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

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395 views

Yosemite Startup Manager After Downgrading to Mavericks

I downgraded from Yosemite Public Beta to Mavericks by: Created bootable Mavericks USB Booted Mac to the Mavericks USB Went into Disk Utility > Selected HD and Erased HD Restored to Mavericks Time ...
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1answer
2k views

Macbook boots up to grey 'prohibited' symbol

I'm having an issue with my '09 13" Macbook Pro. When I boot it up, it seems to be booting normally until about thirty seconds in, when the Apple symbol is replaced with a kind of 'no-smoking' symbol, ...
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201 views

Invalid Argument when trying to write to external disk

I have an external USB 3 box on my mini (OSXS 10.9.4) that holds 4 drives (not a RAID). When I try to access either of two drives and write data to them, I get "Invalid argument" (the 3rd drive works, ...
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90 views

Spinning down hard drives that are not boot drives

If I were to put an ssd in the superdrive of an early 2009 24" iMac and used this as a boot drive while keeping the hdd in it's original place and using as a storage drive, would the storage drive ...
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162 views

1 TB hard drive - with only partition showing only 800 GB capacity

I have a 1 TB hard drive, which is correctly displayed in Disk Utility, but the actual (and only) startup partition only shows 800 GB of space. There is no unallocated space either. According to the ...
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41 views

Cannot mount HDD used in Time Machine

My HDD was working perfectly fine until recently. It began when my mac tried to perform a time machine back up, but it failed saying that the back up directory could not be created. So i restarted my ...
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39 views

Gained space on reformat and restore?

I was killing a Ubuntu partition, and had to do a full reformat to repartition properly. The operation would recover 20GB of space. I then took the following steps: I made a recover disk I backed ...
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47 views

Unable to view files in hard disk after editing /etc/fstab

I have followed a tutorial to make my NTFS formatted HDD editable (now I regret doing so). I have edited fstab using these commands without knowing much what they do. sudo nano /etc/fstab LABEL=NAME ...
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87 views

ntfs-3g not working on my fresh OS X install

I have got a new Macbook Pro with Mavericks on it. I wanted to be able to write to my external HD which is using an NTFS file system. So I installed the ntfs-3g driver as usual. But unlike before, ...
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223 views

Cons of the native NTFS write support (osX)

I'm currently using the NTFS native write support this way (look at LosephJG's reply): https://discussions.apple.com/thread/5544031?start=45&tstart=0 It works great with a 1tb HDD and a 32gb ...
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46 views

Restoring a backup HD on a Mac without restoring OS X Mavericks

I recently downloaded Mavericks and this made my Mac slow down a lot. So I took it to the technical service and they reinstalled 10.8.5. Now I want to restore my information on the Mac through Time ...
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144 views

Find mount points from network mounts in Disk Utility

I know lots of ways to find mount points for my mounted drives, both locally or on the network. This question is specifically about 'Disk Utility'. Disk Utility does a fine job of telling me info ...
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22 views

I need a background process which redirects a link based on whether or not an external hard drive is connected

Basically I have two iTunes libraries. One is my complete iTunes library which I store on my external hard drive. The other is a smaller version that I keep locally. I want to have a symbolic link ...
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555 views

Drive speeds … PCIe vs external thunderbolt SSD

I have a new 2014 MacBook Pro with 1TB internal PCIe SSD. Blackmagic Disk Speed Test is reporting read/write speeds of over 900MB/s. I am debating whether to swap this machine for a 512GB one (saving ...
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22 views

External drive in constant use the moment a track from it is added to iTunes

Adding tracks to my manually managed itunes library takes ages. I've noticed that the drive goes into a "constantly-in-use" mode (from the blinking led and spinning noise) the moment I drag a track ...
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156 views

Warning “disk full” while more than 100 GB space free in disk utility

Why does the system warn me for "startup disk full" while "disk utility" shows there are still more than 100 GB space free? The warning is in the form of a pop-up dialog. Not sure how many ...
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58 views

Clone whole partitioning scheme to smaller disk

I have the following on my secondary disk. As I am not satisfied with it I would like to clone everything to the other one which is smaller unfortunately. /dev/disk2 #: TYPE ...
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116 views

How to fix permissions with Repair Disk Permissions?

