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

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How to Fix Disk Utility Getting Stuck on “Verifying storage system”

Okay, had a brief power outage today that shut down my computer and external drives, so I figured I should run a quick disk check just to be safe. However, when I run try to verify with Disk Utility, ...
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5 views

how can we do caching filesystems information in the SSD? [on hold]

We know that SSD has no knowledge of the file system structures, including the list of unused blocks/sectors. What problem will happen SSD with this deficiencies? Have SSD improve the performance if ...
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15 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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23 views

My macbook air wont let me erase my disk?

What the title says. I'm trying to delete all the data off my macbook air. I pressed command+r, went to disk utilities, selected my disk in the slot to the left, went to the erase tab. The "erase" ...
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2answers
19 views

2010 MBP 10.8.2 wont boot, stuck on grey screen spinning wheel,

Pretty please help. Here is the situation Purchased in 2012, no install disk, came with Mountain Lion. Never had any problems with it until a couple weeks ago when it froze when I opened the lid. I ...
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1answer
11 views

Is it possible/a good idea to use an ExpressCard SSD for swap?

I have a 48GB WinTec filemate ExpressCard SSD which I'm not currently using for anything. My idea was that I would re-partition it with a 16GB partition for swap and virtual memory (I have 8GB of ...
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20 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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14 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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16 views

I have to repair my external hard drive each time I plug it?

I have a 2009 320GB Toshiba Hard Drive, and every time I plug it to my macbook pro 13inch Retina, I have to go to Disk Utility -> Repair Disk. Why is that? Whats the solution? Please help!!! Thanks
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13 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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38 views

Transferring iPhoto to iCloud drive

I have been running out of hard drive space on my older MacBook Air. I decided to free up the 91gb of space that is my iPhoto. (I believe) I moved iPhoto in relatively easy fashion. I drug it from ...
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7 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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15 views

How do I clone my drive to a external USB drive?

I have CarbonCopyCloner but it cannot see my new SSD in the destination section. The destination drive is a USB-attached SSD. How do I clone to this drive in CarbonCopyCloner?
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30 views

Data partly lost or hidden on external disk

I have an external disk connected to MacBook via USB. From time to time the system alerts that the disk is unreadable, but sometimes it seems to connect and I can browse it in Finder, and even open ...
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1answer
13 views

Can the MacBook boot from a second HDD

If I was to install a SSD in my MacBook Pro (Mid 12) where currently the Superdrive is attached and continue to use the preinstalled HDD for other files, can I run OSX from that new drive? Or in ...
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28 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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23 views

Having trouble mounting a 12TB Raid on Ubuntu Server

I am running a Ubuntu server on my off of my 2008 MacPro, it runs great and works really well except I am not able to run any raid setups directly on it. I have a large library that needs to be ...
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1answer
157 views

MacBook updated to OS X Yosemite version 10.10 and experiencing problems with hard drive & iPhoto

I updated my MacBook to OS X Yosemite version 10.10. Everything seems to be fine... apart from: My WD hard drive won't open now - it appears on screen, allows me to enter the password to unlock and ...
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81 views

2011 macbook pro blue screen

I'm trying to determine whether I'm having a ram, drive, or board issue. I used to be able to log in and actually use my laptop but it would run slow and over little time the fan would kick on and ...
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45 views

Option to use airport express with 1 terrabyte harddrive for dropbox equivalent

I have an airport express with a 1 terrabyte harddrive, obviously this airport is connected to the internet and in the next month our house will be conected to the optic fibre network giving us 200 ...
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1answer
25 views

Do I need to keep any cautions in mind when transfering an external SSD into my Macbook?

Hi I am now successfully running my MacbookPro off of a bootable external SSD (which is runnung Yosemite and onto which I cloned my whole system) and I would like to switch it out with the old HDD ...
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1answer
32 views

How can I reclaim the partition's space from this shrunk volume?

I've already reverted the CoreStorage volume. And I've resized my "Macintosh HD" volume (by dragging it) and want to increase the size of my "Yosemite" volume. How do I reclaim the space (in grey) ...
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14 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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36 views

Time Machine Changed My External Hard Drive's to MBR and now I can't access it!

On Yosemite, I was using Bootcamp to install Windows on a part of my internal hard drive. When, bootcamp was finished (before booting into Windows), Time Machine popped up and asked me if I wanted to ...
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29 views

Processes writing over 100GB to disk? [duplicate]

My computer just gave me an alert saying that there was no disk space left. I checked About this Mac, and it says that 400GB or so is used up by pictures, which I know is completely incorrect. I have ...
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3answers
352 views

How can I install Yosemite onto an SSD drive?

