Disk Usage

[supermanwp]

I have deployed a 4-node RustFS cluster. Each node is equipped with two 100GB hard drives. I stored two objects in it: one is 100GB and the other is 10GB. The console shows an occupied space of nearly 120GB, while the actual disk usage is 240GB. I’ve read elsewhere that the actual usable space in a RustFS cluster is close to 70%, but in my case, it’s only 50%. Is there a misconfiguration somewhere?

cluster config:
RUSTFS_ACCESS_KEY=rustfsadmin
RUSTFS_SECRET_KEY=rustfsadmin
RUSTFS_VOLUMES="http://node{1...4}:9000/data{0...1}"
RUSTFS_ADDRESS=":9000"
RUSTFS_CONSOLE_ENABLE=true
RUSTFS_OBS_ENDPOINT=""
RUSTFS_TLS_PATH="/opt/tls"

version:
rustfs 1.0.0-alpha.35
build time : 2025-07-21 09:24:22 +00:00
build profile: release
build os : linux-x86_64
rust version : rustc 1.88.0 (6b00bc388 2025-06-23)
rust channel : stable-x86_64-unknown-linux-gnu
git branch :
git commit : bebd78f
git tag : 1.0.0-alpha.35
git status

[loverustfs]

cluster config: RUSTFS_ACCESS_KEY=rustfsadmin RUSTFS_SECRET_KEY=rustfsadmin RUSTFS_VOLUMES="http://node{1...4}:9000/data{0...1}" RUSTFS_ADDRESS=":9000" RUSTFS_CONSOLE_ENABLE=true RUSTFS_OBS_ENDPOINT="" RUSTFS_TLS_PATH="/opt/tls"

version: rustfs 1.0.0-alpha.35 build time : 2025-07-21 09:24:22 +00:00 build profile: release build os : linux-x86_64 rust version : rustc 1.88.0 (6b00bc388 2025-06-23) rust channel : stable-x86_64-unknown-linux-gnu git branch : git commit : bebd78f git tag : 1.0.0-alpha.35 git status

I don't think it's a configuration error.

Four of the 16 hard drives have been configured as parity data drives.

[supermanwp]

do I need to add up to 16 disks? Or can I interpret it as, in cluster mode, four disks are permanently occupied as parity data drives?

[loverustfs]

do I need to add up to 16 disks? Or can I interpret it as, in cluster mode, four disks are permanently occupied as parity data drives?

The system prompt is correct.

For 8 hard drives, the EC is 4.

[supermanwp]

Ok, I'll try adding hard drive or node.