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

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I can't write to my flash drive, and it is already in the MS-DOS (FAT) Format. Why?

This is my first question on this website. I am using a Mac Air, and I have a flash drive in which I can read from. I am able to copy files from this onto my Desktop, or anywhere on my computer for ...
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1answer
1k views

Trouble Mounting NTFS drive on OS X 10.9

Mounting NTFS drives works in OS X natively. Mounting drives with fstab is common and can be seen here and here and here. I was able to successfully do it with the following addition to my fstab. ...
2
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1answer
668 views

Going in for an apple repair, do I need to remove my second hard drive for the superdrive?

The right fan on my mac stopped working, I have scheduled an appointment at the mac store genius bar (its still in warranty). I have installed a second hard drive in place of the super drive, and ...
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2answers
2k views

Thunderbolt SSD or USB 3 SSD - Need an external SSD drive

I'm planing to get an SSD(500GB) probably Samsung EVO or Corsair(LS,LX,GT) & seagate thunderbolt adapter for my macbook pros' 2011 and 2013 Retina. ⌘ - I've already upgraded my 2011 MBP with ...
2
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4answers
7k views

partition map check failed because no slices were found

I own an early 2011 MacBook Pro running Mac OS X Mavericks. Recently, I tried to make 50 GB partition using Disk Utility but the whole process didn't complete, and I had to restart the system as it ...
2
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1answer
9k views

MacPro Hard Drive 3 TB or Larger formatted to Logical Volume Group by Disk Utility

I have an Intel MacPro in which I recently installed a new internal 3TB hard disk. I attempted to format it in Disk Utility using the standard GUID partition map and encountered a strange problem. ...
2
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2answers
288 views

Discrepancy between availble space and capacity on external HD

Disk Utility report (Consistent with Finder) Mount Point : /Volumes/partition2 Format : Mac OS Extended (Journaled) Owners Enabled : No ** Number of Folders : 10 Capacity : 1.9 TB ...
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1answer
799 views

Resizing without DESTROYING the second partition of a disk

I have a disk that was partitioned in two. The first partition was 1.8TB and is called TIME MACHINE. The second one was 1.2 TB and I call it TOSHIBA 1.2TB. I would like to reduce the first partition ...
2
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1answer
281 views

Should I use raid 0 with my optibay drive?

I installed a 120gb SSD today. My optibay currently holds my MBP stock drive (5400 RPM HD 320GB). Since they have different memory sizes, should I put them in raid 0? The only reason why I want raid 0 ...
2
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1answer
7k views

Macintosh HD not showing up on disc utility

I am trying to do a clean install on my Macbook Pro 13" from 2011. Here is what I did so far: 1) Booted up on my USB Stick with Mountain Lion Installer mounted on it 2) Opened up Disc Utility and ...
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3answers
12k views

Why doesn't my Mac Pro see my new 4TB SATA drive?

I purchased a Seagate ST4000DX001 4TB SATA Hybrid Drive (SSHD) and installed it into my Mac Pro (six core 3.33 GHZ MacPro5,1) in one of the internal SATA drive bays. However, the system didn't see it ...
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1answer
9k views

Install Mavericks from usb drive on new HDD

I replaced my old HDD with a new one. Also I created a bootable usb flash (8GB Toshiba) with Mavericks using DiskMaker X. I restared Mac and pressed Option key, but I see no option to boot from. I ...
2
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1answer
1k views

Entering Time Machine on an external drive does not work

If I open an external drive, or an folder on that drive, in the Finder, then enter Time Machine by clicking on the menu bar icon and selecting "Enter Time Machine", then Time Machine runs, but it ...
2
votes
1answer
368 views

Macbook freezes, disk errors, symptoms of SSD death?

Macbook freezes, system disk "disappears" from system, I get errors about reading/writing. Spinning ball of death appears on the screen, I am able to move pointer for a few seconds after first ...
2
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1answer
2k views

Copying files from a failing drive

I have a 2008 iMac in which the drive is failing. SMART status seems ok although AHT reported 4hdd/11/40000000 SATA (0,0) which is the code for disk failure AFAIK. Normal boot fails, Firewire target ...
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1answer
554 views

Hard drive will not format - bad drive or enclosure?

Today, I received from Amazon a Thermaltake BlacX 5G hard drive docking station and a 2 TB Western Digital Green drive. I inserted the drive and was able to format it into a one partition drive. I ...
2
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1answer
423 views

Time Machine deleting backups from several months ago (but not the oldest)?

