A storage device attached to a computer, but not enclosed within the computer's casing

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2answers
567 views

Drive does not stay mounted

I created an encrypted RAID 0 disk following Why doesn't FileVault work on a RAID volume? on a WD My Passport Pro $ diskutil cs createLVG TimeMachineLVG disk5 Started CoreStorage operation ...
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1answer
75 views

How to exclude everything from TimeMachine backup except one folder

TimeMachine backs up all my mac and also if I have external hard drives will back them up too. My goal is to add some general exclusion list that basically stops it from backup my mac and ONLY want ...
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0answers
168 views

Fix hard disk not detected after force eject

I got an HDD on my Mid 2012 Macbook Pro 13 inch. I decided to upgrade to SSD and I want a clean install of El Capitan. After the SSD ugprade and OS installation I connect my old HDD as an external ...
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0answers
642 views

How can I eject my external Time Machine hard disk attached to a MacBook Pro?

I used the external hard disk with Time Machine for the first time. After that when I tried to eject the disk, I got a message saying that it can't be ejected because it is being used by some ...
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0answers
37 views

Install Windows to iMac internal HDD

I have installed OS X on my external disk from my Macbook Pro. And recently I have installed Windows 7 on my client's iMac. But somehow, after seeing that I can access OS X from external drive. He ...
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0answers
34 views

Segmentation fault spinning up external HDD

Many times, when I compile a self-written program (C/C++) that segfaults for whatever reason, my external USB harddisk (used for Time Machine backups) spins up immediately, and I have to wait (like 1–...
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2answers
1k views

Yosemite cannot detect SD card

I know their is a flood of these questions but I have a late 2013 macbook pro with yosemite 10.10.5 installed on it. My problem is it won't read some of my SD cards, i've run disk util with the pny ...
2
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3answers
233 views

Internal vs. External Storage for a new Macbook

I want to get a new MacBook Pro, and am confused by the storage options. The Apple website offers 2 different options for storage: Preinstalled internal flash storage (256, 512, or 1 TB) Thunderbolt ...
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2answers
156 views

How much overhead (%) space requires migrating a iPhoto library to a Photo library?

After migrating an iPhoto Library to a Photos App Library, they see actually share space by using hardlinks. So even the Finder says each folder use some amount of space, they are actually sharing it. ...
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2answers
56 views

I need administrator password for file management on external hard drive

So I have an external hard drive, my passport, that used to be a Time Machine, but now I use for basic file storage. Whenever I try to add a folder, or manage files, it asks for an administrator ...
2
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0answers
26 views

What HDD to use as an *external* internal drive instead of optical drive in a MacBook Pro early 2011?

I was wondering if there are any recommendations on which HDD (Brand, Model) is best to be used in a MacBook Pro early 2011 13" (running El Capitan). I'm planning on exchanging my optical drive for an ...
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0answers
224 views

Hard Drive: I can see it in /Volumes, but it does not show up in Finder

I'm connecting my external Hard Drive on my Mac. It's a NTFS drive. It used to show up normally on Finder's sidebar and Desktop as well, but it doesn't anymore. But it does show up in /Volumes folder....
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1answer
76 views

Run Windows 10 on Mac from custom boot drive?

My Mac has specs for Fallout 4, but it won't run with wine like the others. I don't want Windows directly installed on my Mac because it corrupted my hard drive last time, instead I want to install it ...
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1answer
20 views

Securing USB Drive in Place on iMac

The internal drive of my iMac went bust recently, the iMac is not under warranty anymore so I do not plan to fix it anytime soon. At the moment I am using an external drive and I am managing. The only ...
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0answers
32 views

Macbook Air reboots repeatedly

It's a Macbook Air with OS X El Capitan (10.11.1), an early 2014 model. I got it exactly 14 mouths ago without any issues until now. This morning I just opened the laptop and after a very short time,...
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0answers
66 views

External disc partitioning gone wrong

I would appreciate any help as this situation is beyond my skills. I was trying to follow an internet instruction for putting an OS X Installation on my WD external drive using my MacBook, to ...
0
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0answers
128 views

After 10.11.1 upgrade USB hub on Dell monitor won't mount drives

I use a Dell 2715Q 4k screen with a USB3 hub. With 10.11.0, I was able to mount my USB drives for time machine. After the update to 10.11.1, the Macbook does not see the USB drives. I can connect ...
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0answers
28 views

Restore RAID Mirror?

