Feature Request: Allow Volume Shrinking in Storage Manager

General Discussion
1

Currently, UGOS Storage Manager only allows volumes to be enlarged but not shrunk. This becomes a real problem when a volume was initially sized generously and the actual usage turns out to be much lower over time.

Real-world scenario:

I had a 400 GB volume for project data. Due to Synology Drive file versioning and recycle bin accumulation, usage climbed to 346 GB (87%). After cleanup, actual usage dropped to just 50 GB — but the remaining 350 GB stays locked to that volume and cannot be reclaimed by the storage pool for other volumes.

What I’d like to see:

  • A “Shrink Volume” option in Storage Manager, allowing users to reduce a volume to a chosen size (with a safety margin above current usage)
  • UGOS handles the underlying btrfs filesystem resize and lvreduce automatically in the correct order
  • Freed space is returned to the storage pool

Why this matters:

  • The required tools (btrfs, lvreduce) are already present on UGOS
  • Btrfs natively supports online shrinking
  • Doing this manually via CLI works technically, but risks inconsistencies since UGOS is not aware of the change
  • Other NAS operating systems (TrueNAS, Unraid) support volume shrinking through their UI

This would give users much more flexibility in managing their storage without having to delete and recreate volumes.

2

Do note that this is an unofficial forum. I suggest you head over to the official forum for things like this, as you won’t get any help here.

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3

Thanks for the pointer, TLS! I’ve reposted the feature request on the official UGREEN community at community.ugreen.com. Appreciate the heads-up.

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