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

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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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87 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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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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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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25 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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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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22 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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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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69 views

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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26 views

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 ...
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22 views

How many files are on my HFS drive?

Is there a quick and easy way to tell about how many files I have on a given HFS+ formatted hard drive? On Unix, I use df -i, but HFS+ apparently doesn't use inodes and returns a silly answer based ...
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68 views

MacBook Pro mid 2012 OS X Yosemite hard drive error

So I went to my MacBook the other day and the screen shows nothing but a folder with a question mark flashing. It won't reconize my hard drive. I can still hear it spin up and running so is this still ...
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36 views

ipod classic 160gb

I need help. I am literally at my wits end. I've had my 160GB IPOD A1238, Model number 2173. for just under a year. No I don't have the receipt because I expected Apple products to be quality. I am ...
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36 views

Change write permissions on internal HD outside of OS

I have a late 2009 iMac with a 1TB internal HD. I am unable to boot the OS however when running disk utility, through target boot and booting into an external HD, I am unable to repair, erase, ...
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76 views

Missing hard disk space

I'm trying to figure out where my missing hard disk space is going. I'm using du and df from the command line and there seems to be a clear discrepancy. So here's the du output: $ sudo du -h -d 1 / ...
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22 views

DriveDx shutdown count is very high

DriveDx claims that there have been 2051 power cycles on my Fusion SSD in 17 months. For the Fusion Hard drive part it claims 6402 power cycles count. SSD power on time has been 12250 hours and ...
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19 views

Best overall hard drive for a macbook pro 15" mid-2010

I am not up to date with all the specification. How does something like this look? ...
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265 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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48 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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152 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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85 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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245 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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134 views

Yosemite upgrade and corrupt external partitioned hard drive?

I upgraded to Yosemite and shortly afterward mybook hard drive 1.5tb fat formatted failed to work. All I was doing was playing itunes songs stored on the partitioned hard drive. I then tried to verify ...
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28 views

Trying to Partition My Macbook from mid 2009 running osx 10.5.8 to partition 10GB

Ive been trying to partition my hard drive for a very long time and the only time it will work is when i partition a 1 gb section i want a 10 gb section. My total hard drive space is 111.3 GB and i ...
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121 views

Macbook Pro OS X 10.9 Partition problem

So I bought a MacBook Pro mid-2009 with Mavericks installed (post-leasing) and this is my first MacBook. The HD was partitioned in three partitions C, D, E - I didn't want that, so I read a little, ...
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62 views

Newbrand Mac with Yomsemite, 1TB HDD, limited to two partition

I just bought a new Mac , i started to make few partitions as i used to do in the past. I noticed i am not able to have more than two partition :( It says : "you may only split this partition into ...
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207 views

seagate harddrive won't show in finder, appears in disk utility, can't mount

My hard drive seems shows up in disk utility but not in finder. All my finder preferences are set correctly. The partition does not seem to want to mount. Here are the errors found in the console ...
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327 views

Can't mount Macintosh HD volume - invalid content in journal

my 2TB external HHD has decided to fail to mount with the error "invalid content in journal" so i removed the journal using the terminal and tried to mount it - still fails ran verify disk on the ...
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25 views

Time machine troubles

I have 2 time machine backups on two different hard drives. One drive is formatted non case sensitive, and the other is formatted case-sensitive. I recently bought a 3rd drive, that I wanted to put ...
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42 views

Put only HD to sleep when possible, without putting SSD to sleep. Its possible?

Can I put only HD to sleep when possible, without putting SSD (inserted in superdrive slot) to sleep? (surfing on some forums I read that some problems may arise with SSD stop mode)
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115 views

MacBook HDD - keys out of order and disk full error

I have MacBook late 2008 10.6.8 120GB HDD. Lately its been kernel panicing once a week and last panic was really bad. After panic, i booted and verbose log says this: checking catalog file keys out ...
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78 views

External HD Accidentally pulled out of computer

A few days ago I accidentally pulled my WD MyBook 1110 Media external HD out of the USB connection on my Macbook Pro. I have tried to repair the HD with Disk Utility, but the 'Repair Disk' option is ...
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28 views

Help With Lacie External Drive for Mac with TWO Users

My husband and I have one MacBook Pro but we each operate our own 'side' of the computer (as separate users). We are now out of space on our computer so I'm trying to copy over files from BOTH sides. ...
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44 views

change ddrescue log?