During its "Cleanup" phase, Time Machine has recently been deleting backups from several months ago—even though these aren't the oldest backups, and my backup drive isn't full. My backups go back to ...
2
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1answer
134 views

Disk Utility: choose disk or volume?

When using disk utility to verify/repair permissions (or verify/repair the disk itself), I've never been clear whether I should perform operations on the disk ("WDC WD1200BEVE-00WZT0" in my case) or ...
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2answers
10k views

Can't unmount the disk during Mac OS X install

My MacBook started to get really slow recently. Now it can’t start up properly anymore. All I see is the Apple logo and then it shuts down. I've tried rebooting multiple times, but I've seen the same ...
2
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1answer
208 views

Hard drive defect? Help me recover my music!

I've an old iPod Classic with 80 GB of Storage, suddenly it stopped showing any music. I can still access the files on it (with Windows Explorer). Copying all files is possible but it stops at a ...
2
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1answer
1k views

Macbook Pro early 2012 SSD retire block count

I've recently bought an OCZ Vertex3 480 GB SSD (VTX3-25SAT3-480G) for a drive upgrade. This is what I did after I purchased the drive: Backed up my system with Carbon copy cloner Installed the SSD ...
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2answers
567 views

'09 mac mini hardware upgrade advice

Hello all I have an early '09 Mac mini 3,1 (Intel Core 2 duo 2GHz, 1GB RAM, 120GB HDD) which I need to upgrade soon as it is slowly dying (i.e., runnning an IDE like netbeans while having chrome open ...
2
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1answer
868 views

Hard disk performance drastically declined after OS X Lion upgrade

After upgrading to Lion (10.7.1) a while ago I'm currently faced with a very poor performance of my system. It's a 2.2 GHz Core2Duo with 4 GB RAM and a 500GB HD. E.g. the JBoss6 AS needs about 5 ...
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3answers
9k views

How can I tell if my iMac's hard drive is dying?

A couple of days ago, my three-year-old iMac locked up. When I rebooted it, it only displayed a folder icon with a flashing question mark. After a couple more reboot attempts, it booted. I ran Disk ...
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1answer
2k views

Issues with replacing the internal hard drive in a mid 2007 macbook

I have a white 2007 MacBook with a 2.0 GhZ intel Core 2Duo processor with a 80GB Serial ATA @ 5400 rpm. Recently my hard drive crashed so I got a new 500Gb Western Digital AV-25 WD5000BUDT 500GB 5400 ...
2
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1answer
525 views

Time Machine multiple Disks Backup over Network

I have a Mac OSX Server 10.6 with a Harddisk attached to it which has been configured as Time Machine destination. Over the Workgroup manager I have assigned the TM destination on Computergrouplevel. ...
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2answers
202 views

Prevent disk reordering on boot

I have 3 physical drives in my Mac Pro with OSX 10.6.4. Occasionally after rebooting the machine, the disk numbering changes such that the /dev/disk# does not reference the same drive as it did before ...
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votes
3answers
187 views

Missing space on Fusion Drive (partition problem)

I know this or similar problems have been discussed, but (to be honest) I can't see the trees for the wood. I tried to create a partition on my fusion drive (1TB Hd + 240 MB SSD). No partition was ...
2
votes
1answer
193 views

Macbook freezes (keyboard, mouse, audio not working) with external hard drive

I've installed some apps on external hard drive, as I don't have enough space on my macbook's drive. Sadly macbook behaves really weirdly few times a day. Basically it freezes completely (although ...
2
votes
1answer
229 views

Repair an exFAT drive on Mac OS X after it's been improperly disconnected

Very often an exFAT external disk stops appearing in OS X. It doesn't appear in Disk Utility, Finder, diskutil list or About this Mac/System Report/USB. The only way I have found to fix it is to boot ...
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0answers
98 views

Hidden files taking up hard disc space?

