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

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Another 2011 MBP display meltdown - how to copy internal HDD?

Last night while watching some videos and browsing the internet as usual on my 2011 MBP, the screen went to solid grey and hasn't come back since. I've been reading for hours about this issue and it ...
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4answers
558 views

Reformat / resize an external hard drive removed from a NAS

I have a 3TB hard drive that I removed from a NAS that is only showing as 800MB on my Mac. Have tried Disk Utility (and terminal diskutil) but the hard drive keeps showing at the wrong size. ...
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2answers
118 views

Is there a canonical guide to replacing the hard drive in a MacBook Pro?

I have a mid-2010 Macbook Pro 7,1 that I have kept up to date over the years, currently running the latest version of Mavericks. I am planning to replace the 250 GB Toshiba hard drive it came with. ...
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1answer
224 views

MacBook Pro doesnt boot after systemupdate / repairing volume doesnt work

i have a problem with my MacBook Pro. I installed a Systemupdate, reboot and then i had a loading screen which loads a long time. Then i started the mac in verbose mode and there is... hfs: mounted ...
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2answers
38 views

Why does my 2.5 TB HDD appear as a 2.2 TB HDD and a 300 GB HDD? How do I merge them?

I have a Western Digital 2.5 TB hard drive. (Model WD25EZRS) It's connected through an external USB dock to my iMac, running Mac OS X Mavericks. In Disk Utility there are two volumes, totaling 2.5 TB ...
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1answer
60 views

Force a read-only mount of startup disk

I want to create a MacOS recovery startup disk on a USB flash drive. In order to maintain the integrity of the drive's contents (and, perhaps more importantly, reduce write wear on the flash drive ...
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1answer
72 views

Macbook 5,2 (Mid-2009) optical bay hard drive enclosure

I was wondering what about my Mid-2009 Macbook makes optical hard drive enclosures like this one incompatible with the enclosure. And if there is another way that could get a second drive in there.
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2answers
332 views

Disk space disappears to 0, then after a while I have free space

I've been having this problem for quite a while and it happens occasionally and when it does it get very frustrating and I'm just trying to pin point what is causing it. When it happens, the disk ...
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0answers
77 views

Time Machine and an Unmounted Internal Drive

A couple of weeks back I put an SSD in my macbook, keeping the old spinning disk drive around using an expansion bay. Everything went fine, and I got it backing up. However, having the SSD around, I ...
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1answer
47 views

Do I need a special external hard drive to use with Time Machine

I am searching for a hard drive but I wonder if just about any will allow me to partition it so that I can use a part of it for Time Machine only. Thanks.
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3answers
3k 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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0answers
154 views

Mac Mini 2013 wakes immediately after sleep when USB drive plugged in

I have a 2013 mac mini running osx 10.9.3. I used to be able to send the machine to sleep by going to the apple in the menubar and choosing sleep. After a recent update, when I do this the displays ...
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1answer
142 views

Creating a EFI partition

I have been having trouble installing OS X Mavericks and I think I found the problem. It told me I couldn't boot up with Macintosh HD, so I verified my disk and I got this error: This disk doesn't ...
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1answer
5k views

Can I simply install a fresh OS X without a thumb drive?

I've always installed a new OS X install via a thumb drive. However, at that time, I only had a single hard drive. Now, I have two hard drives, but the question is: Do I still need a thumb drive now? ...
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4answers
4k views

Need to replace a hard drive in a macbook

I have been asked to "replace a hard drive in a macbook". I'm able to physically swap out the drive, but I have no idea how mac software works. I have some questions: If I put in a new hard drive, ...
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2answers
31 views

Is repeatedly reading a drive harmful?

I have an external hard drive that was making an odd sound, and I wanted it to stop. I found out that navigating the contents of the HD in the Finder would make it stop temporarily. I set up a shell ...
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0answers
60 views

Alignment error with external hard drive, Time Machine

While trying to backup via Time Machine, I am seeing the following errors in 'sudo dmesg' output: CODE SIGNING: cs_invalid_page(0x1000): p=8425[GoogleSoftwareUp] clearing CS_VALID USBMSC Identifier ...
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2answers
98 views

Harddrive is full of Audio and Photos, how can I find them?

