1
vote
1answer
28 views

Run OSX as normal off external HD?

I'm continuing to hatch a plan to keep running whilst emergency repairs are carried out on my MBP. Further to a question I posted on Monday I'd like to know if anyone could shed light on whether this ...
0
votes
1answer
11 views

Move data from 1 hard drive to the other

I have a bootable partition on an external drive with some old data that I want to move to a new external hard drive. The partition on the old drive is 500GB however theres only 320GB of data. So i ...
0
votes
0answers
39 views

External Hard Drive died – How do I recover those files from Time Machine?

My external hard drive, which I was backing up with Time Machine, finally died. I want to retrieve some of those files, but when I go into Time Machine I can't navigate to those files because Time ...
0
votes
0answers
14 views

Alignment error with external hard drive, Time Machine

While trying to backup via Time Machine, I am seeing the following errors in 'sudo dmesg' output: CODE SIGNING: cs_invalid_page(0x1000): p=8425[GoogleSoftwareUp] clearing CS_VALID USBMSC Identifier ...
0
votes
1answer
78 views

External Seagate Hard drive for Mac - Compatibility

I am looking to purchase a Seagate External Hard Drive for my MacBook Air. The products claims it works only with PC (windows), however, I have read multiple places that I can just format the drive ...
0
votes
1answer
30 views

Apple to Windows External Hard disk file system error

I have a Toshiba 1tb hdd. I bought an apple laptop few weeks ago and the hdd has been working properly. Today I wanted to move some files from my old windows pc to the mac. When I connected the hdd ...
0
votes
2answers
462 views

Time Machine cannot find external toshiba hard drive after OS X 10.9.2 update

I used my Toshiba Canvio USB 3.0 external hard drive without any problems for the past year. Today, I received a system alert: Backup failed. The backup disk "Time Machine Backups" is not ...
0
votes
0answers
24 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 ...
1
vote
1answer
337 views

How to disable Time Machine for an external hard drive

My wife has a MacBook Pro and two external hard drives; both of which currently contain a Time Machine backup of her MacBook Pro hard drive. Now she wants to "turn off" Time Machine for one of her ...
2
votes
1answer
68 views

Hard Drive Formatting Error in Terminal

I have tried formatting and partitioning this brand new hard drive and it has failed on multiple computers using multiple methods. It is a LaCie Porsche Design 4TB hard drive. Here is the commands I ...
1
vote
0answers
55 views

Raid two external hard-drives with read/write support on Windows & OS X

I have a USB 3 HDD enclosure that currently has two 1TB drives in it. I am looking at buying another external USB 3 HDD drive (not an enclosure). I am currently running the external enclosure with the ...
0
votes
1answer
101 views

Disk Utility reports “missing thread record” on my external HDD

I have an external 500 GB HDD that's about five years old. I just turned it on and it made a bunch of clicking noises and failed to spin up immediately, though it did so after a few seconds. To be ...
0
votes
0answers
34 views

Time Machine, Drive not available

My friend has a MacBook Pro. I've wanted to do some backup on an external drive (Lacie 1TB) with Time Machine. Now, since the backup is in the external HDD, I can not use the internal drive of the ...
4
votes
1answer
374 views

Can I have two Time Machine partitions on one hard disk drive?

I know that someone can use a partition on a hard disk drive for Time Machine, but is it possible to specify more than one partition on a single drive for this purpose? The scenario: My partner and ...
5
votes
1answer
551 views

External Hard disk 500 GB free but can't copy 8 GB data

I have WD external hard disk, which was working fine. Its MS-DOS formatted. I have downloaded a file in .mkv, which works fine, and isn't corrupted. Upon copying the 8 gb file, it says "The file is ...
1
vote
1answer
125 views

How do I stop my external hard drive from using all my RAM?