I just installed Xcode 5.1 and the latest round of updates. I followed that with a Repair Disk Permissions. For some reason, Apple installs its software with broken permissions. I then ran Repair ...
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220 views

External Hard Drive died – How do I recover those files from Time Machine?

My external hard drive, which I was backing up with Time Machine, finally died. I want to retrieve some of those files, but when I go into Time Machine I can't navigate to those files because Time ...
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81 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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95 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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62 views

Duplicate PERMISSION SCHEMES in “Get Info” window for HDs /in OSX -on new /newer Macs

I am running Mavericks (booted from external drive): from a super-fast solid-state HD (Thunderbolt v1 cabled); I reinstalled the 10.9.2 OSX a while ago - due to permissions rebuilds /other weirdness, ...
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2k views

Reclaim unallocated disk space on macbook pro?

I had portioned my hard drive into two (mac and Windows). Later I portioned the primary (mac) into two but figure my Windows were not loading so I changed it back into one. The problem is there is ...
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285 views

Why does the diskutil shows I have two local hard drives?

I was trying to get my NTFS drive to work today and I discovered that the diskutil thinks I have two local hard drive. This phenomenon is not occurred on my Macbook Pro. Do anyone know why? Here is ...
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221 views

Migration issue - duplicate user account

I've got a situation that I don't know how to resolve. I've had a Mac setup and all worked fine. I've bought an SSD drive, installed Mavericks and used the migration assistant to move all the stuff ...
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66 views

iMac14,1 disc: 3Gb/s or 6Gb/s?

Does anyone have an iMac14,1 with the following disc? ST1000LM024 HN-M101MBB This is a 5400 RPM Sata-II interface drive. I am curious regarding it, as I went in to the Apple Store to see what the ...
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56 views

How to read apple HDD on linux without root privileges?

My question is very simple. I just want to read my Apple HDD on my linux computer without root privileges. My goal is only to read and copy some file from my home directory (in Documents). Currently ...
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103 views

Diagnose if corrupted volume is due to hardware problem

This morning when turning on a Mac laptop, it suddenly announced that an external backup disk (which was connected overnight) "can't be repaired". Disk Utility also says: Disk Utility can’t ...
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195 views

Reduce impact of Disk IO on performance

I've never found that OS X has been exemplary at handling responsiveness under Disk IO, but Mavericks has made it so bad that I've been barely able to use my machine whenever a backup kicks in. ...
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101 views

Splitting user and system across multiple volumes

I'm migrating from a large HDD (1.25TB DIY Fusion Drive) to a pair of SSDs (256GB + 1TB). I want the 256GB one to mount as /, and the 1TB one to mount as /Users. In previous versions of OSX, you could ...
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1k views

How do I get my iPad to show up under DEVICES in iTunes 11.1.3?

I've been having problems seeing my iPad (and my iPhone, haven't tried my iPod) under the DEVICES section on the left (where the STORE, GENIUS, PLAYLISTS, LIBRARY are located) in iTunes 11.1.3. It ...
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296 views

Can't encrypt external hard drive

I'm trying to encrypt an external drive of mine using Apple's built in drive encryption tool into OS X through Finder. The drive is formatted as Mac OS Extended(Journaled) and I'm plugging the drive ...
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589 views

Unable to create new partition with Disk Utility on external drive

I'm trying to create space on an external drive to clone my mac as a bootable volume with CCC. With Disk Utility I cannot modify it for some reason (probably because the same disk is used with Time ...
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57 views

Used iMac with lion installed, no discs. Do I upgrade to Mountain Lion? Rename HD?