I have bought a new Macbook and when I go to About This Mac -> Storage I see: 1.11 GB Audio and 750 MB of Photos.. But I have not copied any Audio or Photos to this laptop. How can I find where these ...
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2answers
2k views

MacBook Air with Mavericks does not start up, no disk utility available

I have a severe problem with a MacBook Air. It does not start up, it hangs at wether a pure white background or white with the Apple logo. I tried to go into disk utility but pressing the option key ...
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0answers
37 views

How to use Time Machine to back up a partitioned drive?

My MBP was originally a single SSD partition, which I backed up with Time Machine to an external USB HD. I created a new partition on the SSD for Yosemite, and am running the MBP on 10.10, although ...
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4answers
201 views

Use 256GB USB Thumb Drive as main boot drive

My iMac is very slow and I would like to start from a fresh Mavericks install. But instead of spending the time to backup my internal drive, I would rather just get a big 256GB thumb drive and install ...
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1answer
111 views

“Other” storage in Mac 10.9

I have a Macbook Pro, 10.9 with 500GB of hard drive storage and 4GB of RAM. When I access the Utility app "System Information", this is what I got. There is a yellow block called "Other". What does ...
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39 views

Replaced Ipod video hard drive and battery, now won't start. Did I accidentally kill the hard drive?

As I said in the title, I've been trying to revive an old 5th gen ipod video. I replaced the hard drive, screen, and battery. At first it wouldn't boot, only giving sad ipod error. Then out of ...
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1answer
47 views

Incorrect amount of free space on 2009 Macbook

Recently, I've been noticing that my 2009 Macbook's storage has been plummeting. Despite cleaning my computer up, nothing seems to be working. I went to the apple store and we ran tests (which I ...
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1answer
96 views

Fusion Drive constantly spinning up and down

I've got a 1TB Fusion Drive (with a Seagate 7200 rpm hard drive) in a Late 2013 27" iMac. While the iMac is asleep, the hard drive spins up and down every minute or so (without fail), creating an ...
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0answers
32 views

Is it possible to rename a logical volume group that's currently in use with bootable partitions that contain data?

I need to know if it's possible to accomplish this: http://apple.stackexchange.com/a/90821 but without having to wipe the drive. I added a new partition and installed another instance of OS X but ...
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2answers
3k 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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0answers
85 views

Disk Utility Crashed whilst creating a Partition and I'm now missing hard drive space

Disk Utility Crashed whilst creating a Partition, and I now have ~100GB missing, which was the amount I had allocated to the new partition. The new partition didn't get created, and I now have 100GB ...
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2answers
584 views

Encrypted external drive usually prompts for password, despite being in keychain

I have an external encrypted drive, and almost every time I plug it in, it'll ask me for the password, even though it's already in my keychain. If I type the password in, it'll mount as expected. ...
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1answer
48 views

Apple support, mac with unencrypted drive

Because of an incident happened a few days ago, I'll have to bring my MacBook Pro to an Apple Store to get it repaired. Problem: Even though automatic logins are disabled, and to access the computer ...
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1answer
347 views

2nd HDD in Early 2011 MacBook Pro ejects during large file transfers, but only in OSX

I recently installed a 1TB HDD in my early 2011 13" MacBook Pro using an MCE Optibay. The stock 120GB SSD houses an OSX Mavericks install and a Windows 7 install, done basically via Bootcamp. The 1TB ...
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1answer
45 views

What is the specification of the extra screws needed to install a second drive to an upper-drive populated Mac Mini 2012?

I ordered the wrong OWC Data Doubler kit. I didn't notice the note saying that some Mac Minis have an upper drive configuration and that it would require a variant of the kit with additional ...
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1answer
965 views

External Seagate Hard drive for Mac - Compatibility

I am looking to purchase a Seagate External Hard Drive for my MacBook Air. The products claims it works only with PC (windows), however, I have read multiple places that I can just format the drive ...
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5answers
381 views

Chances of getting my harddrive recovered

I accidentally placed a magnetic mount antenna near my hard drive while my computer was running. It then made horrible noises, and stopped working, and everything froze. Now, every time I start my ...
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2answers
1k views