I had a 3TB mirror using Apple software RAID on Mavericks—the two disks are in a USB3 JBOD and the USB3 card in my Mac Pro only works with Mavericks or older. Last night I demoted one of the disks so ...
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0answers
102 views

Western Digital Firmware updater will not detect drive

I have two western digital for mac external hard drives. And both were disconnecting when I plug them into a USB 3.0 external four-way port, but not a USB 2.0 port. Found out this was a common problem,...
0
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1answer
45 views

Could I connect a macbook pro to an external hard drive for use with time machine

I want to know if connecting a macbook pro to an external hard drive for use with time machine when I am not using it, at night, will work. If I then disconnect it in the morning (regardless of the ...
0
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1answer
373 views

Read files from old windows-formatted external USB hard drive

Years ago, I used an external USB hard drive with my PC (most likely Windows XP at the time). I've been trying to recover some files off of the old drive, but I no longer have a Windows machine and ...
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4answers
20k views

Can't write on external HDD after upgrading to OS X El Capitan

I am using a LaCie external hard disk in my MacBookPro for 3 years. After having updated to OS X El Capitan, I am no longer able to write on the HDD and I have read-only privileges. Info shows that ...
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0answers
141 views

Unable to view files on USB hard drive connected to my AirPort Extreme

I have a external USB hard drive connected to my 5th generation AirPort Extreme. Sometimes, usually after a computer restart, I'm able to view the files. But after that, I'm unable to view them, as ...
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1answer
1k views

How to stop decryption of external drive

I've searched on the internet for a while and asked my question on apples website discussions.apple.com as well, however I haven't found and answer yet and people aren't responding on apple's site so ...
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1answer
38 views

Fastest means to copy many drives to one drive

I have data on 16 drives that I want to consolidate to one drive. The 16 drives are external with a firewire connection. Currently I have the one drive connected as an external drive on firewire. I ...
1
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1answer
37 views

Attaching External HD to Airport - Is It Secure?

I am thinking about attaching an external HD to my Airpot (ac), which I will use to back up my computer using SuperDuper on a nightly basis. However, I am concerned about security. I know that I can ...
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2answers
429 views

Transfer iTunes library and music to external hard drive

I have an iMac running OS X Yosemite 10.10.5, with iTunes 12.3. I want to transfer my music to an external hard drive, but here is the difference: I don't want to transfer it to another computer. I ...
2
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0answers
111 views

How to Restore the Mail Symlinks to External Drive on 10.11?

My Mac Mail has been working using an external drive for the library and all messages since 2013. However I upgraded to 10.11 today and need to find a way to reference everything on the external ...
0
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2answers
5k views

MacBook Pro can't mount an exFAT external hard drive when having too many files

I need to share files between Windows and Mac, so I chose exFAT as the file system for my external hard drive. But soon I found a serious problem, when I put too many files (like 5M) in the hard ...
0
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2answers
544 views

External hard drive won't show up on finder (theres more to this)

So I plugged in my hard drive, and deleted a file on it, a .nfo file. I forgot I had a file in the trash and so when I ejected the disk, my mac prompted me an alert like "disk is in use" with a force ...
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1answer
2k views

Is it unusual for “Verify Disk” on Disk Utilities to take so long on a Time Machine drive?

I have an external 3TB FW800 drive set up to be my Time Machine drive. I noticed some unusually high drive activity, and opened up Time Machine to see if it was backing up. Nope, TM showed previous ...
2
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1answer
29 views

What will Dropbox do when I boot my external backup drive?

My MacBook just died and I brought it into the store to get it fixed. Luckily I have a recent backup (from last week) that I made with SuperDuper so I can actually plug it into my wife's Mac and boot ...
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3answers
426 views

Use external hard drive to install applications to it

I have a 120 GB SSD on my Mac and it is almost 90% full. I have another 500 GB external hard drive and I want to install some big applications to that hard drive so it does not occupy space of SSD. ...
1
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1answer
1k views

Installing Snow Leopard on external drive with newer iMac version

I have two computers running different types of OS X. One is an iMac with Mavericks (10.9.5) and the other is a Macbook Pro with Snow Leopard (10.6.x). My Macbook Pro isn't working (HDD problem), so ...
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0answers
18 views

OSX-based app for copying a NTFS drive with verification + re-read?