Just bought a used iMac (mid 2011) with Lion installed on it. I do not have the install disc so I am wondering if I should upgrade to mountain lion or continue as is and hope I never need the system ...
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849 views

Is there a “windirstat”/“Disk Inventory X” type iOS app? (ie app for visualizing hard drive usage on iOS)

This is a pretty simple question. Assuming you know what WinDirStat &/or Disc Inventory X do, which is visualize the usage of your hard drive on a file-by-file basis, sized in proportion to the ...
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430 views

Macbook Air hard drive crashed, download Lion without paying again?

2 days ago my girlfriend's MacBook Air crashed (mid 2012, running OS 10.8), only showing the infamous "folder" icon. Usual stuff did not help, reboot pressing alt, cd, etc. We went to an Apple Store ...
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205 views

copied files from one drive to another showing incomplete progress bar

Copied files from one drive to another showing incomplete progress bar in mac. When recopying them it seems as they were complete.
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140 views

What is the limiting factor in /dev/zero speed?

I have installed 4 brand-new SATA hard drives in a mac pro. My OS is running on a fifth drive (SSD). I run this command pv /dev/zero -tpreb | sudo dd of=/dev/rdisk1 bs=512k for many hours to ...
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198 views

Is there a way to boot on iMac from usb using a different OS and access osx files to back them up

I am having issues starting up my iMac. I would like to know if i create a bootable usb with Ubuntu or any other OS, would i be able to boot with it and access the OSX drive? I able to do this in ...
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1k views

Dual partition a large drive for use by Mac and Windows

I have a 3TB USB3 drive that I want to use between my Mac and Windows laptops. A 1.5TB partition will be used for Time Machine and another 1.5TB partition will be used by Windows for file storage. ...
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526 views

How to select which disks are allowed to sleep?

There is an option "Put the hard disk(s) to sleep when possible" in Mac OS X's preferences: Is it possible to configure which disks Mac OS X can put into a sleepy state? For example, I want to ...
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192 views

Should the Sudden Motion Sensor be disabled with a hybrid hard drive?

I've read that it's ok to leave the SMS on with non-stock hard drives, but I've also seen that it can crash an SSD. I have a Momentus XT with 4GB of solid state memory and 500GB of spinning platters. ...
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2k views

Install Linux Mint on a dual-drive MacBook Pro with Windows and OS X

I have a Macbook Pro 13 mid-2012. It was shipped with a 500GB HDD, to which I added an additional SSD drive (128GB). After installing my SSD in a caddy, thus replacing the optical drive, I installed a ...
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105 views

ZEVO: anyone have access to a current road map?

I've recently installed ZEVO on my Mac Pro and I'm looking forward to what ZFS will provide with data integrity, pool management and drive handling. Wondering if there is a current road map?
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56 views

Is there a way to monitor the stack of execution in order to find the longest hangs?

Related to this unsolved mystery: apple.stackexchange.com/questions/62416/why-do-i-get-serious-execution-lag-on-clicks-application-switching-and-general I'm wondering if there's a way to see which ...
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247 views

Can hard drives have their own sleep settings?

Is there a tool that will allow me to set the sleep settings on a per-drive basis? I've recently done the optibay mod on my MBP so I have an HD+SSD setup and I'd like to be able to make the magnetic ...
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798 views

how do I create an ISO/CDR file from a hard disk?

Presently I am attempting to back up my whole computer's primary hard drive to an ISO file. When I attempt to do this using Disk Utility, I perform the following steps: Open disk utility and choose ...
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463 views

ISO 9660 on Lion. “No Mountable Filesystems”

I have a collection iso images that all mount on an imac running snow leopard but not on my 2011 MBP with Lion. They are formatted iso 9660, but I don't know at what level. When I mount them with ...
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335 views

Hard drive space disappearing after mounting external drive

I have recently purchased a WD Elements SE 1Tb external drive. I have set it up with dual partitions: FAT32 (primary) and HFS+ (secondary). I also have a Macbook Pro 13 running Snow Leopard 10.6.6. I ...
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How does my core drive have less storage available than the partition?

When I open Disk Utility, I have a core drive and a partition underneath it. But the core drive shows only 19 MB of storage left. on the other hand, the partition shows 55 GB free. My computer is slow ...