Questions tagged [external-disk]

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

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Should I install High Sierra in external SSD in iMac 2017 model for good performance or I can install latest version as well?

I have an iMac 2017 version with HDD and no fusion drive. HDD has slowed down so I am planning to use an external SSD. In my earlier question a generous user told me that in my model of iMac High ...
manish's user avatar
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Can too many devices on one USB-C port damage the port

First of all, I know what I had was not a good setup so I changed it. I had two external USB 3.0 2.5" HDDs permanently connected to an passive USB HUB for a long time. Neither the HUB nor the ...
gernophil's user avatar
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2018 Mac Mini Can View Some But Not All Files On External Hard Drive [duplicate]

I just bought my first Mac which is a used 2018 Mac Mini with a Core i7 running Ventura 13.5.2. I plugged in an external hard drive which is formatted in NTFS; very strangely it is able to view some ...
ricky's user avatar
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Disk Utility fails to erase new SSDs on iMac 2012, but succeeds on MacBook 2009 (both 13.5.2)

The initialisation of my two new SSDs failed. I tried this on two systems, both with OCLP, macOS 13.5.2 MacBook late 2009 6,2 iMac 27" 2012 iMac 13,2, Time Machine switched off. On the Macbook ...
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df reports strange inode info

On my external hard disk I did a df /Volumes/HD_INTENSO and got Filesystem 512-blocks Used Available Capacity iused ifree %iused Mounted on /dev/disk3s1 1953038208 425524480 1527513728 22%...
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How can I get Time Machine to back up the Photos library that lives on my external drive?

(I see that this has somewhat been brought up in other unresolved questions, but I've gathered information that I think justifies it as a new question.) As with a lot of people, my on-board Mac SSD ...
bjb's user avatar
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USB Flash drive not mounting (shows up in diskutil)

My 16 GB USB flash drive works perfectly on Windows and Ubuntu OS. On plugging into my Macbook Pro, I don't see it fully mounted. On running $ diskutil list I see the following output /dev/disk5 (...
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Why do external Time Machine backups appear on internal drive in /Volumes/.timemachine?

I'm trying to use Time Machine to back up my Mac (Ventura 13.5) onto an external SSD ("BackupSSD"). Strangely, most of the backup folders appear to be on the internal hard drive in /Volumes/....
DanB's user avatar
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How do I replace my smaller Time Machine Drive with a New Drive on macOS Ventura (Encrypted)

How do I format my New Drive and Move the old backups from my Old Time Machine?... Now it would seem straight forward at first with a simple drag and drop from old to new drive, but my old drive is ...
TheArchitecta's user avatar
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External HDD disconnects (new cable)

I use an external HDD to keep original raw photos. When I’m processing a large queue of photos, the HDD routinely disconnects. It may work for up to 20 minutes, then the volume is gone (in fact, ...
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Python script unable to access external drive under cron

My desired cron job consists of a bash script that does the following: Create a new Python environment (with a new python executable) Use that Python executable to run a Python script, which accesses ...
Michael Jan's user avatar
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On Ventura do I still open a .itl file after Option-clicking on the Music app?

After a few steps: Connect external drive to (old) macOS running Big Sur. Format drive (APFS). Still on macOS running Big Sur: cp -pr ~/Music /Volumes/MyDisk/ Connect external drive to (new) macOS ...
Sam7919's user avatar
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There is an extra "volume" in /Volumes with a similar name to an external hdd, that persists even when HDD is disconnected

Here is the output of terminal with external drive connected: eric@Mac f0 % cd /Volumes eric@Mac /Volumes % ls Backup Macintosh HD Heiffer Heiffer 1 eric@Mac /Volumes % ls -al ...
Eric R's user avatar
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Disk utility needs TLC to show drives?

It seems that in my macOS 13.4.1 (22F82), Disk Utility 22.6 (DU) cannot find an external drive until an OS reboot.  Maybe I'm missing something. A: 30GB Hitachi, 2.5", IDE B: 30GB Toshiba, 2.5&...
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The attached disk cannot be read from this computer. No treatment/recovery. Is there a way to fix an external hard drive without data loss?

Currently I'm using 1TB of SanDisk Proportable SSD. Actually, this SSD had a lot of problems. At first, it was used as exFAT, but an unrecognized situation occurred on the Mac, so it was recovered ...
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external HDD raid box - works for admin user, does not work for non-admin user

Total apple/macOS noob here, please be patient. I have a colleague with a macBook Pro running the latest macOS. For this user I have bought an external HDD box housing two HDDs which run in a raid 1 ...
Dohn Joe's user avatar
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Best way to import user profile on Mac from external HDD after data recovery on Windows?