I’ve used DaisyDisk to analyse my file usage on my MacBook Pro (mid–2012), but the numbers aren’t adding up. Of 500GB, it shows ~425GB used, but the breakdown only adds up to 280GB. The diagram itself ...
2
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1answer
75 views

Windows using Bootcamp won't read any USB memory sticks

I just installed Windows 10 on my MacBook (Early 2015, OSX El Capitan 10.11.2), and after everything set up I tried to plug in my External Hard Drive. I made sure this HD would and does work in ...
2
votes
1answer
237 views

Time Capsule backup consistently fails

I am running El Capitan (10.11.3 beta) on a 2011 27" iMac. Recently, my Time Machine backups (I have a Time Capsule connected to the computer directly by USB) started to fail. First, I got a message ...
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0answers
24 views

CMD+R wil not start Recovery HD - Fusion Drive

I have recently my Macbook Late 2009 with a SSD crucial 500Mo (Data doubler). I made a Fusion Drive with no problems, then I re-installed el Capitan again with no issue (except I tried to re-install ...
2
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0answers
87 views

Why my Mac is showing only 250 GB out of 500 GB?

I have MacBook Pro (13-inch, Mid 2012) It comes with a 500 GB hard but today when I checked it it's only showing 250 GB. Please tell me why is that? Macintosh HD: Available: 81.57 GB ...
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votes
2answers
120 views

Replacing hard drive in Macbook late 2009 what do I do about osx?

I'm replacing the hard drive in my 2009 macbook (13" unibody). How do I go about installing OSX and can I go straight to Yosemite or do I have to install Mavericks and then upgrade? It's my first ...
2
votes
1answer
173 views

Help partitioning “free space” with utility disk

I've been trying to partition my harddrive to have ~50 gb of unallocated space (right now there's one partition with the operating system on it, so I would like to have that plus the free space). This ...
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0answers
254 views

Fixing damaged hard drive after OSX update

I recently tried updating my Macbook Pro Retina to OSX El Capitan, however believing this to be a simple routine update, I did not backup my computer. Of course, the update was unsuccessful, somehow ...
2
votes
1answer
222 views

Photos App : Using Photos App on a library that is stored on a USB Flash Drive

I would like to store my Photos library onto an external USB Flash drive. I have found other articles explaining that it was possible to store a Photos library onto an external USB SSD or HDD and ...
2
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1answer
92 views

How do I recover my data/OS after accidentally writing over my main hard drive with an img file using dd? [duplicate]

I accidentally wrote over main hard drive with an img file using dd. This thread is the similar but my case is that I accidentally wrote my main hard drive. I have a late 2013 MBP 13" Retina 256GB ...
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0answers
73 views

Hard disk corrupt twice in 24 hours

My Macbook Pro 13" (2011) had a Seagate 1TB hybrid drive installed as a secondary drive some 4 months ago. Yesterday the volume somehow became corrupt and unable to mount. I managed to format it using ...
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0answers
62 views

Move single user Time Machine backup drive to OS X Server

I have an external hard drive which is currently used as a Time Machine backup drive for a single machine. I'd like to move the drive to my Server machine and use it for network backups for all my ...
2
votes
2answers
144 views

Split Macintosh HD into 3

At the moment I have 1 250GB partition on my mac (Macintosh HD). What I want to do is split my hard drive into 3 partitions. This is because I want to dual boot with Windows 8.1 and make a reserve ...
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0answers
82 views

Lost partition on WD 1.5 TB external drive

My 1.5 TB WD drive failed out of nowhere and now it shows up saying "The disk you inserted was not readable by this computer" This is how it shows up on Disk Utility This is what sudo gpt show ...
2
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1answer
4k views

Fixing a broken hard drive's partition map

I have a drive that is corrupted. Disk utility could not repair the disk, so I attempted to follow some tutorials and repair the partitions using pdisk and testdisk, but things have gone south. Now ...
2
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1answer
297 views

How to use Time Machine backup when hard drive is broken?

I have a MacBook Pro which I use Time Machine to back up usually weekly. Its hard drive broke recently. I got an exactly same hard drive and installed it into the laptop. How do I restore the ...
2
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1answer
1k views

Fan speed increased after upgrading to SSD

I just replaced my Macbook Pro's Mid 2012 HDD with a Samsung 850 EVO SSD. The performance is great and I am very happy, but I noticed that the fan seems to run faster. It is not a drastic change, but ...
2
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3answers
794 views

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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2answers
733 views

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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0answers
166 views

Limit hard drive i/o usage by one process (Dropbox)

I'm using only 5% of 1TB given by Dropbox and it regularly chokes my Mac Mini's HDD by "Downloading file list" too often. I think it's just a poor performance (it started since the last Dropbox ...