synology dsm7 and netdata docker container throw error on ssd cache

[tradexsrl]

Hi , i have installed the docker container on some synology nas with dsm7 and on nas with ssd cache i get this false positive:

why ? i checked and ssd cache are online and ok....

my compose file is like this :
version: '3'
services:
netdata:
image: netdata/netdata
container_name: netdata
network_mode: host
pid: host
restart: unless-stopped
healthcheck:
test: ["CMD", "curl", "-fs", "-S", "--max-time", "2", "http://localhost:19999"]
interval: 30s
timeout: 10s
retries: 5

cap_add:
  - SYS_PTRACE
  - SYS_ADMIN
security_opt:
  - apparmor:unconfined
volumes:
  - /volume1/docker/netdata/config:/etc/netdata
  - /volume1/docker/netdata/data:/var/lib/netdata
  - /volume1/docker/netdata/cache:/var/cache/netdata
  - /var/run/docker.sock:/var/run/docker.sock:ro
  - /run/dbus:/run/dbus:ro