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

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2nd SSD as main boot disk, what do I do with old filesystem?

Hello StackExchange! After a couple years of using my macbook pro, performance has deteriorated with each update to OSX. I've tried a few things to improve it, and with no results, I decided to get a ...
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18 views

Brand new 15in retina

I bought the mac then hooked up Time Machine and started restore to Mac HD. All was fine until the end when the backup from on 6 minutes to go for a couple of hours. No progress at all. So after ...
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jet-drive expansion card full with duplicate files like startup disks, how to prevent?

MBP retina 2014 Mid yr 13" w/ Yosemite , Start up disks were saying they were full within one week so I bought jet-drive expansion card and it keeps filling up with duplicate files just like Mac does, ...
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83 views

MacBook Pro won’t boot up after putting the bottom case screws back in place

I'm kind new in this world of Apple, and I have an Intel-based Mac that suddenly had the hard drive fail. So I make a Mac OS X USB flash drive, and realize that the old hard drive died since “Disk ...
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72 views

Time Machine backup external disk not mounting anymore

I just installed Security Update 2015-002 (Version 1.0) on my MacBook. The latter has a 1.0TB internal hard drive, backed up onto a 2.0TB external USB2.0 3.5 inches hard drive. However, after ...
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85 views

HFS+ invalid number of allocation blocks

Okay so a few days ago I wanted to install Ubuntu GNOME over regular Ubuntu and it gave me the option to automatically overwrite my Ubuntu installation (that I had on a separate partition from my OS X ...
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2answers
306 views

Third party SSD optimization Yosemite

Unaware of the current issues with Third-Party SSD support on Yosemite I went ahead and bought a 128 GB Crucial MX100 SSD. I hear a lot of problems about enabling Trim on Yosemite etc. I recently ...
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41 views

My internal “Machintosh HD” is not detected by my MacBook Air

I was trying to clean install OS X (from http://www.ibtimes.co.uk/how-clean-install-os-x-yosemite-via-bootable-usb-flash-drive-1470625). I made the bootable disk, booted from it, and tried ...
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67 views

Upgrade RAM or switch to SSD? [closed]

I have a 2010 MacBook Pro (2.4Ghz) with 4GB of RAM (2x2) and a 250GB hard drive that's about 85% full. It's been running pretty sluggishly lately even for basic tasks. It is 5 years old, but a new ...
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66 views

Problems with target disk mode, HD does not show in Finder/Desktop (only in Disk Utility)

I have a MacBook Pro which goes straight to Disk Utility when I try to start it (it totally froze and I forced it off and on). And no luck in repairing the hard disk (Disk Utility can't repair…) I am ...
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34 views

Permanently disable time machine prompting for external disks

Is it possible to disable time machine prompting when inserting external disks? I use an appliance with SATA disks that regularly formats the disks. Whenever I plug such a disk in I get prompted ...
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223 views
+100

Mac OS X doesn't recognize hard disk

I replaced my CD drive with a Western Digital 750GB hard drive using the iFixit guide. My Mac for some reason throws error on any interaction with the hard drive, for example on disk utility when I ...
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3answers
127 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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1answer
43 views

Is my Macbook too old to edit videos?

I got my Macbook Pro 15" around 2011 to edit videos for my film school. I carried my MacBook around with me using Final Cut Pro 7 with no problem for around 2 years. I stopped editing videos after I ...
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1answer
16 views

How to rename disk indentifier?

I created 5 partitions on my portable-drive via DiskUtility. $ diskutil list disk2 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: ...
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26 views

BBoD even after fresh install to new HDD

Got a bit of a weird issue which is driving me nuts, i have a Mac Pro tower which was purchased around 2010, it has been in storage for the past 2 years. Anyway I recently hooked it all up and found ...
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1answer
75 views

Is undoing Yosemite's CoreStorage conversion dangerous?

