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

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671 views

Samsung EVO 480 *and* stock hard drive not recognised by Snow Leopard installer

A friend of mine came to me with her Macbook Pro 8,3 (17 inch, 2011). The hard drive had failed, and booting into the recovery disk didn't show a working hard drive. I went out and bought her a ...
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1answer
182 views

Using Windows to boot up a hard drive with Mac OS in a virtual window

I have the latest Mac OS X Mavericks installed onto a hard drive which I can boot from. As I mainly use a Windows machine, is there a way to boot up the hard drive in a virtual window on Windows, ...
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1answer
259 views

Is it safe to delete heapdump.hprof.old?

I'm on a mac book air running OS X 10.9.2. I want to free up space. I see that a file called headdump.hprof.old is occupying a lot of space. Is it safe to delete it? What does it do?
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2answers
507 views

NTFS Drivers on Mac [duplicate]

I recently purchased a MacBook Air. I have an external 3TB Hard Drive that I would like to use, however, I have used this drive to backup files from my desktop (Windows) computer and the drive is ...
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1answer
122 views

New Hard Drive Install Failure

I got a problem with my 2012 Mac Book Pro, I'm trying to install a new 750 Go Sata 3 with 7200 t/min WD Black in it. The problem is when i try to reinstall OSx Mountain Lion on it, it didn't find the ...
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1answer
134 views

Fusion Drive constantly spinning up and down

I've got a 1TB Fusion Drive (with a Seagate 7200 rpm hard drive) in a Late 2013 27" iMac. While the iMac is asleep, the hard drive spins up and down every minute or so (without fail), creating an ...
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0answers
157 views

Why is cloning my MacBook Pro slower since I upgraded it to SSD?

Last week I replaced the 512GB 7200rpm HDD in my Mid-2010 MacBook Pro with a 512GB SSD (Crucial 550). The performance improvement in most areas is welcome, but one thing is now considerably slower: my ...
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3answers
970 views

How to replace hard drive without reinstalling the whole system?

I recently purchased a 1TB solid state hard drive Samsung Electronics 840 EVO-Series 1TB 2.5-Inch SATA III Single Unit Version Internal Solid State Drive MZ-7TE1T0BW. I hope I won't need to manually ...
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0answers
37 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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1answer
174 views

Damaged hard drive due to magnet damage (Macbook Pro)

I am able to get internet recovery on my Macbook Pro that I previously wiped with a magnet I was trying to re-install OS X Mountain Lion again but when I got to the 'choose a disk' there was no ...
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1answer
78 views

Dropped computer. Will not boot. Unable to find driver for this platform \“ACPI\” MACOSX version

I dropped my computer two days ago. At first it would not boot up at all, not even showing the grey circle with the line in it or anything at all. I did internet recovery and did some cleaning up of ...
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1answer
53 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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1answer
39 views

Raid 0 - Why am I constantly losing data?

I have a Mediasonic 4 bay drive enclosure like this with four 3TB Toshiba HDD's attached to my hackintosh machine. The drives are in a RAID 0 configuration setup with Disk Utility. I've had this ...
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5answers
2k views

How to identify and fix files with corrupted / inaccessible disk blocks

I have a late 2011 Macbook Pro, running Mavericks 10.9.2. Its sole HDD is a 750GB drive, formatted with Bootcamp. It's still running reasonably well, but in running a defragment pass on it, I've ...
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1answer
32 views

Apple to Windows External Hard disk file system error

I have a Toshiba 1tb hdd. I bought an apple laptop few weeks ago and the hdd has been working properly. Today I wanted to move some files from my old windows pc to the mac. When I connected the hdd ...
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2answers
12k views

How can I let Windows XP read Mac OS Extended (Journaled) drives?