I'm attempting to copy a friend's NTFS drive to my internal drive, wipe the NTFS drive and then format it to FAT32. However, the NTFS drive copy keeps timing out every few minutes. Any suggestions ...
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0answers
46 views

Cannot transfer files over 80MB to hard drive from dying external hard drive

My Seagate external hard drive is dying. I have been able to (finally) mount the drive and transferred smaller file sizes (Word docs, files under 50MB), but I cannot transfer any files over 50MB - ...
2
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1answer
272 views

Photos App : Using Photos App on a library that is stored on a USB Flash Drive

I would like to store my Photos library onto an external USB Flash drive. I have found other articles explaining that it was possible to store a Photos library onto an external USB SSD or HDD and ...
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0answers
104 views

Move the beginning of HFS+ partition

What I'm trying to do is move the beginning of the partition on an external HD drive. I have an external HD drive with two HFS+ partitions on it. I want to grow the first one at expense of the second ...
2
votes
1answer
310 views

Deleting of old backups in Time machine

I have WD-My book world of 1TB and I struggled for some time to set it up correctly to use it as a disk for usage of time machine on Mac OS X Yosemite. My question is the following-what is the best ...
2
votes
1answer
174 views

External Harddrive Permissions Changed / No Access

my external harddrive permissions have suddenly changed. I am getting mount errors in Disk Utility when I try to verify the disk. When I Get Info for the drive in question, it states that I have "NO ...
0
votes
1answer
987 views

Can you transfer your applications like photoshop from your old mac to your new macbook?

Is it possible using a passport external hard drive and tome machine to transfer applications from my old macbook to my new macbook? Please advise a safe way to do this if it is possible?
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2answers
5k views

How to make a bootable external hard drive and boot up a Mac? [duplicate]

I have an iMac 27 inch, and one summer the room temperature was up to 40C, and I came home that day, and the hard drive was really slow. I then rebooted the machine and it took something like 8 ...
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0answers
100 views

External HDD Permissions Issue

I have a new 2TB Western Digital external hard drive (My Passport Ultra) that I want to use for backups. I have it formatted as Mac OS Extended, with 1 Apple Partition Map partition. When I Get Info ...
0
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2answers
509 views

Backup disk suddenly won't work

Here's the error message I get: "An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk." When I try to follow that ...
1
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2answers
1k views

WD External Drive Automatically Unmounts [closed]

I am running OS X 10.10 on a Mac Pro and I am connecting a 2TB My Book VelociRaptor Duo to it via Thunderbolt. If I leave the drive formatted in RAID everything works just fine. I need it formatted ...
1
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1answer
29 views

Force Closing Finder, Deleting Files, Recovering Said Files?

Okay. So long story short, I was working in Adobe Premiere yesterday and saved a video to my external hard drive and it ended up being over 1GB. I began to drag it to another folder and Finder crashes....
0
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2answers
386 views

Import photos from external disk into iCloud Photo Library via MacBook Air with not enough HD space

I have 60 GB of photos on an external hard disk. I also have a MacBook Air with an empty iPhoto app. The MacBook has 15 gigs left of HD space. Can I import these photos directly into the iCloud Photo ...
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0answers
57 views

Problem ejecting external disks

I use a lot of external disks and often I use spotlight to locate files on these disks. Almost always, whenever I do that I am initially unable to eject such a disk. When that happens I issue /usr/...
1
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1answer
420 views

Backup/sync Mac photo to external hard drive

It's already making me crazy - as a newbie with Mac. I have problem with backup/sync of my pictures. I would like to backup pictures from Photo library (Photo app) to external HDD but more like sync. ...
0
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0answers
166 views

Why is my external harddrive causing a kernel panic?

I've got a external harddrive that causes a kernel panic about a minute after connecting it to my MacBook. I can't work with it because it kernel panics before I can do anything. Is this a hardware ...