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

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Use two external hard drive docks to retrieve data from RAID 0 disks

Some while ago, I fried the power supply inside of my WD MyBook Pro Edition II, leaving the disks intact but rendering the enclosure itself totally useless. So now I have two 500GB 3.5" SATA drives, ...
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4answers
382 views

Which has more effect on software launch times: processor, RAM, or Hard Drive?

I am looking into getting a new Macbook Pro (hopefully they'll have late 2013 models). I currently use my early 2011 Macbook for iOS app programming and light graphic design work with Pixelmator. I ...
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2answers
644 views

OS X accessing external drive

I noticed that when I plug in an external NTFS HDD something is reading it and it doesn't stop for a long time... I checked with fs_usage and saw this: 23:26:54.189404 read F=5 ...
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397 views

How can I recover photos from a damaged MacBook?

My grandson spilled orange juice on my MacBook and ruined it. I bought an iPad to replace it, but I had dozens of old family pictures stored in iPhoto on the MacBook. Is there any way I can recover ...
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318 views

Freezing, disk i/o problems iMac

I have a desktop iMac with Snow Leopard installed on it. Every few minutes, I get freezing and "kernel disk0s2: I/O Error" in my console. I did some research, and found that my hard drive (a WD I ...
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2answers
2k views

Why do I get back more disk space when I restart my Macbook on Mountain Lion 10.8.3?

I frequently run low on disk space on my laptop. When I'm down to my last gig or so on my 256MB SSD (as reported by iStat Menu), I'll get various warnings from the OS and apps saying that I'm running ...
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11k views

Powerful external hard disk health checker on Mac?

Is there any powerful program in Mac to check the health status - mainly bad sectors - of an external (USB) hard disk, and to recover them?
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44 views

RAID system with external hardrives

I have a few external ssd hardrives (My Passport, in my case). I would like to integrate them within a system that provides reliability in case of failure, by producing redundant information across ...
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987 views

Can Macintosh HD partition be resized while a BOOTCAMP partition resides on the same physical volume?

I have a HFS-partiion, a bootcamp partition and 100GB free unpartitioned space "in between". How can I resize my Mac partition to use it? All resizing controls seem to be disabled, here's the ...
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3k views

Can I replace optical drive with 2nd hard disk on MacBook?

I have a unibody MacBook, late 2008 I think. The optical drive failed and I wondered about adding a second hard disk. Is this simple to do?
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3answers
2k views

Time machine: network hard drive vs Time Capsule

I read that is possible to set up a Network Hard Disk in order to connect it to the router and perform wireless Time Machine backups on the Hard Disk. What are the pros and cons of using a Network ...
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3k views

What does “DOE compliant” mean in Disk Utility?

When erasing a drive with Disk Utility, you have a couple options. An insecure wipe, a single pass of zeroes, a "DOE-compliant" 3 pass, and a DOD (Department of Defense) 7 pass. DOE doesn't stand ...
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755 views

How can I mount disks via cron in Mountain Lion?

Is there a way to mount disks in Mountain Lion that works with cron? The following command works fine from the Terminal: /usr/sbin/diskutil mount disk1s6 But when executed via my crontab, it ...
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4k views

How to partition an SSD that fails with error 69888 - couldn't unmount disk?

I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
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3k views

Are there any wireless hard drives work well with Lion or newer Macs?

Are there any wireless hard drives to use with a mac? I need to copy paste files from and to this hard drive, when the disk on my mac is full. Do I need to look for a specific Apple drive or will any ...
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773 views

How to auto mount internal SATA hard disk drives after power failure/interruption?

In a Mac OS X 10.7.5 (Lion) system with two internal SATA drives, the internal drives are connected via a Highpoint Rocketraid controller and are configured without any RAID thus operating in legacy ...
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333 views

Is “The disk copy of 'filename.psd' was changed since…” dialog a sign of harddrive issues?

