Suddenly problems accessing ntfs-HDDs und USB3

XxJooO · 2024-11-01 22:50:44

Hey there,

I'm actually using CachyOS with KDE Plasma and the system is up-to-date. Since one of the last updates, I’m experiencing some problems with ntfs3-HDDs and USB3 connected sticks or NVMEs connected to the USB3 ports.

Last problems were:

- USB 3 stick with Ventoy on it. I want to copy an iso-file from an NTFS formatted 4TB HDD to the stick. The data rate goes down to 8MiB/s and lower after a few seconds.
- I added my self hosted Nextcloud Server in my own local network via network in Dolphin and wanted to transfer 300GB+ to the nextcloud-Server, the transfer rate goes down to 500KB/s.

Some days before, there was no problem with the same actions. And it is not a hardware problem, with a parallel installation of LM22 I can copy the iso from the NTFS-HDD to the ventoy Stick with stable 140MB/s.

Any ideas where to examine?

A few hours later:

It’s getting more crazy. Because of no idea after 4h of waiting for an answer in the CachyOS forum and needing the functionality of the machine I decided to do a reinstallation - and crazy enough the problem persists… while LM22 still works.

As far as I remember I didn’t install any weird packages since it did work…

By now I tried different of the CachyOS Kernels like 6.10.12 and a higher Version like 6.12.5. But they all behave the same.

Has anyone seen the same behavior on his system. Any help would be appreciated.

V1del · 2024-11-01 23:36:39

CachyOS is not supported here, ask on the boards of your distribution.

That said this usually happens if your filesystem is in an unclean state. Boot a Windows system and run a chkdsk on the affected drive, if you can't do that and don't care about the potential file corruption, run

ntfsfix -d

on the faulty partition. https://wiki.archlinux.org/title/NTFS#U … rked_dirty

seth · 2024-11-02 08:25:02

"LM22 still works" is because you'll likely be using the more lenient nfts-3g there instead of ntfs3, your NTFS partition is still unclean an prone to data corruption on write.

XxJooO · 2024-11-02 10:05:17

Hello,

although you won't give advice for CachyOS I thank you for your suggestions!!!

But the bigger problem is the USB3 problem. When I try to copy an iso from the btrfs formatted /root partition to the USB stick, I see the same dropping of the transfer rate though...

So first of all I'll start a Windows and try to repair the NTFS formatted disks. I'll keep you updated.

seth · 2024-11-02 15:06:03

When I try to copy an iso from the btrfs formatted /root partition to the USB stick, I see the same dropping of the transfer rate though...

That's normal - https://lonesysadmin.net/2013/12/22/bet … rty_ratio/

When writing a fast source to a slow target you initially get very high throughput because you're actually just writing to RAM.
Once the cache starts to flush you approach the actual write speed.
More accurate speed predictions require more frequent cache flushes and reading back the actually written data, what however makes the process systematically slower.
It's what the windows explorer does to estimate the writing speed/duration, but I'm not aware of any filebrowser on linux doing this (doesn't mean they exist, but I've not seen that)

Arch Linux

#1 2024-11-01 22:50:44

Suddenly problems accessing ntfs-HDDs und USB3

#2 2024-11-01 23:36:39

Re: Suddenly problems accessing ntfs-HDDs und USB3

#3 2024-11-02 08:25:02

Re: Suddenly problems accessing ntfs-HDDs und USB3

#4 2024-11-02 10:05:17

Re: Suddenly problems accessing ntfs-HDDs und USB3

#5 2024-11-02 15:06:03

Re: Suddenly problems accessing ntfs-HDDs und USB3

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