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

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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 ...
3
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1answer
1k views

Is it a good idea to seal off the optical drive bay after installing a second HDD?

When installing a HDD instead of the SuperDrive: Does the bracket, which holds the HDD, seal off the optical drive slot in the unibody? If not, it seems that debris and dust could get in. (I guess ...
2
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4answers
14k views

What is filling up my hard drive so fast?

Last night (Because my hard drive was almost full) I freed about 4GB. Then I came back to my Macbook about 3hrs later (I left it idle) and Its was full again. Is something is eating my mac? If I go ...
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2answers
17k views

MacBook Pro flashing question mark but I can't repair because hard disk not found in disk utility

Today my MacBook showed up some wheel of death and I waited and waited and then after a long time (10 minutes) decide to force shutdown. Ok, I know its not a good idea but I've done this before and ...
2
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4answers
8k views

What can I do to check the integrity of the hard drive and all its files, to see if they are corrupt or not?

Recently there has been some files disappearing (in iTunes), and I'm not so sure of the extent of this problem yet. Perhaps it may have been an iTunes upgrade bug, but I'm not so sure. What can I do ...
2
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3answers
8k views

How can I tell if my iMac's hard drive is dying?

A couple of days ago, my three-year-old iMac locked up. When I rebooted it, it only displayed a folder icon with a flashing question mark. After a couple more reboot attempts, it booted. I ran Disk ...
0
votes
4answers
6k views

Need to replace a hard drive in a macbook

I have been asked to "replace a hard drive in a macbook". I'm able to physically swap out the drive, but I have no idea how mac software works. I have some questions: If I put in a new hard drive, ...
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2answers
7k views

OS X Snow Leopard - Can't boot from HD, Target Mode or CD

Today my computer started getting really slow and freezing alot, so i rebooted. HOwever it won't boot up again, keeps getting stuck on the grey screen. Here's what i've tried: Startup in safe mode ...
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3answers
929 views

How do I not accidentally eject external drives?

I have a Mac Mini with a few external drives connected that I use as a home server. Normally the Eject buttons next to the drive icon are really handy as they let me eject an external drive very ...
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2answers
1k views

Encrypted external drive usually prompts for password, despite being in keychain

I have an external encrypted drive, and almost every time I plug it in, it'll ask me for the password, even though it's already in my keychain. If I type the password in, it'll mount as expected. ...
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2answers
16k views

how can I delete a partition (coreStorage logical volume?) from the Terminal?

I finally understood why Disk Utility will not change the partitions on my HDD, even though I added the most recent one myself (maybe significant: to test Yosemite DP) with it. Now I see it says it ...
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4answers
285 views

Time Machine External Drive

What factors are important when selecting an external hard drive for time machine backups?
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1answer
2k views

How can I do a fresh install of OSX Mountain Lion onto my SSD for my Macbook?

So I just got a SSD for my MacBook Pro (early 2011). My macbook is sluggish and has so much stuff that I don't use anymore and just want to start over from scratch basically. I did a time machine ...
2
votes
4answers
9k views

How to eject my external drive when my Mac refuses because of Spotlight?

I have plugged an external disk to my Mac. Now, I want to eject it. But my Mac stubbornly refuses and says that an application may be using the disk. I have not launched any app neither opened any ...
2
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1answer
5k views

MacPro Hard Drive 3 TB or Larger formatted to Logical Volume Group by Disk Utility

I have an Intel MacPro in which I recently installed a new internal 3TB hard disk. I attempted to format it in Disk Utility using the standard GUID partition map and encountered a strange problem. ...
2
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2answers
2k views

Which format for external disk for performance?

I'm using OS X Mavericks and just got a new external hard disk. I don't need to share it with a PC (so no need for FAT) but I do want it to have better I/O performance. I'm a bit confused by the ...
2
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2answers
4k 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 ...
2
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4answers
53k views

MacBook Air: What taking up all my hard drive space [duplicate]

I have a 128gb MacBook Air running Lion. I am constantly having issues with disc space, but have no idea what is consuming it all. When I look at the disc utility break down, it says about 80% of the ...
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5answers
19k views

How do I fix my SSD after installing Yosemite and Enabling TRIM? No boot & can't erase

I recently upgraded to Yosemite, enabled FileVault and foolishly enabled TRIM (had no idea it wasn't supported). Upon restart, my machine gets the grey screen with the crossed-out circle of death. ...
1
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1answer
7k views

Will 'Internet Recovery' necessarily erase my hard drive?

My Mac is booting to the 'question mark' folder. I option-booted to 'Internet Recovery'. Before I proceed, I would like to know: Will 'Internet Recovery' necessarily erase my hard drive? Can anyone ...
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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
365 views

Will internal HDD spin down when a Mac is booted from another internal SSD?

On my MacBook Pro, I am planning on removing the optical drive and adding an SSD to the mix. Since Apple doesn't support this configuration, I don't find any official documentation covering SSD in the ...
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2answers
7k views

How to upgrade HDD to SSD and replace the optical drive with HDD?

I am trying to understand the process of switching out my HDD for an SSD and then replacing my optical drive with the same HDD just removed in a late 2011 Macbook Pro 15.4". Is there any benefit to ...
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3answers
24k views

Why is my hard drive still full after deleting files?

I'm new to Mac. I have deleted many files from my applications folder, downloads, music, etc. to make clean Mountain Lion installation. After installing Mountain Lion I can still see in About This ...
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1answer
802 views

Compatible SSD for Macbook Pro (replace HDD)?

