Sharing certain folder with certain size

Insight & Feedback
1

Hello,

i want to create folder that I share with certain users with fixed size. is this possible?

example: i have 16tb raid 1, i want to create a folder with 4tb size and share it

2

Hi,
Could you please share a bit more about your use case or the reason behind needing a fixed-size shared folder?
For example, is this for quota control, billing, performance isolation, or multi-tenant management? The more detailed the better

Understanding the scenario may help others provide a more accurate or practical solution.
Thanks.

3

i actually need to assign each folder to my employee. so i guess it is quota control & multi tenant. so each users can only access that specific folder with specific size treshold.

OS: zimaOS+

4

I also got issue about long sync time

Screenshot 2026-01-14 at 3.24.02 PM
Screenshot 2026-01-14 at 3.24.02 PM590Ă—460 20.9 KB

Screenshot 2026-01-14 at 3.23.49 PM
Screenshot 2026-01-14 at 3.23.49 PM1264Ă—242 12.5 KB

5

For the “fixed size folder” request: I believe ZimaOS currently does not support per folder size limits (folder quotas) in the UI. A shared folder will normally consume storage from the full pool until the pool is full.

If the goal is quota control for employees, I suggest these options:

  1. Create one shared folder per employee and set permissions so each user can only access their own folder (this works well for access control)
  2. If you need strict size limits, I suggest using an app that supports quotas such as Nextcloud, because it supports per user and per folder quota management
  3. Advanced option is filesystem quotas at Linux level, but I believe ZimaOS does not officially expose this and it may not persist after updates

About the long sync time: I believe your screenshot shows RAID1 resyncing. During RAID resync, performance will be reduced and file sync or transfers will take much longer. I suggest waiting until resync reaches 100 percent, then test again.

If you share what you mean by sync (SMB transfer, Google Drive mount, Nextcloud sync, Syncthing), I suggest we can narrow it down quickly.

6

oh no no. it’s just slow since nothing is in there… is it normal? since the drive for the raid is empty

7

Yes, it can still be normal even if the RAID is empty.

I believe the RAID resync is still rebuilding and verifying the full disk at block level, which can make the system feel slow.

I suggest running these checks to confirm status and disk health:

  1. Check RAID rebuild progress
cat /proc/mdstat
  1. Show full RAID details (replace md0 if different)
mdadm --detail /dev/md0
  1. Check if the pool is under heavy IO
iostat -xz 1 5

(if iostat is missing)

apt-get update && apt-get install -y sysstat
  1. Check SMART health for each drive (replace sda sdb with your drives)
smartctl -a /dev/sda | egrep -i "model|serial|health|reallocated|pending|uncorrect|error"
smartctl -a /dev/sdb | egrep -i "model|serial|health|reallocated|pending|uncorrect|error"

(if smartctl is missing)

apt-get update && apt-get install -y smartmontools

If you paste the output of cat /proc/mdstat and mdadm --detail /dev/md0, I believe we can confirm immediately whether the slow speed is simply the resync process.

8

alright, confirmed it’s just rebuilding.

i will check nextcloud for this.
thanks

9

Perfect, glad it’s confirmed it was just the rebuild.

Quick setup (ZimaOS):

  1. Go to Apps and install Nextcloud
  2. During install, make sure the Nextcloud data path points to your RAID storage (not the OS disk)
  3. Open Nextcloud and create one user per employee (Users in the admin panel)
  4. Set quotas
    Admin settings > Users > set a quota for each user (example 4 TB)
  5. Create folders per employee
    Each user can have their own folder, or you can create shared folders and restrict access

I suggest giving each employee their own Nextcloud user account and quota. That is the cleanest way to enforce storage limits.

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