I saw this message and I'm not sure if it is a sign of harddrive issues (corruption, etc) or anything I should be concerned about. It popped up in Photoshop when saving. Might also be worth noting ...
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628 views

Any partition software just to partition unused space?

Currently I have one portable external hard drive which I use for Windows. It's 1TB and over 300GB is used space. I would like to partition it so I can access the unused space from my Mac. Can you all ...
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209 views

How can I hide a local disk in Finder at root level?

I want to hide some local disks from left pane (Devices section) in Finder. I want to remove them from the list of all disks at root level. What is the command in terminal? PS: I can't unmount ...
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271 views

I'd like to upgrade my MacBook Pro's RAM and hard drive. What brands are reliable?

I do heavy web development/web design and run my software on a MacBook Pro (Mid 2009) 2.8ghz model. I use Adobe products, run virtual machines in Parallels, have multiple browsers open, text editors ...
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716 views

Mac surface scan tool

I've had an SDcard lose its partition table, so I want to run a surface scan of the sdcard to make sure it's physically okay. Can you suggest a disk surface scan tool that runs on the Mac? Free, ...
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5k views

How to restore from a Time Machine backup when there is already a user account set up?

I can't figure out how to access my Time Machine backups since Apple replaced a defective hard drive. Some Background: My setup: iMac 24" (Early 2009), 3.06 GHz Core 2 Duo, OS X 10.7.3. I have been ...
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3k views

Trouble with SSD/HDD in Macbook Pro Mid 2009

When my original HDD crashed I wanted to change it and choose a Samsung HDD (I don't not the exact model anymore). The problem with this one was that the system often hanged for several seconds until ...
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3k views

external hd mac ntfs 3g could not mount

I got an external hd "clickfree hd" but when trying it with my Mac I get the following error: ntfs 3g could not mount, error I have tried NTFS-3G, MacFuse and FuseOSX. I'm running Lion but this ...
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5k views

Why is my MBP not detecting my HDD/Optical Drive?

I've had a second hard drive in one of those optibay things in my MBP 5,1. It's been super awesome, until it stopped getting detected today. The second hard drive is getting power and is spinning up, ...
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975 views

After hard drive upgrade, battery not charging?

I just installed a new hard drive into my Macbook Pro 1,1. I had a little difficulty when I initially installed it because the monitor was not turning back on. After re-opening the MacBook Pro (with ...
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1k views

Hard drive unmounted and missing then back?

I have a 15" 2011 MBP with the OWC data doubler (a generic version). In my primary drive position (the spot where the factory HDD was) I have an OCZ-VERTEX 3. In the data doubler (the spot where the ...
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4answers
2k views

Where can I buy the four hard drive screws for my MacBook Pro 2011 15" (pic)

I'm trying to find four replacement mounting screws for the 2.5" hard drive in my MacBook Pro 2011 15". Here's a pic of the four screws (one attached to hard drive). I tried Googling and can't find ...
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232 views

How Do I Transfer A Project File Created Using iMovie 7 To A Hard Drive?

I've made a movie project in iMovie 7, but it's taken 3GB of space on my hard drive and I am lacking space right now, so I need to move it out onto a external hard drive. How can I do this?
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30 views

Compatibility of iMac G3 hard drives, to try to recover data

I have an old iMac 400MHz slot-loading G3 model #M5521 that won't power up (think it's a dead power supply), and I'm trying to get the data off my hard drive. I also happen to have a 333MHz ...
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39 views

Two different USB 3 HDD docks - disk partitioned on one not usable on the other

I have two different 3TB SATA hard disks: a Toshiba DT01ACA300 a Seagate ST3000DM001. I also have access to two different USB 3 HDD docks: a Connectland DOCK-CNL-YJK3519-V3+ES a Focus SATA + IDE ...
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45 views

I want to add a 5TB HD (NTFS) to my time capsule and have access to it from both my Mac and my PC's

I want to add a 5TB HD (NTFS) to my time capsule. I have both Mac and PC's and will like to access the drive from both. I can see that the drive is attached in airport utility on my windows pc but I ...
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17 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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269 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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618 views

Resizing dual boot partitions in Yosemite

I have a dual boot Macbook Air with Yosemite and Ubuntu. I would like more space on my Ubuntu partition and need to therefore reduce the size of the Mac partition. I assume this will cause some damage ...
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195 views

How do I point Sonos to my music on an Airport Extreme connected hard drive?

