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

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Can I keep 1 specific backup on an external hard drive as it fills up and deletes older backups? [duplicate]

I've just moved 262GB of photos to a new external hard drive (1 TB), freeing up my MacBook Pro, 1 year old, which was dangerously low on space. I first backed them up on an existing external hard ...
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1answer
357 views

ExFAT partition on External HDD not showing up on Bootcamp Windows 7

So I partitioned one of my external HDD's for my bootcamp windows, just so I could install some Windows files without having to resize my partition by erasing it and reinstalling. Using disk utility ...
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1answer
61 views

MacBook dual drive is killing hard disks

Towards the end of last year I decided to remove the CD drive on my late-2007 MacBook and replace it with a 2nd hard drive (using an aftermarket 'caddy'). Several months in, my 1 TB WD Blue (2nd) ...
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1answer
272 views

OS X 10.5.8 - can I upgrade the OS?

I have an iMac from 2007-2009 and I want to upgrade the software to improve performance. It's running Mac OS X 10.5.8 on an Intel Core 2 Duo processor (2.66 GHz). It displays 4 GB of memory and 451.6 ...
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23 views

Don't have Time Machine back up a file again if a Tag is added to it

If I have a large file, let's say a 1 GB ISO file, and I add a tag to it through the Finder, so that there's a blue circle next to the filename now, then Time Machine will consider that the file has ...
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1answer
46 views

Eject button in Finder does not work

Every now and then (it seems to me especially after TM backups, but that is about the only reason I plug them in), I am unable to eject and external hard drive by clicking the eject button in Finder (...
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2answers
28 views

copying data from a removed mac book pro hard drive to another working mac book pro.

My partners daughter has frazzed her mac book pro due to water damage and has been told that the data can be recovered for £?????. I can remove the hard drive myself and my partner has a mac book pro ...
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22 views

Cannot reclaim partition as free space

I'm trying to reclaim some free space for my main SSD but I'm having problem, the disk utility won't let me expand. Btw I checked for core storage and it said there wasn't any. I can't use ...
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1answer
68 views

SATA cable problem?

I have a MacBook Pro 8,2 (15 inch, early 2011) running Yosemite (with encryption enabled). I have a strange problem that seems to relate to my boot drive (Samsung 840 Pro SSD). The system runs great ...
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2answers
119 views

Is there a disk space analyzer that lets you save the disk image?

I've seen there are a number of different applications for OSX that lets you visualize disk space and browse the category tree as an index - JDiskReport, DaisyDisk, Disk Inventory X, etc. I would like ...
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238 views

Time Machine drive doesn't mount; exit code 8

My Time Machine backup disk is borked. Normally, I'd just reformat and re-run the backup, but that disk also has a folder of pictures separate from the Time Machine files that I need to recover. The ...
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2answers
758 views

Ipod classic was corrupted, so erased everything off it using disk utility

So my ipod classic was corrupted, and i read somewhere that you could use disk utility to erase everything off it (i read somewhere that this was nessesary). My computer now does not register it as an ...
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1answer
461 views

Can I get bootcamp to use existing free space on physical disk?

When I installed my Macbook Pro, I had a 1Tb drive. When I formatted and partitioned the drive, I assigned 800Gb for OSX and left 200Gb free. I intended the free 200Gb to hold a Windows installation ...
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2answers
58 views

recovering erased hard drive with Testdisk

Recently I have accidently erased my harddrive with all my old mac files on it, and I have been trying desperatley to get it back. I have tried EaseUS recovery program and it has found my files (...
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1answer
3k views

Restoring Fusion Drive after error on partition erase

I think I'm lost and need some help with my Fusion Drive. I have new iMac Retina 5k with 3TB Fusion Drive and preinstalled Yosemite. Things I did so far: I was working on my iMac and had ...
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2answers
589 views

Accidentally used dd on my system drive

As is wanted to write an image to usb stick, I accidentally used my system drive (macintosh hd) as target. Command used: sudo dd if=/dev/zero of=/dev/rdisk1 bs=1024 count=1 Where disk1 was ...
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55 views

Are repeated FileVault-related harddrive problems a signal that I have greater hard drive problems?

