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Scrutiny SMART Monitoring in Container Manager on a Synology NAS

Last updated on 28 January 2024

Important or Recent Updates
Historic UpdatesDate
Updated to use Container Manager and Projects29/05/2023
Added additional security option to the compose to restrict the container from gaining new privileges25/10/2023
Historic Updates

What is Scrutiny?

Scrutiny is a Hard Drive Health Dashboard & Monitoring solution, merging manufacturer provided S.M.A.R.T metrics with real-world failure rates.

Let’s Begin

In this guide I will take you through the steps to get Scrutiny up and running in Docker.

In order for you to successfully use this guide please set up your Docker Bridge Network first.

Getting our drive details

We need to get some details about our drives in order for Scrutiny to read their SMART data.

It’s time to get logged into your Diskstation via SSH, in this guide I am using Windows Terminal however the steps will be similar on Mac and Linux,

Head into the DSM Control Panel > Terminal & SNMP and then enable SSH service.

Open up ‘‘Terminal’

Now type ‘ssh’ then your main admin account username @ your NAS IP Address and hit Enter

ssh drfrankenstein@

You will then be asked to enter the password for the user you used you can either type this or right click in the window to paste (you won’t see it paste the info) then press enter.

Enter the login information for your main Synology user account, you will not be able to see the password as you type it. (If you are using a password manager right-clicking in the window will paste – you won’t be able to see it)

Now we are logged in we just need to do a single command to see our drives, note I am not prefacing this command with sudo as we don’t need the low level detail. You will see permission denied errors, but these can be ignored.

fdisk -l

The output you will see depends on the model NAS you own, the two examples below are from an 1821+ and an 1815+ which have 8 bays and the 1821+ has up to 2 NVMEs.

The 1815+ has 8 drives broken down from sda to sdh

The 1821+ has 8 drives broken down into SATA and NVME devices, sata1 to sata8 with the nvme0n1 and nvme1n1. (Note if you have any eSATA devices connected these will also show)

Make note of the devices you see in your output as we will need them for the config file and compose.

Config Files and Folders

Next let’s create the folders the container will need. Head into FileStation and create a subfolder in the ‘docker’ share called ‘scrutiny’ and then within that another called ‘influxdb’ it should look like the below.

Then if you don’t have one already from my other guides create another folder in the ‘docker’ share called ‘projects’ and within that another one called ‘scrutiny’

Next comes the config files, You can edit this file in a number of ways, but to keep the guide OS-agnostic we will be using the Synology Text Editor package which can be installed via Package Center.

Open up a new text document and paste one of the two code snippets below into it. Use the one that matches up with the way your drives are shown in the previous step (if you come across anything different let me know in the comments!)

Type 1

version: 1
  id: ""
  - device: /dev/sata1
    type: 'sat'
  - device: /dev/sata2
    type: 'sat'
  - device: /dev/sata3
    type: 'sat'
  - device: /dev/sata4
    type: 'sat'
  - device: /dev/sata5
    type: 'sat'
  - device: /dev/sata6
    type: 'sat'
  - device: /dev/sata7
    type: 'sat'
  - device: /dev/sata8
    type: 'sat'
  - device: /dev/nvme0n1
    type: 'nvme'
  - device: /dev/nvme1n1
    type: 'nvme'

Type 2

version: 1
  id: ""
  - device: /dev/sda
    type: 'sat'
  - device: /dev/sdb
    type: 'sat'
  - device: /dev/sdc
    type: 'sat'
  - device: /dev/sdd
    type: 'sat'
  - device: /dev/sde
    type: 'sat'
  - device: /dev/sdf
    type: 'sat'
  - device: /dev/sdg
    type: 'sat'
  - device: /dev/sdh
    type: 'sat'
  - device: /dev/nvme0n1
    type: 'nvme'
  - device: /dev/nvme1n1
    type: 'nvme'

You will need to edit the config file in line with the number of drives you had in the output earlier either adding or removing lines accordingly, including adding or removing the NVME drives.

Next you can save this file as ‘collector.yaml’ in the ‘/docker/scrutiny’ folder.

Notifications Config (optional)

This step is optional and depends on if you want to set up some notifications in case one of your drive has issues.

As of writing there are 14 different notification method, as you can imagine I cannot cover every single type in this guide, but this will get the config file in place for you to amend based on your preferences

Open up a new file Text Editor again, this time you need to copy and paste the full contents of the example config file located here

Scroll to the bottom of the file where you will see a number of config options for notifications. You will need to the remove the # from the ‘notify’ and ‘urls’ lines and then depending on which type of notification you decide to set up the # will need to be removed from the corresponding line.

The level of notification you receive (Critical or All Issues) can be set up in the WebUI once Scrutiny is up and running.

Removing the # from the required lines

Finally, save this file as ‘scrutiny.yaml’ into the /docker/scrutiny folder.

Docker Compose

We will be using Docker Compose in the Projects section of Container Manager to set up the container.

Open up Container Manager and click on Project then on the right-hand side click ‘Create’.

In the next screen we will set up our General Settings ‘Project Name’ will be ‘scrutiny’ the ‘Path’ click the button and select the folder we created earlier in ‘/docker/projects/scrutiny’. ‘Source:’ change the drop-down to ‘Create docker-compose.yml’.

