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

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Can Time Machine be used as a Drobo system

I came across some products by Drobo that let you use an array of external hard drives seamlessly. Would Time Machine be able to do something similar? For example, suppose I have HD1 with photos ...
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How can I make my computer believe a disk image is a hardware disk?

I'm trying to do some research on TimeMachine right now. I don't want to purchase an external hard drive, just to learn about some software, and so I'd like to be able to tinker with the settings, by ...
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448 views

How do I write-protect a partition of a USB drive on OSX that can work cross-platform?

I bought a bunch of USB sticks that I want to give as a gift to friends and clients, with some files on them. I'd like to have the files non-erasable (though I realise they can format the drive, I ...
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171 views

fsck_hfs keeps crashing when trying to repair my Time Machine volume

I've got my Time Machine volume (direct attached, USB) corrupted by accidentally flicking the switch while it's running. Now neither Disk Utility nor fsck_hfs can repair the drive. Investigating it ...
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3k views

Is there room for two drives in the 27" 2012 iMac?

I've looked around a bit, but can't find anybody saying whether there is room in the new slim iMac for an extra internal SSD. I used this tutorial about a year ago to add an additional SSD to my Mid ...
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2answers
407 views

How can I get my laptop's existing system onto a new replacement drive?

I'm planning to swap out my early 2011 MBP's drive for a larger capacity one. I'm running Mac OS 10.7.5. I have available a 1 TB external USB-connected drive that I'm using for Time Machine backups. ...
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1answer
622 views

Can't boot from Snow Leopard DVD

I bought a new hard drive for my 2011 MacBook Pro and did the following steps: Backup using Time Machine Replaced the hard drive Put in a Snow Leopard DVD (10.6 from ~2009) Booted holding down the c ...
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2answers
2k views

How to copy all files with extension/filetype in terminal?

I want to copy all files in ~/Desktop with the extension .jpeg to my flash drive. How can I do this in the terminal?
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1answer
128 views

How to export files from hard drive in Snow Leopard CD?

I have a macbook 5,1 that won't startup. I'm going to reinstall Snow Leopard with the CD, but is there a way to export some of the files that are in it? I can't seem to gain access to them through the ...
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3answers
2k views

Why does my 3TB Seagate HD keep formatting as a Logical Volume Group

This is really annoying. I have a brand new Seagate 3TB 7200 RPM hard drive that I am trying to format/partition in Disk Utility. Every time I change any settings or erase the drive, it changes it to ...
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2k views

Mac Could Not Restart After a Kernel Panic

I was forced to restart MacBook Pro when a kernel panic happened about 2 hours ago... Since then my computer would just stuck on the grey screen with the Apple logo every time I tried to reboot it. ...
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36 views

Any need to verify disks after hard reboot?

About every few days I need to reboot my 2012 MacBook Pro Retina. I noticed these messages in the logs regarding "Journal is read-only and journal is dirty. Can not mount volume". Any need to ...
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1answer
168 views

Mid 2010 i7 Macbook Pro 6,2 stuck at Apple logo on boot

Recently my 15 inch Macbook Pro (mid 2010, i7) hasn't been booting normally (No drops, no spills, etc). It just hasn't been able to boot normally. The issue I'm having is it only goes as far as the ...
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3answers
2k views

Stress Testing Your Mac For Optimal Performance?

Stress testing maybe considered a useful way to determine if your Mac is performing at its optimal level of performance & may also be an indicator of faults of any components within your Mac. ...
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1answer
156 views

For the Apple SSD drives, will they run slower with less free space available?

From what I understand, most SSDs will run slower once there is 20% or less free space available, due to TRIM/garbage collection. However, are Apple SSDs the same way? The reason I ask is because ...
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1answer
432 views

Does mounting a large disk image require a certain amount of free space on the internal drive?

I've got a bunch of Mac disk images (.dmg files) that are 100 GB or larger. I'm currently on an iMac with a few hundred gigabytes of free space, but I'm going to be moving to a Mac laptop with 128 GB ...
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2answers
3k views

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
197 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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61 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
25 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
384 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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1answer
215 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
290 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
2k 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
772 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
287 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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1k 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
219 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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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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340 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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272 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
125 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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434 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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1answer
645 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
535 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
53 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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4k 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
1k views

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
71 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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259 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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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
906 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
4k 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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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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140 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
547 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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194 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
159 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 ...