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

learn more… | top users | synonyms (3)

2
votes
1answer
311 views

Will FileVault reduce the power of my hybrid SSD+HDD?

I have a MacBook with a Momentus XT hybrid SSD+HDD drive. It have a 500GB HDD plus 4GB SSD which, as I could check, it uses as a cache for read operations. It uses some kind of black magic to ...
1
vote
3answers
20k 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 ...
2
votes
1answer
183 views

Hard drive defect? Help me recover my music!

I've an old iPod Classic with 80 GB of Storage, suddenly it stopped showing any music. I can still access the files on it (with Windows Explorer). Copying all files is possible but it stops at a ...
3
votes
1answer
1k views

Macbook Pro early 2012 SSD retire block count

I've recently bought an OCZ Vertex3 480 GB SSD (VTX3-25SAT3-480G) for a drive upgrade. This is what I did after I purchased the drive: Backed up my system with Carbon copy cloner Installed the SSD ...
4
votes
1answer
4k views

Where are notes stored in Mountain Lion

I ha a hard drive that died recently in my macbook, I've replaced the hard drive etc so no issues there. Unfortunately, it appears I wasn't backing up the notes app to iCloud, and I really need to get ...
3
votes
1answer
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 ...
0
votes
1answer
242 views

I replaced my Superdrive with a second hard drive, and now I've got spin-up/down issues

I've purchased a bracket to replace the superdrive in my 2009 Unibody MBP, the kind with the latch that pops open rather than the entirely screwed down bottom panel. Now that I've put in my second ...
3
votes
1answer
5k views

Does Time Machine need a “clean drive”, or can I use an old hard disk

I want to use Time Machine on my Mountain Lion. I have 1TB external HDD I use for storing various stuff. The thing is I selected the drive for Time Machine to work on but nowhere it is mentioned ...
1
vote
1answer
2k views

What does “DOE compliant” mean in Disk Utility?

When erasing a drive with Disk Utility, you have a couple options. An insecure wipe, a single pass of zeroes, a "DOE-compliant" 3 pass, and a DOD (Department of Defense) 7 pass. DOE doesn't stand ...
5
votes
3answers
9k views

fsck and Disk Utility won't repair Volume: invalid b-tree node size

I accidentally wrote some .iso data to a disk through dd by mistake. I cancelled the command after just 2 seconds but that was enough to wipe the first EFI partition (200MB) and a bit of the second ...
2
votes
2answers
13k 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
votes
2answers
3k views

Mountain Lion Installer detects hard drive damage

I downloaded and ran the Mountain Lion Installer today for my mid-2007 iMac. After rebooting and preparing to install, I receive an error message that the hard disk was damaged and the installer could ...
1
vote
1answer
745 views

How can I mount disks via cron in Mountain Lion?

Is there a way to mount disks in Mountain Lion that works with cron? The following command works fine from the Terminal: /usr/sbin/diskutil mount disk1s6 But when executed via my crontab, it ...
2
votes
2answers
304 views

Exact clone of HD

I managed to broke something on my iMac's internal HD. I have now done a successful restore using DiskDrill, but just in case I want to make an exact copy of the internal HD. Not just some partition, ...
1
vote
0answers
418 views

“Invalid key length” - corrupt partition after power outage?

I recently lost power overnight with my computer up and running, external hard drives plugged in, and in the morning my login screen had the "Device Removal" error as if I unplugged the disk without ...
0
votes
4answers
3k 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.
2
votes
0answers
45 views

disk copy software, imperfect disk

I didn't find this question, but if it is here let me know. I have a problem disk. I want to copy as much as possible from it before I scrap it. But there are many thousands of files, so manually ...
1
vote
2answers
4k views

How to partition an SSD that fails with error 69888 - couldn't unmount disk?

I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
0
votes
1answer
500 views

How to re-encrypt a decrypted partition that says “The Core Storage-targetvolume is already encrypted”?

