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

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How to back up Boot Camp before upgrading my hard drive to an SSD?

I have a Macbook Pro which has a 750GB HDD. I'm currently using Bootcamp to run Win 7. If I want to upgrade the HDD to a SSD but keep my stuff from both the OS X side and the Win 7 side what are the ...
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1answer
256 views

Stress test a disk

I have a 1Gig disk that's about 3 years old. The other day it went south, with OSX telling me that it could not repair it and leaving it in read only mode. I was able to salvage everything on it. Now ...
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2answers
71 views

Corsair GS 180 slowdown in Macbook Pro over a year's time

I installed a Corsair GS 180 SSD (revision 5.020000) in my Macbook Pro, around this time last year. (July 2012.) I ran the Blackmagic Disk Speed Test application, and ended up with: Write: 219.0 MB/s ...
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1answer
26 views

some system binaries are lost

After installing some RAM my macbook pro would not start, diskutil showed HDD failure. Booting in single user mode and running fsck several times to repair the disk lead to a running system. But ...
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2answers
4k views

Aperture: Library over multiple Hard Drives

I switched to Aperture some time ago. And right now, the moment has come that I want to save some space on my internal hard drive. What I found on the Apple website is this: I can't seem to find ...
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1answer
440 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 ...
2
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1answer
240 views

The safest, most reliable way to move files from drive A to drive B

I am trying to come up with the safest way to move data between two drives, designed to handle the worst possible circumstances. For example: if you were trying to move the only existing copies of ...
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1answer
502 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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1answer
3k views

How to resize Mac OS Extended (Journaled) partition after linux messed it up?

I've tried to use Ubuntu on my macbook pro (6,2), but it was a total and abject failure, mainly due to poor hardware support. So, I have given up on my little experiment and just deleted ubuntu and ...
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1answer
945 views

Why is my Mac able to write to my NTFS hard drive?

My question is one of confusion. All over the internet I have seen people looking for the ability to use a Mac to write to NTFS, or people formatting drives to FAT32 so that their Mac can share a ...
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3answers
343 views

If I put my old mac hard disk system drive with bootcamp in a USB caddy, after replacing it with an SSD, will it appear as 2 drives when plugged in?

I'm going to replace my MacBookPro system drive / hard disk with an SSD. I will then re-install MacOS and Windows via bootcamp. The original drive will be put in a USB caddy to be used as an external ...
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1answer
1k views

Running out of hard drive space, yet Disk Inventory shows only 190GB used vs. 480 GB used in HD Get Info? How is that possible?

I'm down to 20GB on a 500GB hard drive and would like to know what's eating up the disk space, so I can clear out any large things I no longer need. 2 screen shots are showing me Disk Inventory ...
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1answer
2k views

How can I browse the hard disk attached to my Airport Extreme from my iPhone?

I have a gen 5 AEBS which has a total of 3 HFS+ partitions across 2 USB hard drives (USB hub in the middle). On my Macbook Pro Retina, I can see all 3 HFS+ partition in the Finder. Finder shows the ...
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1answer
258 views

Recover GPT Hard Disk files on Windows

My friends 2008(ish) era macbook pro died recently but the SATA HDD is fine, I have removed it and plugged it into a Windows 7 machine. I can see in Paragon Partition Manager that the drive is a GPT ...
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0answers
4k views

Macintosh HD missing after failed catalog btree rebuilding

There is an I/O error in the hard disk in my MacBook Pro running Mountain Lion and as I start it up, a progress bar fills up and then it shuts down on its own. I attempted to recover the files in ...
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0answers
428 views

MacBook Pro Mid-2009 13 inch does not recognize replaced hard drive

As the title states, I recently got a used Hard Drive from another MacBook Pro and installed it into my MacBook. The problem, is the laptop will not recognize it at all. The old hard drive just goes ...
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0answers
346 views

How to prevent “Incorrect block count for file” file system errors from occurring?

On our 10.7 Lion installation, 3 out of 9 drives are repeatedly suffering from Incorrect block count for file errors when running a diskutil repairVolume command. The drives are having ...
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1answer
144 views

Hot File Clustering with multiple partitions

I'm planning a performance-oriented clean install of OS X 10.6 and I was wondering if the hot file clustering feature will exists only on the boot partition or if there will be one for each partition ...
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0answers
481 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 ...
3
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1answer
727 views

Fusion Drive: free space on SSD

Is there a possibility to find out how much storage is free on a SSD of a Fusion Drive disk (SSD + HDD as a logical device)? The structure I use is this one here: $ diskutil list /dev/disk0 #: ...
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1answer
684 views

restore MacBook from sparse image

I recently wiped my MBP hard drive as well as installing a new SSD. I have a sparseimage backup of my old drive (created with Carbon Copy Cloner) that I want to restore onto the SSD. I've tried to ...
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1answer
54 views

HD failure - recovery possible if system can't see drive?

I've got a 2.5" SATA HD in an enclosure, plugged into a Mac Pro (trying to see if I can use Data Rescue II to recover anything). Unfortunately, my system is not seeing the disk, either in Disk ...
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1answer
5k views

Is there a way to recover a disk when File Vault is used?

I'm trying to restore a crashed hard drive. Using Softtote Data Recovery for Mac, I have recovered 8000+ files. I can't use any of them. Brainstorming with the user, he forgot that he has File Vault ...
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2answers
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Is it safe to shake/move macbook air while its running?

I had this laptop and i know it's flash drive so i dont think there are moving parts, is it safe to shake it or move it without worry ? turn it upside down while its running ? how safe is this ?
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1answer
72 views

How can I recover the key of an encrypted hard-drive?