For an iMac that had a crashed fusion drive due to damages in fusion data structures, I had to perform a data recovery on Windows. From the data recovery software, the user profile (let's call it &...
OuzoPower's user avatar
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Incorrectly ejecting archival drive: how worried should I be?

I have a small WD Passport 2 TB HDD on which I’m backing up important and irreplaceable files. It’s not the only backup but as one of three it’s important. It has about 1 TB of data in it. I closed ...
Cerulean's user avatar
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Cannot Access my Files on External APFS SSD in "Other Volumes"

On my external SSD, which is formatted as APFS (Case-sensitive), there are a lot of important personal files (around 219 GB). When I plug the drive into my MacBook Pro (M1 Pro, 2021) and open it in ...
vaely's user avatar
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How can I check what's wrong with USB stick?

I plugged a USB stick into my MacBook 5 minutes ago, put 4 files on it. After putting the files on it, I ejected the stick inside of Finder, waited for that to complete successfully, then took it out ...
theonlygusti's user avatar
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How to discover/choose RAID "Chunk Size"

question: when using Disk Utility to create a RAID 0 of two external HHD's, it asks to choose a Chunk size. the options are: 16K, 32K, 64K, 128K, or 256K. i would like to discover what another two ...
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What is currently a good way to format and encrypt an external drive so that it's usable on both Mac and Linux?

I've looked at the threads on this, noting that there doesn't appear to be any new discussion since 2019. I would like to be able to encrypt an external drive, but still have it readable across ...
hbquikcomjamesl's user avatar
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How to increase transfer speed from problematic external hard disk?

I have a Western Digital HDD 2 TB external hard disk. I had not used it for a while. It seems the drive has been corrupted and turned a bit raw. I believe this to be the case because the hard drive is ...
MALLU's user avatar
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Disc Not Ejected Properly… over and over

Since I neither eject nor turn off any external drives overnight, I find it odd that most mornings I get a stack of these notifications. I have 4 external LaCie drives permanently running. Is this ...
Erik Thorsen's user avatar
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External USB hard drive unmounts itself after an hour or so left idle

This is in connection with the other thread I started today. I have two external USB drives plugged into a Mac Mini (late 2014), running Yosemite. One of them is an SSD (SanDisk), and the other is a ...
hbquikcomjamesl's user avatar
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Is there an easy way to automatically schedule a move of files matching a certain pattern from a user directory to a USB drive?

I'm looking to automate a backup process that involves transporting backup files (with names in the form "*.savf") first onto a Mac Mini (running Yosemite), and then, once they're on the ...
hbquikcomjamesl's user avatar
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Most important tips to protect an external drive on Mac?

Without taking information security tips in general, such as backups, what are some important tips and precautions to protect an external drive when using a Mac?
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Copy files instead of move for external SSD - how to restore default behavior

I have an external SSD that MOVES files instead of copying when I drag them off the disk. Usually, I would expect to hold command for a move. How can I restore the default behavior of copying instead ...
John's user avatar
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External harddrive enclosure not recognized by MacOS [duplicate]

I have an external hard drive enclosure, which contains two 3.5'' HDDs in a Raid 1. Windows and Ubuntu are playing nice with it, however, my MacBook (13.2.1) does not recognize it. It isn't even ...
Dohn Joe's user avatar
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1 answer
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Why can I not login after updating to macOS 13.3?

After updating to macOS 13.3, I cannot login. My username/password seems to be accepted, but then I get a blank screen (with wallpaper) with a circular spinner. My home directory is on an external ...
JLG's user avatar
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External drive twice as big as internal hard drive but cannot backup due to insufficient space

For now more than 2 weeks, I cannot backup my internal hard drive with Time Machine. I have backed up to 2 external hard drive (external hard drive number 1 and 2) that worked fine so far, but the ...
ecjb's user avatar
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How to prevent macOS from popping up "disk not readable" for my external drive without making any change to the disk? [duplicate]

Similar question: How to get rid of "The disk you inserted was not readable" and auto ignore it? (without installing apps). However, in their case they were able to create an additional ...
charlesz's user avatar
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Installed Mac OS on external drive but OS updates install onto the internal drive

I want to install the latest Mac OS on an external NVME SSD. My old fusion drive is running slow. However, in the past whenever I've done this, ive found that whenever there was an OS update my Mac ...
jungles's user avatar
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2 answers
299 views

Finder is blocking when trying to eject external disk

I wrote a simple AppleScript to eject external disk (simply by "tell"ing Finder to do "eject") and it works as expected in simple cases. However, when some Finder window is opened ...
Cocktail's user avatar
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A few folders went missing after “Disk Not Ejected Properly” when my Mac went to sleep

I have an external hard disk in exFAT format (WD 500 GB WDBPCK5000ABK-03) for storing important documents. Last week I plugged it to my Macbook Pro to view some documents. After viewing, I did not ...
Raven Cheuk's user avatar
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Is an APFS formatted drive underpinned by HFS+?