How can I let another PC using Windows XP (Service Pack3) read Mac OS Extended (Journaled) volumes? Windows XP shows nothing.
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1answer
1k views

External drives won't mount on restart

One of my staff just got a new Mac mini with the USB 3 ports and Mavericks. It has 2 Seagate GoFlex 3TB hard drives connected: 1 for Time Machine, the other for Dropbox files. When the computer is ...
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1answer
69 views

How can I log OS X Server disk performance?

I know Activity Monitor exists to view disk i/o and other performance metrics. However, does Activity Monitor have the ability to log any of these metrics? If not, how can I log these metrics into a ...
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2answers
1k views

Mac OS X Mavericks fails with disk corruption error

I have a similar problem described by the question posted to this forum labelled "OS X Mavericks upgrade - disk/partition failure". I, however, didn't stop the installation process. Instead, I ...
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2answers
1k views

Time Machine cannot find external toshiba hard drive after OS X 10.9.2 update

I used my Toshiba Canvio USB 3.0 external hard drive without any problems for the past year. Today, I received a system alert: Backup failed. The backup disk "Time Machine Backups" is not ...
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1answer
1k views

Replaced hard drive - trying to do a clean install of OS-X on 2011 Macbook Pro

I've seen plenty of how to's on how to upgrade if you have a working installation of OS-X, however I purchased this macbook used, it needed a hard drive and a keyboard. So I put a new hard drive in ...
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0answers
69 views

Macbook often won't shutdown if external not manually unmounted first

If I don't have my external hard drive plugged in, or if I eject it first, the computer shuts down very fast thanks to my SSD. But if I don't eject it first, it either takes much longer to shut down ...
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2answers
5k 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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1answer
332 views

Change HD in Macbook Pro Retina Display 13" - SSD 250GB

I have a Macbook Pro Retina Display 13" model with a 250GB SSD which was brought in January this year. I always knew that there wouldn't be enough storage space for me at 250GB however always planned ...
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1answer
165 views

Photo library on external network drive

I am quickly filling up my hard drive and would like to move my iPhoto library to an external drive. I understand that it must be on an HFS+ formatted drive to properly work. I would prefer to attach ...
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2answers
1k views

Should I put the SSD in the Optical or Main Bay when replacing Optical Drive?

I have 2010 MBP. Wanted to put SSD in optical bay (and use it as main boot drive) because main bay has SMS (motion detection) that HDD would use. The only problem is that optical bay in my computer ...
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1answer
84 views

How do I make sure the firmware for my newly installed SSD is up to date for Mac OSX? Note: cannot use optical drive

Installed a 2nd HD (SSD) onto my 15" MBP and wasn't sure how to upgrade the firmware. SanDisk 120 GB SSD. Anyone know?
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0answers
25 views

Mid 2010 MBP 15" - Manually Upgraded MBP, what should be my next steps?

I've been reading up on what to do after manually upgrading my MBP, and answers vary per individual/profession. I replaced Optical Drive with an 120GB SSD, and made SSD into bootdrive, HD into ...
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0answers
30 views

Recovery of Deleted Partition That Has Been Partially Overwritten

I refer to How to recover a deleted/replaced HFS+ partition from external drive?, which provides an easy way to recover partitions that have been deleted but are still intact. I have a harddrive ...
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1answer
113 views

Hard Drive Formatting Error in Terminal

I have tried formatting and partitioning this brand new hard drive and it has failed on multiple computers using multiple methods. It is a LaCie Porsche Design 4TB hard drive. Here is the commands I ...
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1answer
259 views

How to automatically mount airport connected hard drive as read only for a user account

I have an external hard drive connected to my airport extreme. I am able to access the drive without any problems. However, I have user accounts set up for my two young children. I want to give access ...
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2answers
329 views

Apple infinite load. I/O error and even a new HD

My mac mini from the 2011 refused to boot. Apple logo and loading image forever.. I tried cmd+s: Went through all the steps from the applejack, tried fsck -fy, all semmed pok, Tried cmd+v: It ...
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0answers
215 views

Configuring SSD over-provisioning on Mac OSX

I'm in early investigation stages of adding a SSD drive to my MacPro. Fragmentation problems can lead to serious performance problems on an SSD. There are a couple answers to this problem: TRIM - ...
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2answers
13k views

Blinking question mark on folder on boot

I am attempting to boot up my 2009 MacBook Pro, but when it starts it immediately shows a white screen with a 'question mark folder' — it keeps blinking until the computer shuts down (unless I keep it ...
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0answers
36 views

Can a mac do a bitwise copy of a USB disk with proprietary disk format?