Any special compatibility concerns when replacing the HDD on a MBP with an SSD? I am running Parallels with XP Pro and Ubuntu and have been disk bound for some time. Not too concerned about size, ...
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4answers
4k views

How to recover data from unreadable hard drive?

I have an 80GB Fujitsu 2.5" hard drive that died about a day ago and had nothing backed up. Is it possible to retrieve data off of it somehow.
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2answers
4k views

How can I disable the 2nd hard drive in my 27" iMac?

I have an 2010 27" iMac with an SSD and a regular hard drive. Now that I've been using the machine for some time and have not come close to filling the SSD, I'd like to disable the spinning hard drive ...
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9answers
10k views

What is the benefit of using flash memory in the Macbook Air?

I don't understand why Apple does not use SSD drives in the Macbook Air like some other manufacturers to (e.g. Asus, Samsung). The technical specifications of the Macbook Air on Apple's website never ...
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9answers
27k views

Macbook HD “Other” all the Sudden Almost Full

As you can see in the below image, my HD "Other" category is almost full. A couple of days ago, I randomly kept getting a popup saying that my disk was almost full. Then I went in and noticed the ...
6
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3answers
38k views

What is the best free hard drive diagnostics app for Mac OS X?

My MacBook Pro (described below) fell 5 feet while it was powered on. Would the sudden motion sensor be able to turn off the hard drives in time? Also, can anyone recommend the best (free) hard drive ...
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5answers
5k views

Do 2.5" SATA HDDs in an external enclosure need extra power over USB with Windows?

MacBook Pro 2008 motherboard failed. Upon sending it to an Apple authorized repair center, they confirmed this. They gave me the laptop back so I could open 'er up and get the hard disk out, which I ...
5
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1answer
706 views

What's the easiest way to free up disk space on my iMac with a huge photo library?

This is a hybrid hardware/software question with a few more factors than the typical "freeing disk space" question. I have an older iMac with (I think) about a 250 GB hard drive. It's been running ...
4
votes
2answers
2k views

How can I restore my system, using Snow Leopard, after hard-drive replacement?

I had a nearly full 500GB drive in my MacBook Pro, running Snow Leopard. As the near-full capacity was becoming problematic, I bought two 1TB drives, went home, ran Time Machine on one of them, and ...
4
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2answers
1k views

JDiskReport is damaged, can't be opened

I have tried downloading and running JDiskReport 1.4 a few times now, and after unzipping it and clicking on the executable I get the message: "JDiskReport" is damaged and can't be opened. You ...
4
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1answer
427 views

How can I write files to iPod's internal disk on Windows?

when trying it I get the "can't do that" icon How can I copy new photos to the iPod?
3
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1answer
4k views

Unable to read last block of the device

I'm mid way through replacing the hard drive in my MacBook Pro (mid-2009). I've created a boot disk (10.8) on a SD card which I am booting from. On trying to format the new drive with disk utility ...
3
votes
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 ...
3
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2answers
290 views

New Larger Hard Drive on MacBook Pro

I have a 500 GB hard drive, and I need more space - I want to go up to 1TB of space. Is it possible to swap out hard drives and carry all my installed software, documents, images, settings, etc. ...
3
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1answer
4k views

Can I move Applications to another partition?

My Startup disk partition is just 20 GB and I'm running out of space. What's the safe way to transfer Applications folder to the other partition? Can I just move all apps into a folder on the other ...
3
votes
1answer
540 views

Is it possible to use Time Machine on a shared USB Hardrive?

I've a iMac with an external HD derserved to Time Machine. I also have a MacBookPro. Is it possible to make this config : Share the disk on the iMac so that the MBP sees it on the network Ask Time ...
2
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0answers
16 views

Can't erase unmountable external HD

My external HD isn't mounted and can't be repaired by Disk Utility. However, I'm also unable erase the disk: $ diskutil list disk2 /dev/disk2 #: TYPE NAME ...
2
votes
3answers
351 views

How do I get an operating system onto a new hard drive?

I will be installing a new 500GB hard drive in my macbook. It is a late 2008, aluminum, 13-inch screen. Once I install it, how do I get an operating system that's 10.7 or newer (downloaded from the ...
2
votes
1answer
159 views

How to empty MobileBackups.trash content

I noticed that OSX reports a wrong disk space amount, reporting that "Other" space is near to 170Gb. Digging into the issue here "Huge inconsistency in disk space measurement, missing 50% of the ...
2
votes
1answer
146 views

Huge inconsistency in disk space measurement, missing 50% of the disk

I own a MacBook Pro 13 Retina, OSX reports disk usage as 450Gb, but utilities such as DiskInventoryX tells a different story reporting 226Gb as used disk space: How can I convince OSX to give me ...
2
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2answers
122 views

Permanently Disable/Ignore Secondary Disk?

I have a 256G SSD and a 1T HDD in my 27" iMac. The 1T HDD is dying due to hardware failure. Is there a file in OS X similar to /etc/fstab in Linux where I can prevent this 1T HDD from mounting? I'd ...
2
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1answer
312 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 ...
2
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2answers
534 views

Selling my broken Macbook. How to make sure there's no personal information on the hard drive?

My Mac won't turn on but I'd like to sell it for spare parts. How can I make sure there's no personal information stored on the hard drive for the buyer to retrieve?
2
votes
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 ...
2
votes
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 ...
2
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1answer
307 views

Time Machine deleting backups from several months ago (but not the oldest)?

During its "Cleanup" phase, Time Machine has recently been deleting backups from several months ago—even though these aren't the oldest backups, and my backup drive isn't full. My backups go back to ...