1
vote
1answer
28 views

Why is my USB drive suddenly read-only and how can I make it read-write again?

I have a 1 TB USB drive. I've been using it for months. My main iTunes library is on it. As of yesterday, for no apparent reason, it has become read only. I can't open iTunes. I also tried ...
0
votes
0answers
71 views

Install Windows 8.1 and OS X 10.9 on external SSD USB3.0 (iMac Late 2012)

Good morning, Currently I have my iMac running OS X 10.9 on an external USB3.0 SSD drive, and it has been running flawlessly. My question is: - Is it possible to dual-boot Windows 8.1 in the SAME ...
0
votes
0answers
47 views

An external hard drive isn't recognized

Once I ejected an external hard drive incorrectly for some reason and from that time on it doesn't get recognized by my Mac so I can't see it plugged in at all (there's no sign in Finder that it's ...
1
vote
2answers
115 views

Western Digital Passport Drive Shows up on Old 2009 MacBook Pro, but not my new one

I just bought a new MacBook Pro to replace my old 2009 model. For some strange reason, the external Western Digital Passport Drive I've used for Time Machine on my old Mac doesn't seem to work on the ...
1
vote
1answer
203 views

using external hdd slows down my mac

When I use an external drive via usb, my computer really slows down giving me no choice except reboot. I watched memory usage with activity monitor. Free memory decreases by time and inactive memory ...
0
votes
0answers
56 views

Macbook often won't shutdown if external not manually unmounted first

If I don't have my external hard drive plugged in, or if I eject it first, the computer shuts down very fast thanks to my SSD. But if I don't eject it first, it either takes much longer to shut down ...
0
votes
1answer
65 views

Reconnect an external HDD after proper ejection [duplicate]

After I "properly eject" an external HDD or USB stick, can I "reconnect" it without physically unplugging it?
0
votes
2answers
1k views

External drive HD WD 3T My Passport with Mavericks suddenly unmounts

I've a problem with my external hard drive, a Western Digital 3TB, with my Mac running OS X 10.9, Mavericks. When my hard drive is linked to my MacBook Air and, I work with it, the drive suddenly ...
0
votes
2answers
50 views

USB3 HDD on an USB2 port vs thunderbolt

I need to buy a new HDD (>2To so no SSD solution, unless you know a very attractive offer) and I was wondering about performance knowing this : MBP 2011 (2 usb 2.0 - 1 Thunderbolt); 7k2 HDD. What ...
1
vote
0answers
313 views

My Lacie 'Rugged' external hard-drive no longer mounts

My Lacie 'rugged' 1TB external hard-drive has stopped working. I have always been sceptical about the USB connector cable, and more specifically where it joins the hard-drive. It just seems poorly ...
0
votes
0answers
135 views

How do I diagnose non-operational external USB3 hard disk drives?

I have a certain combination of portable external USB 3 drives and cables that do not recognize my drive on my Mac Mini 6,2 running OSX 10.8.4. Changing the ports have not helped. In short - All my ...
4
votes
1answer
2k views

Speed up transfer of 145 GB to USB 2.0 drive

I have about a day to move my 145 GB Aperture file from my 2009 iMac to a USB 3.0 drive. However, my iMac doesn't have USB 3.0 yet. According to Finder, the transfer is expected to take 2 days. So I ...
0
votes
0answers
285 views

USB Thumb Drive on hub will not mount automatically

I have a 16gb SanDisk Cruzer Fit USB thumb drive. It's plugged into a powered hub, along with an external HDD - at the end of the day, I unmount (eject) the drives, and disconnect the MacBook from the ...
1
vote
1answer
3k views

Can a VirtualBox Windows 7 virtual machine be installed on a USB hard disk?

My MacBook Air has only a 64G hard drive which is so small that I don't want to install virtual machines on it. I'm planning to buy a 1TB portable USB hard disk to run virtual machines. Has anyone ...
0
votes
1answer
3k views

WD Passport External USB Drive - Really slow on Macbook

I just got a Western Digital 2 TB "My Passport" USB drive and connected it to my macbook pro (it says it supports USB 3). But when I tried to copy my photo library it said it would take 40 hours? ...
2
votes
1answer
4k views

USB flash drive not shown

My macbook suddenly stopped showing USB flash drives in Finder when I plug them in. I tried 3 different USB sticks - none work (worked just fine yesterday). USB-ports work fine - I tested all three ...
0
votes
2answers
1k views

How to fix mounting problem with external drive?