I found a great answer in the forums for an incorrect block count/invalid free block count problem that Disk Utility diagnosed when logged in but couldn't see in Recovery HD mode. Turning off ...
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1answer
206 views

Ghost folders in /Volumes

I've had a problem today where when I plug my external HDD in, it creates a ghost folder in /Volumes with the same name, causing my hard drive to change it's path to /Volumes/HDD 1. This is messing ...
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1answer
99 views

Impossible deactivate the disk

Some time ago I split the hard drive (500gb) in two partitions (250 each), now I have first successfully erased one partition but I still have the second one (Mac HD 2, which runs Mavericks) but I can ...
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1answer
2k views

Macbook SSD Formatting Problem

I just got my Macbook here, and I got a USB with Yosemite 10.10. I opened up the Macbook, took out the old one, and put the SSD inside. My SSD fits perfectly (Samsung SSD 850 EVO 250GB). Then I ...
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3answers
100 views

Moving Macbook Snow Leopard drive to a Macbook Pro that had Yosemite installed: kernel panic!

My wife has a mid 2006 macbook that has been upgraded to snow leopard. I have a mid 2008 macbook pro that has been upgraded to Yosemite. I now want to give my macbook pro to my wife, and thought I ...
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1answer
115 views

How to Recover a gone OSX (mavericks) on MacBookPro?

I shutdown my computer for some reasons with power button (cold shutdown). Unfortunately, my OS i.e.,mavericksis gone at the moment and I have no backup from the Data and settings of that Hard drive ...
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207 views

Mac Mini 2014 hard drives

Do the Mini 2014 mechanical hard-drive versions have an M.2 ssd slot on their mainboard? EDIT: Let me clarify: the fusion version have a M.2 SSD on the mainboard slot and a 2.5" mechanical drive. ...
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72 views

Lost 32GB on my Macintosh HD

I created a 32 GB partition on my Mac where I installed Ubuntu, then I've deleted the partition from disk utility having errors, I restarted my mac and now I can't see the 32 GB space anymore. As you ...
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1answer
158 views

Option/speed Q's about best configs to upgrade early 2008 Mac Pro 8-core to SSD

I'm a first-timer on here. I too have an early 2008 MacPro 8-core 2.8ghz with 16gbRam and stock Radeon 2600 Vcard. It's fairly well configured, but I'm sure that can improve response for a reasonable ...
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1answer
254 views

iMac won't boot to internal drive, usb sticks - Apple hardware test extended fine

My iMac is being very odd. It won't boot using the internal hard drive. It chimes, starts the Yosemite progress bar and then changes and looks as if it is about to show me the login screen but then it ...
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2answers
242 views

Change drive “block size” to 4096

I just bought a 4tb hard drive and enclosure and attempted to encrypt it with truecrypt. I errored with a message saying the block size must be 4096 bytes for >2TB drive. How do i alter the drive to ...
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1answer
1k views

Can I backup a Time Capsule to a HDD drive connected to its USB port?

I have a 2TB Time Capsule and multiple external HDDs. I recently bought a 4TB external drive, now I'd like all my files, in all my HDDs to go to the 4TB drive that is connected through USB to the ...
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12 views

Kernel Panics on MBP mid-2010 with a Seagate Hybrid Hard Drive [duplicate]

I have a mid 2010 MBP 15-inch and I recently replaced the Apple manufacturer hard drive with a 1TB Seagate hybrid hard drive and I am running Yosemite. My MBP crashes randomly when I'm playing League ...
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58 views

Installed rEFInd Boot Manager, it seems HD re-ogranized

Before I installed rEFInd, I believe there were three partitions to my Mac, disk0, disk1, disk2. Now, when I run in the Command line diskutil list This is what remains: /dev/disk0 #: ...
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149 views

Making a full image of an installed system

I'd like to know if is possible to make a full, bootable, and restorable image of an entire Yosemite installed system, (that is, with all installed apps and settings) without using a commercial ...
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2answers
2k views

Enable writing to NTFS harddrive with non-standard name on Mac

I have a lot of NTFS hard drives back when I used a Windows PC. I'm trying to write to these drives with my Macbook Pro on OSX Yosemite 10.10.2. I'm going through this tutorial. I have to write this ...
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2k views

APPLE SSD SM0512F Media Equivalent

My Mac Pro (Late 2013) uses an APPLE SSD SM0512F Media SSD; I'd like to buy an equivalent SSD to use externally for cloning, backups, etc. I noticed on the PassMark website it shows performance ...
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31 views

Unknown Disk Space, can't touch it [duplicate]

My visible Disk Usage minus free space is out by 123GB. Clarification: Externally booted disk repair show no errors. Permissions have been fixed. Time Machine has had local off with: sudo tmutil ...
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211 views

How do I mirror my hard drive?

