Unpartition Extreme Thunderbolt 2TB drive for photo backups

How do I unpartition an Extreme Thunderbolt 2TB hard drive so I can use all of it to back up photos? Currently 1 TB is allocated to old Time Machine backups and 1TB for photos. My photos are set to back up to iCloud and I use Time Machine. But every few months I back up my photos to an external hard drive from iCloud. I have another hard drive that I am currently using for my Time Machine backups, so this Extreme is available for photos/videos only.


iMac 24″, macOS 26.2

Posted on Feb 13, 2026 11:52 AM

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Question marked as Top-ranking reply

Posted on Feb 13, 2026 9:31 PM

Ok, then if your goal is to use this drive just for storing files, then you will want to use the macOS Disk Utility to both completely erase the drive, and then, repartition it with a single APFS Partition/Container.


The key is to erase the device itself, not an existing volume or container. That ensures you remove all prior partition maps, containers, hidden volumes, and leftovers. That is, you will be erasing both existing partitions currently on this drive.


Here’s the straightforward method:

  1. Open Disk Utility
  2. Show the physical devices (important) By default macOS hides the actual disks. In the menu bar: View → Show All Devices. You should now see a hierarchy like: External Drive (physical device), Container diskX, Container disk Y, & Volume(s)
  3. Select the top-level physical disk. Click the entry that represents: The manufacturer name or size (e.g., “Samsung T7 Media”, “WD Elements Media”). NOT the APFS container, nor any volume underneath.
  4. Click Erase, and then, use these settings: Name: anything you want (can rename later), Format: APFS, & Scheme: GUID Partition Map. Then click Erase.


The Result?


This will:

  • Completely wipe the drive's existing partitions (the current photo/video storage partition & the Time Machine partition)
  • Create one partition (the total size of the drive: ~2TB)
  • Create one APFS container inside that partition.
  • Create one APFS volume inside it


Ref: Erase and reformat a storage device in Disk Utility on Mac - Apple Support

6 replies
Question marked as Top-ranking reply

Feb 13, 2026 9:31 PM in response to cincinnatimissmac

Ok, then if your goal is to use this drive just for storing files, then you will want to use the macOS Disk Utility to both completely erase the drive, and then, repartition it with a single APFS Partition/Container.


The key is to erase the device itself, not an existing volume or container. That ensures you remove all prior partition maps, containers, hidden volumes, and leftovers. That is, you will be erasing both existing partitions currently on this drive.


Here’s the straightforward method:

  1. Open Disk Utility
  2. Show the physical devices (important) By default macOS hides the actual disks. In the menu bar: View → Show All Devices. You should now see a hierarchy like: External Drive (physical device), Container diskX, Container disk Y, & Volume(s)
  3. Select the top-level physical disk. Click the entry that represents: The manufacturer name or size (e.g., “Samsung T7 Media”, “WD Elements Media”). NOT the APFS container, nor any volume underneath.
  4. Click Erase, and then, use these settings: Name: anything you want (can rename later), Format: APFS, & Scheme: GUID Partition Map. Then click Erase.


The Result?


This will:

  • Completely wipe the drive's existing partitions (the current photo/video storage partition & the Time Machine partition)
  • Create one partition (the total size of the drive: ~2TB)
  • Create one APFS container inside that partition.
  • Create one APFS volume inside it


Ref: Erase and reformat a storage device in Disk Utility on Mac - Apple Support

Feb 13, 2026 4:55 PM in response to cincinnatimissmac

Let's start with, by "Extreme Thunderbolt 2TB hard drive" are you referring to one of the Fantom Drives models?


Regardless, is your goal to use the entire capacity of the drive to store photos/videos? It appears from your post that it is.


Finally, do you have a good backup of these photos/videos should we need to completely erase this drive and repartition it into a single partition?

Feb 13, 2026 8:44 PM in response to Tesserax

Hi there! Yes, a Fantom Drive and use just for photos/videos. I sync to iCloud and use Time Machine backups. I optimize storage of them on my iMac and full storage on iCloud. My goal is to move out of my payment for 6GB on iCloud each month. If I wipe the Fantom Drive, I think that is ok. I want to move full resolution off iCloud to the Fantom drive.

Unpartition Extreme Thunderbolt 2TB drive for photo backups

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