Huge "APFS Volume VM" - How Can I Resize?

Question

iMac Intel 27" Retina 5K Display (Mid 2017)

모델 A1419 / EMC 3070 / Mid 2017 / 3.4, 3.5 또는 3.8 GHz Core i5 또는 4.2 GHz Core i7 Kaby Lake Processor (ID iMac18,3) / Retina 5K Display. 시스템이 매우 유사하므로 이전 iMac Intel 27" Retina 5K Display (Late 2014 & 2015) 안내서를 참고하십시오.

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Carl @happycarl

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게시일: 2019년 3월 4일

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Huge "APFS Volume VM" - How Can I Resize?

I took out an old 240GB SanDisk SSD to use in an enclosure as my Time Machine backup. I reformatted to APFS and wow!

The “APFS Volume VM” is 17.2GB! No success making it smaller.

Suggestions and ideas please.

Thank You,

Carl

/dev/disk4 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *240.1 GB disk4

1: EFI EFI 209.7 MB disk4s1

2: Apple_APFS Container disk5 239.8 GB disk4s2

/dev/disk5 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +239.8 GB disk5

Physical Store disk4s2

1: APFS Volume Preboot 20.5 KB disk5s2

2: APFS Volume Recovery 20.5 KB disk5s3

3: APFS Volume VM 17.2 GB disk5s4

4: APFS Volume 240GB SSD 839.7 KB disk5s1

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Did you have this setup as a Fusion Drive?

You appear to have quite a few volumes which you need to delete.

Dan 의 2019년 3월 4일

Dan. You're incredible. Your plethora of responses makes iFixit. They'd be nuts not to hire you.

It wasn't a Fusion Drive. I installed my old MacBook Air blade into my iMac. That's now the boot drive. What you're seeing is from the backup SSD I was using to backup my Documents Folder on the new 1TB SSD I put in place of the old cruddy 1TB HDD. I have no idea how the backup SSD got so complicated. I pretty much gave up and fixed the problem by doing a hard wipe back to its original 240GB state. No more containers, volumes, etc.

Yet, the backup SSD is still filling up! But not quite as bad. This time only 13GB instead of the 17.2GB with what I can only assume to be Time Machine Backups.

So. How can I stop Time Machine from backing up to my system because I have a Time Capsule! I thought everything would just go onto the Time Capsule. Doesn't that make more sense or is this a backup of a backup on my external backup SSD?

Thank you,

Carl

Carl 의 2019년 3월 7일

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Did you have this setup as a Fusion Drive?

You appear to have quite a few volumes which you need to delete. — Dan
Dan. You're incredible. Your plethora of responses makes iFixit. They'd be nuts not to hire you.

It wasn't a Fusion Drive. I installed my old MacBook Air blade into my iMac. That's now the boot drive. What you're seeing is from the backup SSD I was using to backup my Documents Folder on the new 1TB SSD I put in place of the old cruddy 1TB HDD. I have no idea how the backup SSD got so complicated. I pretty much gave up and fixed the problem by doing a hard wipe back to its original 240GB state. No more containers, volumes, etc.

Yet, the backup SSD is still filling up! But not quite as bad. This time only 13GB instead of the 17.2GB with what I can only assume to be Time Machine Backups.

So. How can I stop Time Machine from backing up to my system because I have a Time Capsule! I thought everything would just go onto the Time Capsule. Doesn't that make more sense or is this a backup of a backup on my external backup SSD?

Thank you,

Carl — Carl