I encrypted a Lion partition called "Storage" and it worked perfectly. I needed to decrypt it momentarily because I had some issues, but now I want to encrypt the same volume again and it says "The ...
1
vote
1answer
2k views

HD accidentally reformatted to MBR, how to get back to GUID?

So in trying to create an MBR partition of my hard drive which I could then use to boot a solaris-derivative OS using rEFIt, I messed up. Rather than a hard drive with a primary GUID partition map ...
0
votes
2answers
1k views

How to recover deleted files from OS 10.5.8?

I'm not very experienced with Macs, so please pardon my mistakes. I'm assisting a coworker with a client of ours who recently let go of one of their employees, and in the resulting meeting the person ...
1
vote
2answers
3k views

Are there any wireless hard drives work well with Lion or newer Macs?

Are there any wireless hard drives to use with a mac? I need to copy paste files from and to this hard drive, when the disk on my mac is full. Do I need to look for a specific Apple drive or will any ...
1
vote
1answer
111 views

difference between disk size in console vs disk utility

Console results df -h disk utility results What explains the large difference here in capacity as well as used memory? And which is more reliable.
2
votes
3answers
4k views

How to fix “512 bytes per sector” to “4096 bytes per sector” for an “Advanced Format” 4K sector USB hard drive?

Mac OS X 10.7.4 has a Sharkoon Quickdeck Pro USB enclosure attached. That USB enclosure contains a 4TB Advanced Format hard drive which has 4096 bytes (4K) sector size. The drive is GPT/GUID ...
1
vote
1answer
738 views

How to auto mount internal SATA hard disk drives after power failure/interruption?

In a Mac OS X 10.7.5 (Lion) system with two internal SATA drives, the internal drives are connected via a Highpoint Rocketraid controller and are configured without any RAID thus operating in legacy ...
5
votes
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 ...
1
vote
2answers
574 views

Is there anything like NVELO Dataplex (hybrid SSD/HDD software) for OS X?

I'm interested in upgrading my old MacBook to using an SSD and moving the data drive to where the DVD drive is using an optibay. Often SSDs come with a licence for NVELO Dataplex software (which is ...
4
votes
1answer
5k views

Why is exFAT so slow on Mac?

I tried exFAT in order to use my external hdd on both mac and windows but I found it's so much slower than HFS+. The speed is noticeably different when I tried to fast forward movies (over 4gb). ...
3
votes
2answers
269 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
votes
2answers
714 views

Why is Outlook 2011 constantly writing to my hard disk?

I recently installed a hard disk write monitoring program (MenuMeters), and for some reason it was reporting that my drive is constantly being written to. By closing programs one at a time, I've ...
0
votes
3answers
249 views

Which type of storage between HDD and SSD should I use in MacBook Pro for app development job?

I'm deciding to buy my first MacBook Pro for developing iOS application. I never use any Apple desktop or laptop before, and also never develop any application. I think if I want faster result when I ...
1
vote
1answer
3k views

Unable to unmount drive!

Somehow my harddrive seems to fail, I am not able to startup anymore. When I started in verbose mode, I noticed that the harddrive return I/O Errors and the B-Node-Tree seems to be corrupted. I was ...
1
vote
2answers
324 views

Is “The disk copy of 'filename.psd' was changed since…” dialog a sign of harddrive issues?

I saw this message and I'm not sure if it is a sign of harddrive issues (corruption, etc) or anything I should be concerned about. It popped up in Photoshop when saving. Might also be worth noting ...
1
vote
3answers
612 views

Any partition software just to partition unused space?

Currently I have one portable external hard drive which I use for Windows. It's 1TB and over 300GB is used space. I would like to partition it so I can access the unused space from my Mac. Can you all ...
0
votes
0answers
99 views

Transfer data to rMBP from external hard drive?

