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

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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 ...
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1answer
3k 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 ...
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2answers
2k 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 ...
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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 ...
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1answer
143 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.
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6k 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 ...
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1answer
1k 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 ...
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6k 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 ...
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2answers
704 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 ...
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10k 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). ...
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324 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. ...
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1k 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 ...
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3answers
281 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 ...
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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 ...
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2answers
423 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 ...
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3answers
729 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 ...
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101 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?
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1answer
680 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 ...
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3answers
5k 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 ...
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2answers
5k 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 ...
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1k 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: ...
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3answers
7k 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 ...
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735 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 ...
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435 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 ...
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66 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 ...
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1answer
176 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 ...
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3answers
2k 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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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 ...
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1answer
1k 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). ...
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1answer
1k 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 ...
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893 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 ...
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2answers
808 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 ...
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3k views

Synchronize USB hard drive between Mac and PC

I have a large (750GB) FAT32 formatted USB hard drive and two computers - a MacBook and a PC - and I want to keep synched and duplicate versions of my work folders (images, word documents, videos etc) ...
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364 views

Can I format new MacBook hard drive from OSX DVD?

I have to install a fresh new drive into my MacBook pro 2009. I haven't formatted yet, nor do I have a USB dock to do so from my current osx installation. If I install the new drive and boot from ...
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203 views

MacBook Pro disk failure

Just a few months ago, I bought the latest 2011 MacBook Pro. Now, a few months later, I have a problem. It seems like my notebook is rejecting my hard drive (which is an SSD). How it all began: ...
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Latest Model 13" MacBook Pro i7 - Disk slow beyond belief

It seems that all disk operations are 50x slower. Reboot time = 15 minutes. Dekstop freezes every time disk accessed. Is there anything I can do? The machine is virtually unusable. This has been ...
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3answers
3k views

Tracking down frequent (every 20 seconds) SCSI hard disk drive access in 10.7

In a Lion Server (10.7.3 and 10.7.4 tried) system with multiple drives attached to an HPT SATA controller, there is some process that keeps accessing the hard disk drives exactly every 20 seconds. As ...
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5answers
5k views

Western Digital external hard drive is constantly ejected

I have a 1TB Western Digital external hard drive that I use for Time Machine backups, and recently my iMac has started to randomly eject the hard drive, preventing backups. It tends to happen while ...
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1answer
3k views

How can I tell which volume the operating system is on?

I'll admit that I am kind of rolling multiple questions in to one here so please forgive me and try not to knock me for it. I am new to Mac but I'm trying to port one of my Java applications to OS X. ...
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1answer
1k views

Hard Drives shows up in Finder, but not Desktop [duplicate]

In the past when I have plugged in external hard-drives they would always show up on the desktop. I'm not sure if it is because of a software update or the drive itself but it's no longer showing up. ...
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3answers
6k views

Reinstalling Everything after HD Replacement

I'm about to replace my iMac's HD (250GB to 1TB). I'm planning to create an image of my disk right in m Time Capsule, and after the transition I need to clone the HD back. Unfortunately Lion has no ...
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3answers
228 views

An endless supply of 1's for securely overwriting and erasing a disk

I vaguely remember hearing about disk wiping, and that you have to flood the disk with zeros, flood it with ones, flood it with random data, and repeat this quite a few times. This is just a general ...
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FAT or exFAT or NTFS

I recently brought Western Digital's Passport Essential, and will be using with my MacBook (running Snow Leopard), MacBook Air (running Lion) and Windows 7 Desktop. I should be able to read-write data ...
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2answers
5k views

Is it true that any external hard drive made for the PC, can be used by a Mac running Lion?

It seems like Lion supports NTFS (by plugging in a USB Flash drive which is NTFS). So for hard drives such as the WD Passport or Toshiba 1TB, which are made for the PC (running Windows XP/Vista/7), ...
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Find Time Capsule HD Specs

How can I find out the specs from my Time Capsule hard drive? It doesn't appear in Disk Utility (a mounted disk). More specifically, I'd like to know the manufacturer and model, much like the System ...
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2k views

Why does RAID 1 “Mirroring not provide performance improvements”?

I have always used Software RAIDs, either Apple-provided, or via SoftRAID, etc. I am about to re-zhuzh my arrays and decided to do a little research beforehand… and On Apple's site, there is a ...
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890 views

Does the hard disk sleep setting in Energy Saver affect drives in the optical drive bay?

If a second hard drive is mounted in the optical drive bay of a MacBook Pro, will it be affected by the Energy Saver setting for "Put the hard disk(s) to sleep when possible"? If it is affected, is ...
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1answer
808 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 ...
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2answers
1k views

Renaming “A's MacBook” to “C's MacBook”

I see that my Mac is called "A's MacBook" on the network. How do I rename it (i.e., change the hostname) to "C's MacBook"? That's the question. Here are the details: Having read various suggestions ...
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1answer
135 views

sym linking iTunes Media -> Music to external thumb drive

I'm out of space on my Macbook Air and thinking about ways of removing things. One idea is to put all my music (~100GB) on a big thumb drive (y, and back it up). I pretty much always have my keychain ...