I am currently rescuing a 320 GB hard drive by using the ddrescue command on the mac terminal. The hdd is running hot very quickly, so I have to put it outside in the cold before I can go on, but it ...
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91 views

MacBook Pro 15" Reoccuring Freezing Problem

I have a MacBook Pro 15" that has been having a reoccurring issue. It gradually starts to slow down while using it, starts freezing, and then will get stuck on the Apple logo loading screen after ...
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395 views

permissions problem in copying from external drive in Yosemite

Following a failure of Migration Assistant (sigh), I am trying to manually copy my daughter's files from an external Firewire drive to a newly upgraded iMac running Yosemite. I recently put an SSD in ...
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41 views

Can I Time Machine An External Hard Drive?

I have an external hard drive that I have time machined before but its not current. However, my old iMac has broken down but the hard disk is still ok. So I took out the old hard disk & start up ...
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146 views

You can only install this software on the disk that is running os x

I have 2 disks in my Mac - a new SSD which is my boot drive, and the original disk which came with the mac, which still has OSX installed on it (I haven't figured out what to use this drive for yet). ...
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202 views

How to unlock disk after unsuccessful upgrade?

I tried to upgrade to OSX Yosemite on my MacBook Pro. I had only 4GB of free disk space. Everything went fine until it said only a minute remaining. This was on for 8 hours. Eventually I restarted the ...
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32 views

I have a free space in my HD. I can't use it or modify it. I

Whenever I click apply after changing the options in disk utility, nothing happens. I can't also find the free space partition using terminal. What should I do about this?
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77 views

5k iMac won't recognize hard drives

Just got a new 5k iMac and none of my Seagate hard drives will work with it. it says it's not recognizing the HD. In Disk Utility it won't allow me to repair or verify. The repair and verify buttons ...
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987 views

How to let Time Machine automatically delete older backup files to free up disk space?

How to let Time Machine automatically delete older backup files to free up disk space? It does not seem to automatically do it as it starts a backup and failed at the middle complaining not enough ...
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262 views

Disk Utility won't let me remove partition. No matter what

Since Yosemite was released this month, I decided to inaugurate it by downgrading from Mavericks to Snow Leopard. I decided to back some files up in a partition (on Mavericks) before wiping the main ...
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76 views

Macbook waking harddrives when i walk near it

This might be hard for some to believe but i swear it is a fact. I purchased a brand new MBP Mid 2014, 2.8 Ghz 1TB 16GB. Works well. I have a few external drives connected to it. When i put the MBP ...
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364 views

Hard disk drive problem with Macbook Pro, can't see and repair it

I have a problem with my MacBook Pro 13'' mid 2012. I have an external HDD and when I insert it, it doesn't appear on the desktop. If I go into Disk Utility I can see it, but it is written in light ...
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52 views

Time machine backups on a USB HDD show as “Other”

As the screenshot shows the TM backups are listed as "Other" in the storage overview. The actual backups are shown taking measly 131 MB. The disk is used exclusively for backups and has no other data ...
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31 views

Why is Time Machine only using 20% of its partition allocation

rMBP Late '13, running Mavericks, 128GB SSD. I have a 1TB drive, partitioned equally via Disk Utility to two drives. One is used by Time Machine, the other by Copy Carbon Cloner. I think my concern ...
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28 views

Can you add a 3rd-party hybrid disk to a 2012 Mac Mini?

The Apple Fusion drive is done predominantly through clever software, I wondered what happens if instead of trying to do a DIY Fusion with 2 drives, you just replace the standard fixed drive with a ...
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160 views

When copying a directory from one external HDD to another Finder tells there are more files than in the whole HDD

I have this problem when trying to copy files from one external HDD to another, the thing is that in the first HDD the Disk Util app says it has 10,702,660 items and when I try to copy them the ...
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45 views

Install linux to an encrypted FV2 disk

I got a macbook pro 9,2 (non-retina 13'') with mavericks. The HDD is 1TB and I have activated full disk encryption with FileVault2. I want to split this HDD to two partitions, one 800GB that ...