When I formatted my drive with APFS this is the output that Disk Utility delivered. It says right at the beginning Formatting disk7s2 as Mac OS Extended (Journaled) with name External HD. So is an ...
Alex Ixeras's user avatar
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1 vote
1 answer
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Unable to mount FAT32 drive on macOS: com.apple.DiskManagement.disenter error -119930868

I have a USB drive that I formatted on a Windows system. I want to read the data on my Mac, which is using macOS 12 Monterey. However, the drive does not mount when I plug it in. Using Disk Utility to ...
pkamb's user avatar
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2 votes
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External SSD partition map damaged, can't format (69773/found zeroed-out block/69623)

So my external SSD (1TB Samsung 970 evo plus in an Orico TB3 housing) died. I unmounted it but probably didn't wait long enough and unplugged the drive before completing the unmounting procedure. So ...
Géza Korb's user avatar
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External disk not readable in different enclosure

I have two external disks with the same size and type of hard disk inside. The LaCie hard disk is used for Time Machine backups. When I put the LaCie Time Machine disk into the Seagate enclosure, it ...
csabigabi's user avatar
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How can I get Jenkins to access to files on an external drive

My jenkins server is running on macOS Monterey, I believe this is important because my older server on macOS Catalina has no such issue. I have some files on an external drive which I can access and ...
monoceros's user avatar
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154 views

Why can't I copy my Time Machine (Sierra) Backup to an External (Case-Sensitive) drive?

I'm currently using my old iMac while my newer Mac is off for repair, and have come across an issue I never have before. When attempting to back up a copy of my newer Mac's 'APFS (Case Sensitive)' ...
peacockharris's user avatar
1 vote
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41 views

Recovering time machine backup on failed external disk partition

I have an external disk with apfs filesystem that contains my encrypted time machine backups. The filesystem get corrupted and I'm not able to mount it any more. Disk Doctor is not able to fix the ...
Hubidubi's user avatar
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2 votes
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342 views

Is it better for a mechanical HDD to be HFS+ or APFS? [duplicate]

I recently bought a 12 TB external HDD to replace an ageing and free-space-volatilising 6 TB hard drive. This external HDD is meant for user data only, though I might shift data to and fro other ...
Alex Ixeras's user avatar
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Can I disable the "disable the disk you inserted was not readable by this computer"? [duplicate]

I am writing a script to read files from external drives (thunderbolt to U.2 SSD), which have been formatted with the ext4 file system. Every time I connect one of those, I get a dialog with the ...
j4nd3r53n's user avatar
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Corrupted file on external hard drive

I have installed a file onto my external hard drive, since then my external hard drive has dramatically slow down and files takes too long to load or open (the external drive is not useable anymore). ...
Yali Harel's user avatar
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61 views

Major issues trying to copy files from one WD SSD to another: sizes inflate drastically, weird error messages?

I have two Western Digital Elements external 1 TB SSD drives. One of them has about 900GB of files that come from an older Mac that I want to back up onto the second. I have about 850GB of free ...
Cerulean's user avatar
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255 views

Unable to boot to bootable installer for macOS Ventura

I can't boot to an external flash drive to install macOS Ventura. I created a bootable installer USB drive by following the instructions at: https://support.apple.com/en-us/HT201372 I ensured my mac ...
stantonk's user avatar
  • 633
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54 views

External HDD won't unmount

I tried to unmount my external HDD from Finder, but the drive continued to make noise which means I can't plug it off. I checked the output of diskutil list and attempted to force unmount the disk, ...
Tony Mai's user avatar
1 vote
1 answer
93 views

Erase Data from Uninitialised External HDD

My HDD has most likely been damaged after one day of usage (WD MyPassport 2TB). Is there any way if I can erase it? I am pretty sure I have something on it. Disk Utility cannot do it, 69825 error, ...
Noz_Char's user avatar
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0 answers
34 views

Is there a utility that will eject external drives? [duplicate]

Is there a utility that will eject external drives? I've tried force quitting the Finder (indexing was often the culprit), shutting down all open applications, but some process is still preventing the ...
user26732's user avatar
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