I tried to make an 8 GB partition on my hard drive so I could make it into a bootable drive, like Recovery HD but without the need to redownload the OS, but for some reason Disk Utility wouldn't let ...
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1answer
38 views

Remove partition and restore the space without erasing

Time ago I split the hard drive (500gb) in two partitions (250 each), now I don't need them anymore, so I have first erased successfully one partition and now I have still the second one (Mac HD 2) ...
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79 views

Is my hard drive already dying?

Although everything is working fine with my Macbook Air from Mid-2013, I have a few errors that bother me. Here they are: Onyx says this: The SMART status was not verified because it is not ...
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1answer
57 views

Flashing folder icon appeared once after changing Macbook hard drive

About 2 weeks ago, I updated my late 2011 Macbook Pro hard drive to a Crucial MX100 solid state drive. The drive installation and data migration went fine with no issues, but today I found the ...
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2answers
175 views

Stop sign at boot - new SSD

I've got a mid 2012 MBP 13" in which I inserted a brand new MX100 in the place of the old HDD. I've put the old HDD in a case in the superdrive place and tried to install 10.10 but the install failed. ...
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54 views

Replace Recovery HD with a “bootable drive” formatted partition?

A while ago, I had the idea to use the bootable Mac OS X USB drive-making procedure on a hard drive partition, so that I could basically have a version of the “Recovery HD” that doesn’t need to ...
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104 views

How to write fstab rules for an NTFS volume if the volume has no LABEL or UUID?

Basically, I was following this tutorial to enable writing to an NTFS Volume (which works when the Volume has a LABEL or UUID). I have an external USB drive with an NTFS volume that doesn't seem to ...
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25 views

Is enabling rw in /etc/fstab for an NTFS volume risky?

I've followed this tutorial: http://computers.tutsplus.com/tutorials/quick-tip-how-to-write-to-ntfs-drives-in-os-x-mavericks--cms-21434 I'm not familiar with Mac OS X's NTFS support, having used ...
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1answer
103 views

Mac terminal stop hard drive from spinning

Can I stop hard disk drives from spinning using Terminal? The reason why I want to know is because I have my Mac to backup at midnight however I do not want my HDD to be spinning all the time. I ...
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469 views

MacBook Pro upgrade to SSD migrating OSX and Bootcamp partitions

I wasn't able to find the info I needed here or on Apple's own forums or via Google, so here goes. I have a MacBook Pro 15" early 2011 model with a 500 GB internal hard disk drive (non-SSD). ...
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892 views

Error / Hang Installing Yosemite and Mavericks on Mac Pro SSD

Having had a hard drive failure, I'm attempting a clean install of Yosemite on a 2010 Mac Pro, with a brand new 120GB OWC SSD. I've tried using a Yosemite boot disk, using both an external hard drive ...
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47 views

Is there a way to manually repair a CoreStorage volume?

I was playing around with CoreStorage on a test disk and used the undocumented commands cs addDisk and cs removeDisk. The addDisk command worked just fine and was able to expand a logical volume ...
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140 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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24 views

Delete Xcode shared folder

Can I delete the Developer > Xcode > Shared folder? I want to clear out space and noticed that it takes up 2 gigs of data. Is it safe to delete? I use Xcode often.
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1answer
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What takes so much space in my external disk?

My external disk (LaCie) is full! When I look at the individual folders within my disk, I see that only little space is occupied by visible documents. So I displayed the hidden files and found small ...
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42 views

Internal HDD works with pc but not mac. MBP

I had bootcamped win 7 on my mac a while back until one fateful night I was hit with a bluescreen. When I attempted to restart I received a no drive recognized error. Since then I have done everything ...
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24 views

Dying iMac drive, emergency repair assistance

I have a older 27" iMac ( 2011 ) and the hard drive is on its way out in a serious manner, ( smart status failing, io error every few seconds in much kernel log , speed of io is the worst I have ever ...
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46 views

GPT looks valid. Diskutil sees empty disk

External 3 TB disk. Stopped working after a power bump. GPT reports as follows: bash-3.2# gpt show /dev/disk6 start size index contents 0 1 PMBR ...
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22 views