Next we are going to drop in our docker compose configuration copy all the code in the box below and paste it into line ‘1’ just like the screenshot.

    container_name: scrutiny
      - SYS_RAWIO
      - SYS_ADMIN
      - 6090:8080/tcp # webapp
      - 8086:8086/tcp # influxDB admin
      - /run/udev:/run/udev:ro
      - /volume1/docker/scrutiny:/opt/scrutiny/config
      - /volume1/docker/scrutiny/influxdb:/opt/scrutiny/influxdb
      - /dev/nvme0n1:/dev/nvme0n1
      - /dev/nvme1n1:/dev/nvme1n1
      - /dev/sata1:/dev/sata1
      - /dev/sata2:/dev/sata2
      - /dev/sata3:/dev/sata3
      - /dev/sata4:/dev/sata4
      - /dev/sata5:/dev/sata5
      - /dev/sata6:/dev/sata6
      - /dev/sata7:/dev/sata7
      - /dev/sata8:/dev/sata8
    network_mode: synobridge
      - no-new-privileges:true
    restart: unless-stopped

As you can see the devices section contains all our drives, you will need to amend this again in line with the config file you created earlier. You will need to amend the paths each side of the : so they match, adding or removing drives accordingly including the NVMEs.

e.g., /dev/sata1:/dev/sata1 or /dev/sda:/dev/sda and so on.

In addition to this you will see in the ‘environment’ section three variables that will need to be updated as outlined below, these secure the database used by scrutiny.

SCRUTINY_WEB_INFLUXDB_TOKENenter a sting of characters you can use almost anything treat it like a password so a nice long string
SCRUTINY_WEB_INFLUXDB_INIT_USERNAMEThis can be anything you like

These 3 values are only required for the first ever setup – you can remove them once Scrutiny is up and running but keep them safe in case you ever need them. Maybe in Vaultwarden!

Once you have made the edits press ‘Next’

You do not need to enable anything on the ‘Web portal settings’ screen click ‘Next’ again.

On the final screen click ‘Done’ which will begin the download of the container image and once downloaded they will be launched!

You will now see Scrutiny running and should have a green status on the left-hand side.

You should now be able to access the Scrutiny WebUI by going to your NAS IP followed by port 6090


Sometimes it can take a few minutes before all your drives appear, as Scrutiny needs to obtain their information so don’t panic if it’s initially empty. You can now adjust settings for the UI and Notifications in the WebUI.

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Published inDockerOther Tools 7.2Synology


  1. newuser newuser

    Thank you alot to explayn how it works you are really good teacher but i have error “error response from daemon: network synobridge not found exit code: 1”

    How to sole this?

  2. Odd result, Scrutiny shows one drive in my array as FAILED while Synology Storage Manager and IronWolf Health separate show it as “healthy”. Maybe time to add a drive…

    • Dr_Frankenstein Dr_Frankenstein

      Keep in mind you can switch from the pure SMART data and Scrutiny which uses additional metrics to determine if something is off vs the Backblaze numbers. 5 of my 8 drives fail ‘Scrutiny’ but pass SMART

  3. hartlandyard hartlandyard


    Thanks for the tuto
    However when i try to create the project i have below error message
    Any idea?

    incorrect type. expected « array »

    • Dr_Frankenstein Dr_Frankenstein

      Check your spacing in the yaml and config files as it suggests something is not right or missing. Feel free to post it to and ping me the link on here so I can check it.

      • hartlandyard hartlandyard


        many thanks
        now it works however it’s not reporting any value. Screen is empty

        container_name: scrutiny
        – SYS_RAWIO
        – SYS_ADMIN
        – “6090:8080” # webapp
        – “8086:8086” # influxDB admin
        – /run/udev:/run/udev:ro
        – /volume1/docker/scrutiny:/opt/scrutiny/config
        – /volume1/docker/scrutiny/influxdb:/opt/scrutiny/influxdb
        # – /dev/nvme0n1:/dev/nvme0n1
        # – /dev/nvme1n1:/dev/nvme1n1
        – /dev/sda:/dev/sda
        – /dev/sdb:/dev/sdb
        – /dev/sdd:/dev/sdc
        – /dev/sde:/dev/sdd
        – /dev/sdf:/dev/sde
        – /dev/sdc:/dev/sdf
        # – /dev/sdg:/dev/sdg
        # – /dev/sdh:/dev/sdh

          • Mike Mike


            Any chance you could publish what if anything you did to get this working? Have the same issue, in that the container starts, i can access the webpage, but everything is empty. The project file is pretty much the same as the example, with the exception of the docker folder and the device selected.



            • Dr_Frankenstein Dr_Frankenstein

              Hey Mike

              Could you reach out via the Help Me! page on the left menu I can have a look at your config files.

              Leave the container running for a while to see if anything appears as the container will do a scheduled smart scan.

  4. Sladester Sladester

    Did it, and it all worked! Yay me lol.

    One question, I chose to use the pushover alerting, as I use pushover for other things but I’ve never used shoutrr. I think I set it up correctly, added my pushover api and user keys,. Is there anyway to test the alerting in scrutiny? Would hate to not know the alerts are not working until too late.

    One oddity, I have 4 drives, all added at the same time, and there is a 1 day difference in the “powered on days” for one of them. Not worrying about it, but strange.

  5. Vista Vista

    Hello, one more question 🙂
    If I add 2 2.5 inch ssd drives for cache, should I do everything from the beginning or just modify the YAML file, if it’s possible, should I stop the container?

    • Dr_Frankenstein Dr_Frankenstein

      Hey, if you add as cache in a standard SATA bay. You just need to stop the container add them to the compose and config file then start the container again and they will appear.

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