How do I mirror my hard drive? I want to preserve programs for which I've lost the license number.
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338 views

NTFS support for Mac

I am long time windows user with who just started using Mac. All my external drives(1 & 2tb 2.5 portable drive ) are formatted in NTFS. But I found that my mac cannot read or write on that. So, ...
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1answer
7k views

New “EFI boot” drive appearing after reverting OS X drive to HFS+

Months ago I performed a clean install of Yosemite, and as you can read elsewhere, drive was formatted as Core Storage. Later on I partitioned and put on Windows 8.1 through Bootcamp. Worked well for ...
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4k views

My MacBook won't recognize my external hard drive (Passport - that I use to back up the Mac!)

I'm not techie at all. But I manage the basics. I've always backed up my MacBook (2009) on a Passport. I just plug it in while the Mac is connected to power source & click the icon & it ...
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1answer
60 views

One of my start-up drives is missing

I have a Mac Pro (Early 2009) in which I am running two OS's. 10.10 on a Mercury Accelsior SSD and Snow Leopard on a conventional drive. Before upgrading the SSD from Mavericks to Yosemite all was ...
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86 views

Lost partition on WD 1.5 TB external drive

My 1.5 TB WD drive failed out of nowhere and now it shows up saying "The disk you inserted was not readable by this computer" This is how it shows up on Disk Utility This is what sudo gpt show ...
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2answers
272 views

Terminal command to arrange all files/folders by name on hard drive

Looking to tidy up my iMac. Like everyone, I have lots of files/folders on my iMac. When they get dragged and dropped, or moved around, they retain their position, and the only way to fix this is to ...
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1answer
405 views

Stop sign when booting from internal ssd, boot goes fine if the ssd is in external case

sorry for the long post and my english. I have an early 2011 Macbook Pro 13 which I purchased in july 2011 and it worked fine until one week ago. Since when I bought it i replaced the stock hdd with ...
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124 views

Unknown disk found using diskutil, cannot delete

Using the command line, I wanted to see all available drives on my machine. So, I type diskutil list and besides Recovery HD and Macintosh HD, I notice this: /dev/disk3 #: ...
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1answer
909 views

Why can't I mount a Samsung SSD 850 EVO?

I just bought a Samsung ATA III SSD drive, the Samsung 850 EVO. I installed it in an external enclosure that I know works with an ATA II drive, but I don't see the new drive in Disk Utility. ...
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131 views

Is disk image encryption slower than partition encryption?

I am considering two options to encrypt some data: add a new encrypted partition add an encrypted disk image Which option is faster in terms of disk read/write speed? I suspect that an encrypted ...
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1answer
91 views

Save data from broken Macbook Pro HDD

I have a broken Macbook Pro HDD with two partitions on it: OS X and Bootcamp. I need to take some files from both partitions: the HDD is now mounted to another PC via. SATA adapter Windows sees the ...
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1answer
4k views

Fixing a broken hard drive's partition map

I have a drive that is corrupted. Disk utility could not repair the disk, so I attempted to follow some tutorials and repair the partitions using pdisk and testdisk, but things have gone south. Now ...
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1answer
169 views

Fast external startup-disk for Macbook Air: SSD1 or Thunderbolt?

I bought a MacBook Air 13.3″ i7 8 GB RAM 128 GB SSD (early 2014) some months ago and found out that the 128 GB are definitely not enough! To somehow rectify my problem I though of buying a fast ...
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257 views

How can i delete a partition in Terminal when I can't simply combine because 'The given partitions are not on the same whole disk'?

Before I partitioned my HD, the only one I had was "Macintosh HD". The partition created one called "Macintosh HD2" I used terminal to erase "Macintosh HD2" somehow, but it returned as "Untitled." ...
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1answer
249 views

Maximum size drive for Mac OS X

4 TB = 1.8 TB ? What is the maximum size drive that can be used with various versions of Mac OS X? On a white Intel MacBook running Mac OS X 10.6.x, the Disk Utility app recognizes a new Seagate 4 ...