I got the new rMBP and tried importing my stuff to it via an external HD. Seems like it didn't work. And Migration Assistant didn't either. Has anyone done this successfully?
2
votes
1answer
544 views

Can I manually put an external hard disk to sleep?

Is it possible to manually put an external hard disk to sleep? Right now, I've already got "Put the hard disks to sleep when possible" checkmarked in the Energy Saver preference pane, and so they ...
2
votes
3answers
4k views

Best file system for an external hard drive sharing between OS X and Windows

I would like to buy an external hard drive that I'll use on Mac OS X and on Windows, but I don't know the best file system for it (reading and writing on the both system). I know I can used FAT32 ...
0
votes
2answers
3k views

SSD and Superdrive on Nvidia MCP79 SATA controller

Right now I have a Hitachi 320GB 5400rpm and a MATSHITADVD-R UJ-868 superdrive connected to the Nvidia MCP79 SATA controller in my MacBook Pro 5,3. The link speed of the hard disk drive is negotiated ...
0
votes
1answer
855 views

Nvidia MCP79 SATA controller caps link speed

Why is my SATA controller capping the link speed? This is what it says in my System Profiler under the Serial-ATA page: Vendor: NVidia Product: MCP79 AHCI Link Speed: ...
2
votes
2answers
5k views

Clone the Windows partition with Carbon Copy Cloner?

I have bought a new Hard Drive and I want to switch from my old disk to my new one. Time machine will do the job for my Mac partition, but not the Windows partition I guess. So I'm looking for way to ...
0
votes
1answer
576 views

Sandboxing prl_disp_service to prevent disk waking

So there is prl_disp_service, a Parallels 7 background service that periodically wakes the internal hard drive in my Macbook Pro although it`s unmounted most of the time since I boot from an SSD I ...
0
votes
1answer
331 views

Macbook Pro HD/SSD Dock mount drives as read/write

Ok, so just bought myself a dock so I can wipe some drives and use others as storage. Most of these drives originated from windows Machines and thus are formatted NTFS and not FAT/FAT32 Currently I ...
0
votes
2answers
58 views

Moving Drives Between Macs

I'm considering buying a new MacBook Pro after today's refresh, and I am wondering if OS X handles simply pulling a drive out of one MacBook Pro and putting it in another. I know that in the Windows ...
0
votes
1answer
161 views

Cannot read internal hard drive

My MacBook Pro (Mac OS X Snow Leopard) would not start up and the apple service guy suggest me to take the internal hard drive and back up the data to another computer using an external hard drive ...
9
votes
3answers
726 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 ...
3
votes
1answer
2k views

prevent second hard-drive from spinning up after standby

I have a MacBook Pro with two harddrives, an SSD in the main slot and a larger, normal drive in place of the superdrive. Because of power consumption and noise I managed to get my Mac to not ...
8
votes
1answer
665 views

How can I tell whether a drive is asleep?

Is there an application or command-line utility for Mac OS X to query a hard-disk to see if it is 'asleep' or 'awake' right now? (i.e. as controlled by Energy Saver / pmset disk sleeping preferences). ...
2
votes
1answer
878 views

Installing hybrid drive in mid-2010 17-inch MacBook Pro

I'm looking to expand my internal 500 GB 7200 RPM HDD that came with my 17" MacBook Pro (mid-2010) running OS X Lion. I'm interested to hear from other MacBook Pro owners who've upgraded their HDD ...
0
votes
0answers
637 views

how do I create an ISO/CDR file from a hard disk?

Presently I am attempting to back up my whole computer's primary hard drive to an ISO file. When I attempt to do this using Disk Utility, I perform the following steps: Open disk utility and choose ...
2
votes
2answers
599 views

Does a Macbook Pro have 1 or 2 Hard Disk Controllers?

If SATA channel 1 (used by the hard drive) is damaged, could it be that SATA channel 2 (used by the SuperDrive) is fine? I would like to know if I can use a hard drive on the SuperDrive channel even ...