Hi all, since I installed a second nvme disk to create a cache pool with zfs file system, I noticed that the hdd status led is almost always on. Even if the system is idle, at the end of the day I see that it has written dozens of gigabytes!

I have performed various tests, even stopping docker and vms. It happens even if I stop the array. I attach the system log.

 

What can it be?

Thank you

 

 

Edited February 4, 20242 yr by Gogeta

Disable VM and docker services and post the complete diagnostics after that.

Here it is, I am attaching what you requested, thanks

 

pakynas-diagnostics-20240204-1922.zip

Edited February 4, 20242 yr by Gogeta

Strange, diags aren't showing the device stats, post a screenshot of main with reads/writes display showing speed.

here is the screenshot
in the meantime I am keeping the home assistant vm disabled and pihole docker stopped. I think the problem may be pihole because I see writes for about 1gb/h which seems exaggerated to me... Specifically how do I figure out which docker writes the most? I've tried the "File Activity" plugins but it only marks me vm writes.

 

 

 

 

A few KB/s can be normal, MB/s or more is not.

Every now and then it has such peaks

With Home assistant's active VM I have just over 1gb/h and with dockers just as much, so about 2gb/h. In my opinion that's exaggerated!

How can I understand who is doing the most writing and how often?

 

 

That doesn't seem wrong really. Just checked my desktop and laptop's drives and they got 4.3 / 7.5GB/h of writes over their lifetime so far respectively.

 

 2GB/h of writes on a typical 300TBW spec is 16.8 years.

3 hours ago, Gogeta said:

With Home assistant's active VM

With VMs enabled peeking to a few MB/s is normal, not with services disabled.