I wish to have two volumes on a drive (not SSD); one HFS+, one APFS.

Would it be possible to have these on an HFS+ partition or APFS?

  • Can you please clarify what you mean by volume and partition?
    – nohillside
    Jan 7, 2019 at 17:17
  • Yes, sorry, that was very poorly phrased. If having multiple volumes on the same disk, HFS+ and APFS, would it be better to format the disk itself as APFS or HFS+?
    – paxromana
    Jan 7, 2019 at 18:02
  • - this is on an external HDD fwiw
    – paxromana
    Jan 7, 2019 at 18:03

1 Answer 1


Well, you would need a separate partition for each volume type. In other words, APFS type partitions can hold multiple volumes, but each must be a APFS volume. HFS+ type partitions can hold a single volume which must by HFS+ type.

In addition the first partition is usually a EFI type partition which contains a single volume of FAT32 type. So, you would need at least a total of three partitions on the drive.

No single partition type can support both HFS+ and APFS volumes.

  • Thank you David. You answered the question I asked, but unfortunately I asked the wrong question.
    – paxromana
    Jan 7, 2019 at 18:05
  • @paxromana: Edit the question if you need to. Otherwise, delete the question and ask a new question. Jan 7, 2019 at 18:09
  • I've posted a new question at apple.stackexchange.com/q/347854/316475 . I'm leaving this question and marking as answered as I think your answer might be useful info for others.
    – paxromana
    Jan 7, 2019 at 18:16

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