I have a USB external hard drive with AC adapter that works fine with an Ubuntu machine. But when I plug it into my MacBook Air it lists one partition on the finder, and does not mount the other. ...
0
votes
1answer
3k views

Error copying large file to usb 16GB Thumbdrive

Trying to copy a file (Win7_IE8.vhd) to a USB drive. The file is 9.07GB in size according to my Mac file info. The USB drive is 16GB. I bought it new 10 minutes ago. This is its first use. I get: ...
1
vote
2answers
6k views

MacBook Air and external USB 3.0 hard drive

I have EEB-40S-U3 with 500GB Seagate Momentus inside and 2012 MacBook Air 13". When I connect HDD case to laptop nothing happens: I don't hear any sound from HDD itself, volumes does not appear in ...
1
vote
2answers
1k views

USB 2.0 hard disk does not show up

I have a 15-inch Macbook Pro with Retina Display that doesn't work with my USB 2 hard disk. It doesn't mount, doesn't show up in Disk Utility, and doesn't even show up in System Information in the ...
0
votes
1answer
1k views

SSD in external usb 3.0 case not recognized

Mac mini 2009 Intel SSD 330 60 Gb IcyBox IB-AC603a USB 3.0 I can't see the SSD in Desktop nor in Disk Utility. I don't know what to do as it is said to be USB 2.0 friendly in case's documentation.
1
vote
1answer
4k views

Can I make my external HD sleep automatically?

I have an external WD USB hard disk attached to my MBP which I use for backups etc. I've noticed that even when it's completely inactive, but the drive is mounted, that the disk is spinning constantly ...
1
vote
1answer
197 views

Will a USB 2.0 5400RPM External HDD for Time Machine slow down my SSD?

Will a USB 2.0 5400RPM External HDD for Time Machine slow down my SSD? I am new to Mac and I don't know how often Time Machine works with the drive.
2
votes
1answer
4k views

How to access USB External Drive on iMac from Macbook Pro?

I have an iMac with an external USB 1TB harddrive, running Mountain Lion. Under File Sharing I have added this external drive to my list of "Shared Folders". I have a MacBook Pro also running ...
4
votes
1answer
5k views

Can I get S.M.A.R.T. support on external hard drives?

Disk Utility reports the S.M.A.R.T. Status as not verified for external disks, and by default Mac OS X only seems able to access S.M.A.R.T. information on internal hard drives. Is there a way to get ...
3
votes
3answers
3k views

My external disk made a clicking noise. What should I do?

I have a USB2+Firewire external disk that made a clicking noise, and Mac OS X immediately unmounted it and put up a dialog box saying that a peripheral is misbehaving. The disk made a clicking noise ...
3
votes
2answers
2k views

What's the best way to back up an external hard drive onto a Macbook?

A friend of mine has a Macbook Pro, and an older 80GB external hard drive. She is copying files from the external hard drive (which contains all her work) to the Macbook, but slowly because she's ...
4
votes
2answers
646 views

Constant external disk activity when MacBook is in sleep state

I am using an external 2.5" hard drive (the original MacBook HD, which has been replaced by an SSD) in an Icy Box USB3 enclosure on my MacBook (running OSX Lion). When the MacBook goes to sleep, the ...
2
votes
1answer
535 views

USB 3 via ExpressCard/34 on a thunderbolt with parallels desktop

Can I use an extenal windows formatted USB3 harddisk on my mac connected via thunderbolt on the future Sonnet Echo-Expresscard/34-Thunderbolt-Adapter? It's clear I can use UBS3 HDs for Mac, but how ...
1
vote
1answer
2k views

Pen drive does not show on mac on attaching but show error on removal?

My problem is that when I attach my pen drive to any of the ports on my Mac, it won't show up on my Mac, but when I remove the pen drive, it shows the error, "The disk was not ejected properly. If ...
1
vote
1answer
2k views

Make external optical drive appear identical to internal SuperDrive?

Is there a way to make a external optical drive appear to applications as though it were an internal SuperDrive? I am using the optical drive bay in my MacBook Pro for a secondary hard drive, and I ...
1
vote
1answer
642 views

Why do external hard drives run so hot while mounted and idle on a Macbook Pro?

When my external drives are mounted and idle on a Macbook Pro, they run hot. Why? I do not have the same experience with NTFS volumes on my Windows box, where's the difference in idle disk usage? ...
2
votes
2answers
202 views

Did my girlfriend delete her USB disk?

My girlfriend says she dragged the USB disk from the sidebar in finder into trash and I have since emptied the trash. Is this plausible? How do I show/display a USB drive using the command line or ...
2
votes
3answers
3k views

Enabling Time Machine for a USB HDD with NTFS

When I've plugged in my USB HDD (WD Passort Elite) for the first time, the system had asked me whether I want to use this HDD as time machine drive. I've chosen smth like 'decide later' and continued ...
7
votes
0answers
536 views

Disable File System Cache for USB Devices?

Possible Duplicate: Disable “the disk was not ejected properly” message When I have a USB Device like a SD Card, USB Drive or external hard drive, I always need to unmount it, ...
24
votes
2answers
16k views

How do I disable this message: “the disk was not ejected properly”?

Is there any way to disable the "the disk was not ejected properly" message? I use a KVM and need to switch between two systems and have a memory stick that is in the KVM. The problem is that it's ...
2
votes
3answers
3k views

Automatically launch a program or action when an external drive or disk is connected

I have an external drive. Is it possible to launch a program or perform an action when I connect it or plug it in?