I'm running OSX Mavericks, and have an external 500Gb HD connected via firewire. I have 24GB's of RAM, and fairly often my RAM usage will spike to 23.95 GBs in use and literally leave me with only 50 ...
1
vote
1answer
37 views

Time Machine: Mobile incremental Backup

Imagine I do backups using Time Machine at home just like everybody else. But as I travel often and of course also work on the road I also need to have a mobile backup solution. I thought about the ...
0
votes
0answers
3k views

I want to install Windows 7 on an external drive

I've read two articles about booting Windows from external drives as opposed to a stock Bootcamp install. Here are the links: http://kevtg-compuproductive.tumblr.com/ ...
0
votes
2answers
674 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
0answers
56 views

Diagnose if corrupted volume is due to hardware problem

This morning when turning on a Mac laptop, it suddenly announced that an external backup disk (which was connected overnight) "can't be repaired". Disk Utility also says: Disk Utility can’t ...
0
votes
1answer
134 views

Difference in disk usage MS DOS vs Extended Journaled

Searches on Google and the Apple forums didn't get me any answers or couldn't clarify this for me, hence this question. I have two following external USB hard drives connected to my iMac: "Lacie1" ...
1
vote
1answer
76 views

How to get Mac App Store to stop thinking app is installed on external drive?

I ran into a problem where the Mac App Store said that a particular app (Numbers in this case) was up to date, but whenever I launched it I would get an older version. I finally did a search across ...
0
votes
0answers
98 views

External hard drive un-mounts and mounts itself

I have a Seagate external hard drive formatted to HFS+ that won't stay mounted for more than a couple of seconds however then mounts itself again only to unmount itself again and this keeps happening ...
1
vote
2answers
130 views

How to find file system of external hard drive?

I have plugged external hard drive. It does not show in Normal Mode. I can see its Type Name and Identifier thru terminal. I want to find the file system of the external hard drive. I want to format ...
1
vote
2answers
627 views

Which format for external disk for performance?

I'm using OS X Mavericks and just got a new external hard disk. I don't need to share it with a PC (so no need for FAT) but I do want it to have better I/O performance. I'm a bit confused by the ...
1
vote
1answer
611 views

Recover Deleted Files on Mac OSX [External NTFS]

I have accidentally deleted some files on my Mac OS X Mavericks. Actually, I was trying to burn an .img file to my flash drive which was located at /dev/disk1 (at the same time I had connected a NTFS ...
1
vote
1answer
38 views

On external drives

When I shop for third-party external hard drives I'm struck by how much more expensive the drives that are advertised "for Mac" are, when compared to those without such qualification. My question is: ...
2
votes
2answers
301 views

Time Machine - multiple backup destinations for a “separate weekly”

I have a client that I'm setting up Time Machine to backup his Macbook Pro. He's running OSX Mountain Lion, but soon to upgrade to Mavericks. It has been backing up using Time Machine and an ...
6
votes
1answer
2k views

Can't restore to backups after removing disk in Time Machine

I've been using a WD 2TB HD for the last two months to handle my Time Machine backups for my Macbook Air. Yesterday, I wanted to set it up to handle backups through the network. In the Time Machine ...
1
vote
1answer
124 views

Could two WD Passport Ultra 1TB drives be used in the OWC Mercury Elite Pro Dual mini enclosure as RAID 1?

I'm thinking of buying one more WD Passport Ultra 1TB (I have one already) so that in the near future I could disassemble the two Passports and install the 1TB drives into the OWC Mercury Elite Pro ...
6
votes
2answers
403 views

How can I copy data from an external HDD that is about to fail?

I have an external HDD that is about to fail. I want to copy as much as I can to a new external HDD before it completely dies. I've been able to start copying files for a few minutes before the drive ...
0
votes
0answers
258 views

Unable to create new partition with Disk Utility on external drive

I'm trying to create space on an external drive to clone my mac as a bootable volume with CCC. With Disk Utility I cannot modify it for some reason (probably because the same disk is used with Time ...
1
vote
0answers
278 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 ...
2
votes
2answers
171 views

Does it make sense to buy a compatible Mac external disk?

What is the advantage of buying a compatible Mac external disk? Using Tuxera NTFS I can have an external disk for both, the windows partition (or any windows machine) as well as for the Mac one. Does ...
4
votes
2answers
2k views

How to let MacBook Pro recognize my external hard drive as internal hard drive?