I have a USB disk with a propietary format that I want to bitwise clone to a new identical drive. I have CCC but the disk doesn't show up in Finder. It does appear in Disk Utility. I tried ...
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0answers
35 views

What to do if repairing one disk made the other unrecognized?

Originally I had two drives, an HDD and an SSD (my boot drive). The HDD had a 100gb partition on it that used to have windows installed on it, but that partition got locked and became unusable. When I ...
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3answers
473 views

“Other” just ate my hard drive [duplicate]

When I woke up his morning, I had >80 GB of free space on my hard drive. Over the last four hours, in which I wasn't even around, something filled my hard drive completely. I would attach a ...
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1answer
125 views

How can I use an external hard drive as a secondary internal hard drive on OS X

So I have a 2011 iMac that has a 500 GB. Hard drive inside. I could not buy a new computer but I bought a 2 TB. external hard drive that I connected using firewire, since it is almost as fast as ...
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1answer
64 views

Internal Hard Drive Not Visible

I have an early 2009 MacBook running OSX 10.9. Last week, my hard drive crashed. I bought another and installed OS 10.9. Everything works. I do not, however, see the drive's icon on my desktop. ...
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1answer
2k views

I can't boot into Windows 7 on Boot Camp

I have a mid-2009 MBP. A couple of years ago I swapped out the optical drive for an SSD, made the original hard drive a Boot Camp partition and installed Windows 7 on it. It has been a brilliant "best ...
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0answers
120 views

Raid two external hard-drives with read/write support on Windows & OS X

I have a USB 3 HDD enclosure that currently has two 1TB drives in it. I am looking at buying another external USB 3 HDD drive (not an enclosure). I am currently running the external enclosure with the ...
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1answer
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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0answers
85 views

Does free disk space actually help mac performance?

Anyone will tell you that freeing disk space will make your mac faster - specially noticeable if your disk is almost full. I don't know if that's true. Is it? And why, exactly? I just don't see how ...
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0answers
943 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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1answer
227 views

Is there a way to change order of physical disks in Corestorage

I upgraded existing system to a "Fusion drive" - corestorage volume - consisting of existing 300GB HDD and new 120GB SSD. Instead of creating a new corestorage drive I went with the route of ...
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1answer
6k views

Unable to format / erase hard drive

I have an external HD that died on me a while ago and I'm trying to see if I can format / erase it to start using it again. The disk does not show up in Finder but I can see it in Disk Utility. When ...
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2answers
116 views

How to restore a deleted HFS+ partition table?

I have an external 2TB hard drive with one HFS+ partition, and accidentally dd'ed over the first ~500 MB of it. I have carelessly placed some new partitions in an attempt to repair it, because I had ...
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1answer
371 views

Disk Utility reports “missing thread record” on my external HDD

I have an external 500 GB HDD that's about five years old. I just turned it on and it made a bunch of clicking noises and failed to spin up immediately, though it did so after a few seconds. To be ...
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1answer
1k views

Can't mount primary HD, Disk Utility shows Invalid Node Tree Size

There are similar lines of questioning in the forum, but few valid responses. Apologies for reposting. I've searched for hours on end... I'm a tech consultant (software, not hw) helping my relative ...
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4answers
3k views

How to set VirtualBox in order to access external hard drives in guest Win7?

I have installed VirtualBox in order to use Windows 7 as guest on a Macbook Air running Mavericks (mainly to be able to use a printer that has no drivers for Mac). Also, I have installed the ...