Motu 828 firewire with Maverick

I've upgraded to 10.9 and now my motu 828 firewire is not being recognized. What can I do to not loose my interface?
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1answer
108 views

Dual hard drive setup in early 2011 MacBook Pro 17" (replacing optical drive with HDD)

I have an early-2011 MacBook Pro running OS X 10.10.2 (also Windows 7 Professional on a Boot Camp partition), and recently upgraded my hard drive to a 500GB SSD (Crucial MX100). The speed is amazing, ...
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3answers
499 views

How do I get an operating system onto a new hard drive?

I will be installing a new 500GB hard drive in my macbook. It is a late 2008, aluminum, 13-inch screen. Once I install it, how do I get an operating system that's 10.7 or newer (downloaded from the ...
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1answer
242 views

Implications of using a USB SSD drive to run VM images off

I'm running VMware Fusion on my Apple Macbook Pro (15 inch, Mid 2012, OSX 10.10.2), and have several VM images that are stored on an external USB3 disk (WD Passport). The external disk is fine for ...
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66 views

Flashing question mark, low hard drive space

When I booted my Mac last night I got a flashing folder against a gray background. The computer started fine this morning, but when I closed the lid and opened it up again I had to reboot, and now ...
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38 views

Data recovery after interrupted partitioning

My MacBook Pro was working fine until my friend stopped the Disk Utility from partitioning and force quit the application. Ever since it seems that the problem has grown larger and larger as I used ...
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21 views

iMac Time Machine HDD and Internal HDD failed at same time

My 2008 iMac, which has been extremely reliable for several years now, began to show the spinning 'beach ball' one day, and then would become unresponsive. After a couple of forced reboots, the ...
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147 views

What is the recommended partition scheme for mac os x?

I did a clean install of yosemite on my MacBook Pro. I have not partitioned my hard drive and have left everything by default. I would however like to use the recommended schematic for Linux systems ...
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66 views

I can't create a second partition in Mac

When I go to my disk utility, my main hard gives me results like this It's showing capacity 499gb but only remaining 10mb. Now please see the second image What's happening with my Mac?
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34 views

In MBP, SSD can only be used to boot by USB, not as an internal drive

I have a Macbook 17" (early 2011) and I recently upgraded the default HDD to an SSD. This worked for a couple weeks but then I started getting a folder with a question mark on it during boot and the ...
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1answer
333 views

“Couldn’t create temporary file.” error when erasing free space on external disk

I was trying to wipe the free space of an external USB 3.0 disk in OS X (Yosemite) disk utility. However, I receive the following error: EDIT: The disk is formatted as GUID / Mac OS Extended ...
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124 views

Macintosh HD disappeared from finder after “disk damaged and cannot be repaired”

I have a MacPro 13.3 Inch mid2011 with 500GB storage and recently while performing a Mac update, it froze and was still stuck on a grey screen even after multiple restart attempts. I finally tried ...
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52 views

Mac Encrypted HDD Please help!

Hi everyone I have encrypted a partition of an external hard drive from the mac desktop. I pressed that key button then pressed memorable and it changed my entire password unknowingly. I need help. ...
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Why can I not create a directory on my external hard-drive?

When I try to make a new directory on my external hard-drive I get a message saying that it is a "Read-only file system" LU06296APPLE:~ fortinok$ mkdir /Volumes/Seagate\ Backup\ Plus\ ...
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Negotiated link speed considerations for SSD choice?

If my negotiated link speed is 3 GB (instead of 6 GB), does this still mean I'm using SATA III on my early 2011 Macbook Pro 17-inch laptop? I ask because I'm currently upgrading my HDD with an SSD ...
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Would a snapped IR sensor ribbon on a A1181 macbook stop the macbook from booting?

Would a snapped IR sensor ribbon on a A1181 macbook stop the macbook from booting? I was replacing a sata hard drive cable in macbook and the IR sensor snapped and I am still having very odd hard ...