virus? What should I do?(before it my apps was up to 60 GB) It may be helpful that the pes is ...
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1answer
306 views

Disk Utility can't repair external hard drive, tried fsck whats the next step?

When I try and repair my external hard drives (I have two corrupt now some how both I think from improperly ejecting from the same machine), I get this message: Disk Utility can’t repair this ...
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2answers
153 views

2012 MacMini HDD died while installing Win 10 Tech Preview

I have a problem with a 2012 MacMini. diskutil list shows an internal 500 GB 5400 rpm drive as having 0 Bytes. It also states that it is unknown. Would TestDisk be able to reformat the drive? Disk ...
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2answers
98 views

replacing a toshiba hard drive in a mac mini

I took my mac mini in to a computer repair shop, they said I needed a new hard drive, so I paid them $300.00 to do the repair. Later on when I went to set up my mini mac it wouldn't work, and I found ...
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2answers
471 views

28 pin SSD adapter or enclosure needed for Late 2014 MBP

I've been trying to find an adapter for a Late 2014 MBP Retina SSD. Standard msata didn't fit, and from a few consumer reviews of other enclosures and adpaters, it seems to be uncertain if one exists. ...
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2answers
233 views

How to convert a DVD to ISO?

On Mac OSX 10.9, how do you convert a DVD into an ISO that I can use with players such as VLC. I wish to achieve this without buying a program. Steps I have tried: Downloading Mac app Burn. It ...
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2answers
1k views

How do I transfer a file from a guest account on a MacBook Air?

I'm logged into the guest account of a borrowed MacBook Air which is running OS X Version 10.9.2 and I've been trying to transfer a 2.19GB video file to an admin account, a USB or external hard drive, ...
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1answer
376 views

Using Windows on another HDD on a Mac

I have a 2011 MBP and I just replaced my optical drive with a hard drive. I wanted to know the easiest and free way to boot up windows 8.1 on one of the hard drives using only the iso and a flash ...
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2answers
1k views

Upgrading to SSD on 2010 MBP

I have a mid-2010 MacBook Pro, which I want to upgrade with an SSD in the Optical Drive slot and create a Fusion Drive (using the Terminal diskutil command in Recovery Mode) and then re-install OS X ...
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1answer
190 views

New hard drive in early unibody 2011 MacBook Pro won't boot

Newbie here! I just replaced the hard drive (to a 1T senate SATA) in my MacBook Pro and upgraded the RAM from 2, 2GB cards to 2, 8GB cards. Hardware install went smooth, backed up old drive to time ...
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3answers
853 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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2answers
1k views

How to access the full capacity of hard drives larger than 2TB with OS X Yosemite?

Last week, I bought a 4TB hard drive to connect to my MacBook Pro. My quest to have access to all the 4TB on my Mac was more difficult than expected. After a lot of experimenting, I managed to create ...
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145 views

After erasing 200 GB I need to repair it using the Recovery HD

I was cleaning my MacBook Pro, erasing all unused files I had on it. After that I decided to erase the free space, so I will have all my files organized and cleaned the "used space". After that I ...
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0answers
52 views

WD Drive Cannot be Repaired but program still running

I have an external hard drive that I use to run my iTunes, iPhoto library and store various other documents. Recently, it stopped connecting to my MacBook Pro. I can only see my WD Ultra external ...
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177 views

Mac recovery problem

So I was running Yosemite and I wanted to try to install the windows 10 tech preview. I backed up all of my files and downloaded windows tech preview. I tested it in a virtual machine and it worked ...
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62 views

I cannot open a Partition of a Harddrive when Shared

I've partitioned 0.75TB of external harddrive space for photo backups, which is shared on the network with a PC. However when shared I am unable to open the folder in Finder, as it will hang for 2 ...
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1answer
688 views

My system seems stuck on Optimize hard drive in FileVault

Just upgraded to Yosemite. Going through the process it asked about file vault. I said yes to encrypt it, so it started to optimize hard drive it seems to be stuck on 2 hours left....probably been 3 ...
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2k views

How can I retrieve files from a Time Machine backup done with Snow Leopard when my current OS is Mavericks?

I have a Seagate GoFlex home 2 Tb external drive that was installed on my Snow Leopard Mac and configurer with Time Machine. A year ago, due to issues with my Mac, the (internal) hard drive was erased ...
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1answer
178 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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34 views

How to copy data from non starting MBA?

My old MBA (2008) is not booting anymore from hdd. I tried to repair it with disk repair and with a DiskWarrior CD-ROM, but nothing. I need to copy some data from the hdd, before replacing it. Any ...
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111 views

BootcacheControl.playlist not found, MacBook does not boot anymore

Booting a MacBook with Snow Leopard installed will suddenly stop with the message: Unable to open /var/db/BootCache.playlist: 2 No such file or directory Booting in single-user mode, I can see ...
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1answer
1k views

How do I convert from Case-Insensitive to case-sensitive in 10.8

I just got a new (well refurbished) MacBook Pro running 10.8.3. I am a programmer, so I have need of a case-sensitive filesystem. It is fresh and I am reluctant to upgrade it or do much with it until ...
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2answers
327 views

Macbook Air Hardware Fault

Somebody has given me an Apple Macbook Air 1.1 to fix. Unfortunately I have very little experience with Macs. Symptoms are: *Computer runs incredibly slow to the extent that I have never seen one so ...
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100 views

SSD is not recognised with the internal SATA cable (13" 2010 MBP)

It's pretty weird, seeing that HDD's are recognisable, and that SSD works when in an enclosure (Crucial M500). I've read somewhere that it could be an issue with the cable, but I bought a replacement ...
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1answer
262 views

Deleting content of /private/tmp moved on different HDD

I have a Macbook pro with 2 internal HD (stock HD for data and data doubler + SSD in place of the optical drive, hosting the OS). I'm now trying to optimize this setup to take into account the ...
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98 views

Can I keep my Boot Camp partition when moving to a larger hard drive?

I just bought a 512 GB hard drive to replace my 250 GB hard drive, which currently has a Boot Camp partition (pretty vanilla, just running a standard Windows 7 install). I was planning to just clone ...
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472 views

Drive name red in Disk Utility: Core Storage Drive offline. How to bring back?

Yesterday, my mac wouldn't boot up. When I restarted, I could get the whole way to the User login screen. No matter what user I chose, the boot bar would get about 1/3 way finished and I would get ...
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1answer
39 views

Prevent Mavericks from generating new volume name for external drive

I have an external HDD, formatted exFAT, I believe. Whenever it is re-mounted, it gets assigned a new volume name (e.g., "MyVolume", "MyVolume 1", "MyVolume 2"...). As far as I can tell, this happens ...
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1answer
164 views

Compatibility of iMac G3 hard drives, to try to recover data

I have an old iMac 400MHz slot-loading G3 model #M5521 that won't power up (think it's a dead power supply), and I'm trying to get the data off my hard drive. I also happen to have a 333MHz ...
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1answer
339 views

How do I change permissions of folders on a hard drive from a booted USB drive

I am trying to save my files on my Hard Drive that has a crashed OS. I created a Bootable USB with Ubuntu and successfully booted. I can see my folders, but I can't actually open them because I don't ...
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253 views

Two different USB 3 HDD docks - disk partitioned on one not usable on the other

I have two different 3TB SATA hard disks: a Toshiba DT01ACA300 a Seagate ST3000DM001. I also have access to two different USB 3 HDD docks: a Connectland DOCK-CNL-YJK3519-V3+ES a Focus SATA + IDE ...