I still have access to the disc, but I lost the piece of paper with the key. Can I somehow recover it? I already had a look into Keychain Access Utility, but I couldn’t find it.
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2answers
508 views

How to take out HDD (hard drive) from a G5

G5 is totally defunct, I trying to take out the HDD for archive purpose. But realize ... there is no way for me to take out the casing. Any idea?
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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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1answer
1k views

Is it safe to reformat drive during Recovery Mode install?

I've inherited an almost brand new 13" Macbook Pro Retina. I'd like wipe the hard drive clean and start with a fresh install of Mountain Lion. I've done this a million times before... but never while ...
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1answer
5k views

How to move all of my mails to external HD and make them appear only when its connected

I have 200 GB of mails, and I would like to place them in an external hard drive, and to make the appear, in the Mail.app, only when this external HD is connected. Is this possible?
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2answers
13k 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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2answers
158 views

Why does the application in focus hang for several seconds when a drive spins up?

This has happened to me for as long as I have used Macs, I think. Occasionally, Mac OS X remembers a long-forgotten disk, sometimes external, sometimes internal, and spins it up for some reason. And ...
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1answer
709 views

how do I reset or clear the list of Volumes?

I am running into this problem when I accidentally remove a USB drive without properly ejecting it or similar and then plug it back in. When my drive is plugged back in it will apear normally, for ...
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0answers
209 views

Recover a deleted encrypted partition?

As my previous external HDD threw some disturbing SMART Warnings, I bought a new Hard Drive. It arrived earlier today, I formatted it and made some backups onto it at it has more space and I wanted to ...
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5answers
188 views

Mac Pro 2007 crashes repeatedly

Yesterday my Mac Pro 1,1 (2007) running 10.7 started freezing up. It keeps on doing this after restart. Usually it will perform one task, but when asked to do a second, it freezes. The cursor will ...
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0answers
181 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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0answers
226 views

OS X breaks if I apply HFS compression to the whole volume. What do I need to exclude?

OS X breaks if I apply HFS compression to the whole volume. (It won't boot.) What do I need to exclude? I've been able to compress large parts of it, but then I had to restore after I compressed ...
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1answer
883 views

Can I Mount a Hard Drive in Mac Pro Tower as Read Only?

I'm trying to recover data from a failed external Fantom RAID Drive enclosure by plugging the drives into a Mac Pro tower, but I'm concerned that OS X might write to the disks and jeopardize the RAID ...
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2answers
3k views

Should I stop using my Mac while the hard disk is being cloned?

As one of my backup solutions, I use an app (SuperDuper!, if it makes any difference) to make a clone of my Mac at the same time every evening. Sometimes I am still working at that time. What I want ...
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3answers
3k views

Is it necessary to eject an external drive before sleeping? [duplicate]

I have a question similar to a previous one about ejecting before shutting down. Is it necessary or recommended practice to eject external drives before putting a Mac to sleep, whether it be via an ...
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1answer
451 views

External hard drive unplugged while running iTunes…Corrupted files

I have nearly 2TB of Movies and TV Shows copied to iTunes on an external hard drive. Last night, I was unplugging a cord behind my desk and I accidentally unplugged my HD. Well, when I plugged it back ...
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2answers
2k views

Fix fusion drive partition mess from bootcamp assistant

I have a self made fusion drive on a 2009 iMac using a 256gb ssd and a 3tb hard drive. After the 10.8.3 update yesterday I tried to create a bootcamp partition but unfortunately it failed after hours. ...
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1answer
1k views

Can a Time Machine drive have several partitions, or does Time Machine need the whole HDD to itself?

Is it possible to partition and external drive an use only one of the partitions for a Time Machine backup? Or does Time Machine need its dedicated hard drive? (I've never used Time Machine before.) ...
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2answers
325 views

Inconsistent disk capacity reports in OS X - I'm missing 365GB of my 2 TB

Coincidentally I have noticed that the disk capacity reports in "About this Mac" and the Terminal when running diskutil list both report inconsistent capacities for an external hard disk drive. This ...
3
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1answer
326 views

Can hard-drive benchmark apps damage your hard-drive?

I want to measure the read/write speed of my hard-drive. I came accross this page recommending Blackmagic Disk Speed Test. There is a frame saying this: Note: Blackmagic Disk Speed Test puts hard ...
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1answer
2k views

Eject disk and get error message “Disk not ejected properly” when unplugging disk

I have an external USB Western Digital disk I use for Time Machine backups. I eject the disk, the disk icon disappears. I wait a few minutes, then unplug the disk. I end up with a "The disk was not ...
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1answer
45 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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1answer
4k views

Unable to adjust partition of USB drive with Mountain Lion Disk Utility

I have a 500 GB USB drive, which I once partitioned into two parts: one encrypted—Mac OS Extended (Journaled, Encrypted), and the other not—Mac OS Extended (Journaled). Now I want to change the ...
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2answers
2k views

How to fix mounting problem with external drive?

I have a USB external hard drive with AC adapter that works fine with an Ubuntu machine. But when I plug it into my MacBook Air it lists one partition on the finder, and does not mount the other. ...
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0answers
110 views

Figuring out bad sectors in my Macintosh HD [duplicate]

As the title suggests, what's the best way to go about doing this? I'm talking about figuring out bad sectors in the hard drive that already has OS X installed, and that I'm using right now to do ...
3
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1answer
3k views

Disk Utility: Incorrect number of file hard links

I'm running Mountain Lion on my Mid 2009 MBP. Recently(for last few months) it's acting really slow. Simplest actions are taking forever to perform. So I verified disk using the Disk Utility and it ...