I am attempting to set up a music library to use on my wifi based Sonos system. I have moved a copy of my iTunes music collection to an external USB 2.0 drive (Seagate FreeAgent GoFlex Drive) which ...
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136 views

Should I defrag my SSD before creating a partition for Boot Camp?

I have a 500GB SSD in my MacBook Pro. I have been using my laptop for over three years - and it was migrated using Migration Assistant from a previous laptop that I had been using for five years ...
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23 views

Combining two RAIDs

I have an OSX machine which houses 2 RAIDs made of 6 disks. The 2 RAIDs contain 6TB of data; they were set up with Disk Utility: A 'safe' 4TB RAID-1 (mirror) made of 2 x 4TB disks, 3.68TB used A ...
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261 views

Toshiba 2TB External Drive Stopped Being Recognised

After a lot of searching on the internet I have been unable to find a solution to my problem. There are many people having similar problems, but no solution seems to work for me. I have a 2013 ...
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978 views

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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53 views

can't connect two hard-drives to my airport

I have two seagate usb 3.0 4tb drives full of music that I want to access wirelessly. I have my Bites USB 3.0 hub powered by DC 5V cord. I want to connect these to my airport extreme (5th gen), but ...
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470 views

Why is a secure erase 'not necessary' for SSD's?

I'm about to trade in a 2010 MacBook Pro with an SSD. However, I'm unable to do a Secure Erase from the recovery disk (as I used to do with mechanical hard drives before selling or giving away a ...
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1answer
854 views

Can't mount Macintosh HD volume - journal issue

My MacBook Pro (Mavericks) keeps booting into OS X Startup Utility. Disk Utility shows Macintosh HD volume as unavailable - not mounted. Running fsck_hfs -l /dev/disk0s2 returns: ** /dev/rdisk0s2 ...
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5k views

Can I simply install a fresh OS X without a thumb drive?

I've always installed a new OS X install via a thumb drive. However, at that time, I only had a single hard drive. Now, I have two hard drives, but the question is: Do I still need a thumb drive now? ...
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55 views

Apple support, mac with unencrypted drive

Because of an incident happened a few days ago, I'll have to bring my MacBook Pro to an Apple Store to get it repaired. Problem: Even though automatic logins are disabled, and to access the computer ...
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54 views

How should I restore a backup of my user account from a .dmg?

I have on my external hard drive a .dmg which is a backup from when my internal hardrive was breaking. Fixing the (internal) hard drive I then went on to erase it. And reinstall OSX in the process it ...
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2answers
6k views

How to disable Time Machine for an external hard drive

My wife has a MacBook Pro and two external hard drives; both of which currently contain a Time Machine backup of her MacBook Pro hard drive. Now she wants to "turn off" Time Machine for one of her ...
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30 views

“disk full” error — quota disagrees with system information

When I try to download anything or create/save new files, it fails saying "Disk full". Entering quota in terminal tells me around 417600 blocks have been used out of 512000. However, going to About ...
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3k views

Mid-2012 MacBook Pro hard drive failure (maybe? not really.)

Mid 2012 MBP with OEM hard drive. I booted it this morning to a flashing question mark folder. I happened to have an external drive with OSX on it, booted to that external drive just fine. I opened ...
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203 views

How do I remount USB Flash Drive or SD card?

I noticed that I could remount my USB hard drive through terminal after I eject it by typing diskutil list to find the drive and diskutil mountDisk /dev/disk"X"... So I tried to do the same with my ...