Jump to content

NVME speeds - Struggling to understand?


mbc0

Recommended Posts

Posted

Hi,

 

I have 3 different NVME pools on my main server as pictured.

All tests have been done using midnight commander.

If I copy between any of the pools using /mnt/cache - /mnt/cachetwo - /mnt/Nvmepool I get 450-500 mb/s which is great, but if I copy from any of those pools to a user share I only get around 150mb/s ?  

I don't understand this as the shares are set to use the NVME cache pools and parity drive is not being used when writing to the pools so why are file transfers slower when writing to user shares?

 

Any guidance would be very appreciated!

Screenshot 2024-09-15 104054.png

unraid1-diagnostics-20240915-1036.zip

Posted
33 minutes ago, JorgeB said:

User shares always add some overhead going through FUSE, set the pools to exclusive if possible, and you can still use the user shares and will bypass FUSE.

What precisely do you mean by this?

Posted
3 hours ago, JorgeB said:

User shares always add some overhead going through FUSE, set the pools to exclusive if possible, and you can still use the user shares and will bypass FUSE.

Thank you, so there is a reason, even though I do not know what FUSE is/is doing (I will investigate) Can you please enlighten me on the setting the pools to exclusive? I really do not know what you mean?

 

Thank you!

Posted
17 minutes ago, mbc0 said:

Can you please enlighten me on the setting the pools to exclusive?

There is an option to enable Exclusive Share support under Settings->Global Share settings.    I would suggest you make sure you read the help built into the GUI for that setting to understand when it applies. 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...