External drive HD WD 3T My Passport with Mavericks suddenly unmounts

I've a problem with my external hard drive, a Western Digital 3TB, with my Mac running OS X 10.9, Mavericks. When my hard drive is linked to my MacBook Air and, I work with it, the drive suddenly ...
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0answers
80 views

Slow disk access time in fresh OS X installation

My apple-shipped disk on my frankenstein early 2011 MacBook Pro (with upgraded motherboard to 512MB GPU Memory) just gone bad and I have to replace it. I had replaced DVD drive with SSD with the old ...
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1answer
1k views

External USB3.0 4TB HDD is not recognized by Mac OS X

I've bought an external 4TB HDD. It is this this one. The problem is that my Macbook Air 11" 2013 (with Mac OS X 10.9.2) does not recognize it. The device is ok. I can use it from other computers ...
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63 views

Disk I/O error on a superdrive?

The hard disk of my late 2011 MacBook Pro 15" died and I replaced it with an SSD. I wanted to have more space, so I bought a 1 TB hard disk and put connected it instead the superdrive. The problem is ...
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1answer
3k views

Any point in waiting for Samsung 850 EVO?

I'm about to upgrade my MacBook Pro (13" mid 2012) with 16GB of RAM and an SSD. According to this news article Samsung's new 850 SSD series might be around the corner, and I'd much appreciate your ...
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1answer
106 views

SATA II or III for external hard drive enclosure?

I want to put the hard drive (500GB) that came with my MacBook Pro (13" mid 2012) in an external (USB 3.0) hard drive enclosure. Are there any benefits to choosing one with the SATA III (6Gb/s) ...
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2answers
108 views

how to create a 128MB HFS+ partition using diskutil

I have a ~ 500GB disk in my new Mac, and I would like to create a 128MB HFS+ (Journaled) partition using OS X, but when I tried to do this earlier today the smallest HFS+ partition I could create was ...
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3answers
136 views

how to upgrade my Hard drive on MacBook pro

I have a MacBook pro version 10.9.3 with 2.9 GHz Intel core i7 processor. 8GB of ram and a 750GB HD. I'm running windows through parallels and allocated 4GM of memory to it and a used my bootcamp ...
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2answers
517 views

Samsung EVO 480 *and* stock hard drive not recognised by Snow Leopard installer

A friend of mine came to me with her Macbook Pro 8,3 (17 inch, 2011). The hard drive had failed, and booting into the recovery disk didn't show a working hard drive. I went out and bought her a ...
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2answers
113 views

How to keep data from an old Mac to restore later

I have a new Mac, and I want to selectively move files over from an old Mac. I've sold the old Mac and need to ship it today, so what I really want to do is simply take a complete copy of the HD in ...
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1answer
197 views

Do I need to zero out a new disk after formatting it?

Does anyone know if I should 'zero out' the new disk I bought? It was NTFS formatted so, unable to use it like that. I did a repartition to HFS+ in seconds, and then decided it might be better to ...
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2answers
12k views

How can I get Automator to mount a network volume?

I am writing an Automator "script" that rsyncs media on my 10.6.3 MacBook Pro to my Ubuntu 10.10 HTPC. I can make Automator run my shell script for rsync commands, but I can't make Automator mount the ...
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2answers
182 views

How to comprehensively benchmark SSDs on OS X?

I want to benchmark my SSD under different circumstances. Connected through USB3, Thunderbolt and internally (S-ATA). Unfortunately I can only find benchmarks which concentrate on measuring read and ...
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1answer
179 views

Using Windows to boot up a hard drive with Mac OS in a virtual window

I have the latest Mac OS X Mavericks installed onto a hard drive which I can boot from. As I mainly use a Windows machine, is there a way to boot up the hard drive in a virtual window on Windows, ...
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2answers
219 views

Apple infinite load. I/O error and even a new HD

My mac mini from the 2011 refused to boot. Apple logo and loading image forever.. I tried cmd+s: Went through all the steps from the applejack, tried fsck -fy, all semmed pok, Tried cmd+v: It ...
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1answer
184 views

Is it safe to delete heapdump.hprof.old?

I'm on a mac book air running OS X 10.9.2. I want to free up space. I see that a file called headdump.hprof.old is occupying a lot of space. Is it safe to delete it? What does it do?