I'd like to install Windows 7 on my MacBook Pro, but as the internal hard drive cable is not working, I'm using it with an external hard drive plugged in which OS X is installed on. When I try to ...
0
votes
0answers
55 views

10.8.5: Resume Disk Utility after a standby

Is it possible to resume a partition resizing operation after the computer went in standby? I've (sadly, without a choice) used my girlfriend's MBA to resize a partition on a disk. I was on battery ...
1
vote
1answer
315 views

RAID 1 with a Mac - how to avoid formatting one of the drives

I have an iMac with an external 2TB HDD. I recently bought a second 2TB HDD in order to build a RAID 1 (mirrored) with the two drives. The problem is that Disk Utility forces me to create a new RAID ...
8
votes
1answer
237 views

Don't wake up external hard disk when saving to internal one

My problem is that I have an external hard drive connected to my Mac. Since it is only used for backup purposes, it is sleeping most of the time. However if I now want to save something (e.g. a ...
2
votes
1answer
219 views

Hard drive will not format - bad drive or enclosure?

Today, I received from Amazon a Thermaltake BlacX 5G hard drive docking station and a 2 TB Western Digital Green drive. I inserted the drive and was able to format it into a one partition drive. I ...
1
vote
1answer
152 views

OSX 10.7.5 renaming attached Firewire drive

My Mini was running out of disk space, so I attached an external Firewire drive and moved all the Home directories (a bunch of users on a home machine) to it. I'm pretty sure that was done correctly, ...
1
vote
0answers
131 views

How do I temporarily relocate my Time Machine backup files

I have a 1TB WD My Passport external hard drive that I've been using for Time Machine backups. I recently had an issue with it where I can't save to it anymore because it was corrupted. The way to fix ...
0
votes
1answer
120 views

How do I copy an NTFS partition to a writable disk image?

I have a drive from an old Windows computer. The drive is now in an enclosure, so it's accessible as if it were an external drive. It is formatted as NTFS. I would like to convert this drive (about 50 ...
1
vote
1answer
327 views

Use two external hard drive docks to retrieve data from RAID 0 disks

Some while ago, I fried the power supply inside of my WD MyBook Pro Edition II, leaving the disks intact but rendering the enclosure itself totally useless. So now I have two 500GB 3.5" SATA drives, ...
0
votes
1answer
297 views

If I temporarily remove an external HD from my Mac, then re-introduce it a few weeks later, will Time Machine back it all up again?

If I remove an external hard drive from my Mac, then re-introduce it a few weeks later, will Time Machine back it all up again as if it were a new drive, or will it just back up the changes that were ...
1
vote
0answers
380 views

RAID 1 array degraded, now not being recognized by OSX

I've got a pair of Seagate 3TB HDDs in a mirrored RAID 1 array using a Vantec NexStar MX two-drive enclosure. The setup has generally worked fine for the last four months, but lately I've noticed that ...
1
vote
2answers
279 views

OS X accessing external drive

I noticed that when I plug in an external NTFS HDD something is reading it and it doesn't stop for a long time... I checked with fs_usage and saw this: 23:26:54.189404 read F=5 ...
4
votes
2answers
3k views

Aperture: Library over multiple Hard Drives

I switched to Aperture some time ago. And right now, the moment has come that I want to save some space on my internal hard drive. What I found on the Apple website is this: I can't seem to find ...
0
votes
1answer
504 views

Why is my Mac able to write to my NTFS hard drive?

My question is one of confusion. All over the internet I have seen people looking for the ability to use a Mac to write to NTFS, or people formatting drives to FAT32 so that their Mac can share a ...
0
votes
2answers
7k views

Powerful external hard disk health checker on Mac?

Is there any powerful program in Mac to check the health status - mainly bad sectors - of an external (USB) hard disk, and to recover them?
2
votes
3answers
2k views

Is it necessary to eject an external drive before sleeping? [duplicate]

I have a question similar to a previous one about ejecting before shutting down. Is it necessary or recommended practice to eject external drives before putting a Mac to sleep, whether it be via an ...