Jump to content

Constant Writes to SSD

2 posts in this topic Last Reply

Recommended Posts

So for a couple months now I have been monitoring my drive writes with Grafana and I have noticed that something is constantly writing to my nvme ssd to the tune of 30GB a day.


I however am struggling to figure out what is causing it.


At first I assumed it was the influxdb for grafana but I put that on another disk and it did not help.

At this point I have moved all databases/downloading onto other drives to try and isolate the problem. I also moved the docker image to another disk.

The only notable things that exists on the NVME drive at this point is a plex database, docker image, docker config files


Using grafana I pulled the docker io_service_bytes_recursive_write value and discovered that docker has only written 737MB in the past two days to all drives.

I also have live monitoring of writes using field(write_bytes) Mean() non_negative_derivative(1s) which shows 1MB/s every 20-30 seconds or so. My grafana database receives data from the server every 10s.


So far I have tried a few command line utils but they just show total writes across the system which is not helpful to me.

On thing I did notice while trying this was btrfs_transacti having a decent amount of writes.

Only problem is that my server has 3 ssds with btrfs and they are all used for various things.


How can I figure out what is doing this?

It has written 61GB in 44 hours, about 1.38GB per hour, which is just insane.

I almost want to just completely wipe the drive and unraid install off the usb and start with a fresh config.


System Info:

R720 XD

960 Pro 512GB nvme

Edited by potatows

Share this post

Link to post

Open Files Plugin.  But, the most obvious answer is either a VM's vdisk, or a docker app.

Share this post

Link to post

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.

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.