Im going to update my mid 2010 13" MacBook Pro to an SSD drive (Samsund 840 250 GB). I am currently running Yosemite on my old HHD drive and was simply going to make a bootable USB with Yosemite on it ...
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37 views

Do I have a Recovery HD?

I replaced my MBPs HDD with an SSD and put the HDD in the optical bay. Since then, I was missing the Recovery HD partition. That was still on Lion Now I have upgraded to Yosemite, and running ...
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1answer
54 views

How to recover data from a mac that crash on login?

I have a mac book pro that is crashing everytime I logged in (with every users). The cause may be that my gf put so many pictures and video on the hard drive that it can't even start (from the restore ...
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63 views

Does iCloud keychain stores FileVault passwords?

My MacBook Air drowned today and it was connected to an external hard drive encrypted with FileVault. I can't remember password for it. Will new Mac sync that password from iCloud or is the encrypted ...
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24 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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3answers
44 views

500gb take up space on my HD, but don't belong to any visible file or folder

I've got a problem: 500gb take up space on my HD, but don't belong to any visible file or folder. This may have something to do with a disk image of 500gb I created and deleted some time ago. Is there ...
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90 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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27 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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1answer
28 views

How to get my files of a Windows-formatted HDD?

I have a very new MacBook Pro. I have an old Windows laptop that died. However I suspect the hard disk is fine. I also have an external HDD that I had used as a backup for that machine (although I ...
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67 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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61 views

Yosemite: iCloud Drive offline

I'm wondering if it is possible to use iCloud Drive as a 'mounted drive'. As of now, I have a photo's collection of around 50GB. I'm keeping the files on an external HDD as it hogs my Macbooks' SSD. ...
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1answer
252 views

In order to downgrade to Mavericks from Yosemite do I need to reformat my hard drive and use the internet recovery to reinstall Mavericks?

From the research I just did, it seems that I had to upgrade to Yosemity using a different drive!? Where as I added Yosemity into the main drive. Am I right in thinking that I now can only downgrade ...
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2answers
28 views

Cannot mount encrypted Time Machine

I've an encrypted Time Machine with the password saved on the keychain. Now, trying to plug in, it ask me the password and it's always wrong. I've checked hundreds of times and it also allowed me to ...
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1answer
116 views

Mac boots into log on screen quickly but takes long time to log into account

I just replaced the stock OEM hard drive on my 2010 macbook pro 15 inch with a Samsung 840 Pro SSD 256GB and installed Yosemite on it from scratch with USB (the first time i am using Yosemite). Now ...
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1answer
38 views

how can i reformat the hdd in HFS+ using Ubuntu without using mac

I have input a HFS+ hard drive which is mac osx into ubuntu because while booting up mac there a error of blinking folder with a question mark so i searched in google and the information say that the ...
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24 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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25 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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100 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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1answer
81 views

Macbook Pro i7, Hard Disk space filling up before my eyes (Mavericks)

I have 84GB free on my Flash hard disk but in 3 hours it fills up to 0B. When I restart the 84GB is there again and something starts eating my HDspace again. With Grand Perspective it does not show ...
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Mac is hard resetting how do I cancel through recover mode [duplicate]

I accidentally did a hard reset on my mac by doing control+c when my mac was booting up and I typed /sbin/fsck -fy because it supposed to fix my mac so that it gets unstuck of safe boot and then it ...
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1answer
66 views

Mac stuck in safe boot

I accidentally did a hard reset on my mac by doing contorl+c when my mac was booting up. I typed /sbin/fsck -fy because it was supposed to fix my Mac so that it is no longer stuck in safe boot. It ...
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46 views

Can anyone access Time Machine backups from a stolen HDD?

My external drive with all my Time Machine backups has been stolen. Can anyone access this data or will they need my Apple ID and/or password?
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22 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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109 views

I updated to OS X 10.9.5 and my external hard drive no longer shows up on the desktop

I recently updated to OS X 10.9.5 and my toshiba 1tb external hard drive no longer shows up on my desktop.
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1answer
39 views

What is the proper way to save Application Information Before Reformatting My macbook?

My mid-2009 17" Macbook running Mavericks is running really slow and constantly freezes. I went to Disk Utility and ran "Repair Disk," but after about 3 minutes it said: "Disk utility can't repair ...