Hi, I'm getting this error filling up my logs which caused my server to stop responding earlier today requiring a reboot. After doing some search it seems like this error is usually caused by one of the shares exceeding it's minimum free space however looking through my shares I'm not seeing one like this?

 

unraider-diagnostics-20240116-2323.zip

That message does not explain why the system would stop responding.  It means that the cache has fallen below the minimum free space value allowed to write a new file to the cache, so the file will be written directly to the array instead.  You have 100GB set as the minimum free for the cache so that is the value probably triggering it.

 

I see that you have macvlan networking enabled for docker, but have not disabled bridging on eth0 as is recommended in the Unraid release notes to get maximum stability when using macvlan.  Any reason for this?

 

On 1/17/2024 at 12:22 AM, itimpi said:

That message does not explain why the system would stop responding.

I misspoke somewhat, the webui wouldn’t load but my dockers and VMs were still accessible. 
 

On 1/17/2024 at 12:22 AM, itimpi said:

It means that the cache has fallen below the minimum free space value allowed to write a new file to the cache, so the file will be written directly to the array instead.  You have 100GB set as the minimum free for the cache so that is the value probably triggering it.

I had a hard time finding this setting initially, but I believe it’s the one in the screenshot below , which currently looks to have a minimum free setting of 100 kB vs 100 GB - is the wrong setting?
 

Additionally, I’m not sure how to change this value, perhaps I need to first stop the array?

 

 

On 1/17/2024 at 12:22 AM, itimpi said:

I see that you have macvlan networking enabled for docker, but have not disabled bridging on eth0 as is recommended in the Unraid release notes to get maximum stability when using macvlan.  Any reason for this?

No reason really – reading through the release notes iIt felt like this was an optional step but I’ll go back and reread it 😅. 

 

 

Edited January 18, 20242 yr by unRaide

shfs: share cache full

 means that a share that is using cache is hitting the share floor, this is not the pool floor, when the pool floor is hit it's logged as:

 

shfs: cache disk full

 

On 1/17/2024 at 2:27 AM, unRaide said:

Hi, I'm getting this error filling up my logs which caused my server to stop responding earlier today requiring a reboot. After doing some search it seems like this error is usually caused by one of the shares exceeding it's minimum free space however looking through my shares I'm not seeing one like this?

 

unraider-diagnostics-20240116-2323.zip 184.97 kB · 3 downloads

Did you ever solve this?  I just noticed the same command filling up my log.  As I search around I see comments that this is normal.  I have attached my diagnostics in case anyone wants to help out.  Thanks.

odin-diagnostics-20250225-0701.zip

bump

On 2/25/2025 at 12:03 PM, The Transplant said:

I just noticed the same command filling up my log.

You can see just above your original post what that message means.

@JorgeB Sorry, I wasn't clear.  Let's assume for a minute that I don't want this message filling up my logs. The OP was asking what they need to do to their settings to prevent the situation occurring and/or getting rid of the message.  They did not get an answer to that question.  Is this normal?  Is there a setting I should change to prevent this situation from happening some or all of the time?  Thanks

45 minutes ago, The Transplant said:

.  Let's assume for a minute that I don't want this message filling up my logs.

The only way to get rid of the message is to configure the share in a way that no longer causes, i.e., change the share floor.

@JorgeB Thanks.  I was hoping to get some more information on how to go about changing the share floor in an intelligent way.  I google share floor on unraid and got no documentation.  I read a few posts but nothing really speaks to this.  I looked in the unraid documentation but nothing comes up under shares about setting the share floor, that I can see.  I did see the Dynamix plugin so I installed that and arbitrarily set it to 50GB.  But again I don't know what I am doing and so far I have not found any information on how to learn.  I will post in the dynamix thread to see if someone there will help me.

https://docs.unraid.net/unraid-os/manual/shares/user-shares/#minimum-free-space