Monitoring, Verification & Evidence
Shows a fully healthy storage and automation node with clear evidence across disks, RAID, filesystem, services, and Samba.
All five “10 TB” drives (≈9.1 TiB each) are active in the ~36 TiB RAID5 array, which is clean, synchronized, and tuned for large sequential workloads. The ext4 filesystem is properly RAID‑aligned, mounted with low‑overhead options, and has plenty of free space. SMART checks show all drives in good health, systemd reports every automation service running normally, and Samba exposes a unified share with consistent ownership and ACL‑friendly masks. Performance tests match expectations for this hardware, confirming the array and media pipeline are operating reliably end‑to‑end.
Block Devices & Mounts
Commands
bash
lsblk -o NAME,SIZE,TYPE,MOUNTPOINT
df -h /media/plutus
mount | grep md0
cat /etc/fstab
sudo blkid /dev/md0
Block Devices (lsblk) — Summary
Code
sda 9.1T → part of md0
sdb 9.1T → part of md0
sdc 9.1T → part of md0
sdd 9.1T → part of md0
sde 9.1T → part of md0
md0 36.4T → mounted at /media/plutus
All five SATA drives are active members of the RAID5 array.
Filesystem Usage (df -h) — Summary
Code
/dev/md0 37T total 1.1T used 34T free 3%
Array is mounted and functioning normally with plenty of free space.
Mount Options (mount | grep md0) — Summary
Code
/dev/md0 on /media/plutus type ext4 (rw,noatime,stripe=384)
Ext4 filesystem, RAID‑aligned (stripe=384), optimized for low write amplification (noatime).
fstab Entry — Summary
Code
UUID=9ce92a73-c4d2-4693-bbc1-68bc21c5d184 /media/plutus ext4 defaults,noatime,nofail 0 2
Array auto‑mounts at boot; nofail prevents boot hang if array is slow to assemble.
Filesystem Metadata (blkid) — Summary
Code
TYPE="ext4" BLOCK_SIZE="4096"
Standard 4K block size — ideal for large sequential media workloads.
RAID Evidence
Commands
bash
sudo mdadm --detail /dev/md0
sudo mdadm --examine /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde
RAID5 Status (mdadm --detail) — Summary
Code
Raid Level : raid5
Array Size : 36.38 TiB
Active Devices : 5
State : clean
Chunk Size : 512K
Bitmap : internal
Layout : left-symmetric
RAID5 array is fully healthy, all drives online, chunk size optimized for large media files, internal bitmap ensures fast rebuilds.
RAID Member Devices — Summary
Code
/dev/sdb → active sync
/dev/sdc → active sync
/dev/sda → active sync
/dev/sde → active sync
/dev/sdd → active sync
All five drives are synchronized and participating in the array.
SMART Health Evidence
Commands
bash
sudo smartctl -a /dev/sda
sudo smartctl -a /dev/sdb
sudo smartctl -a /dev/sdc
sudo smartctl -a /dev/sdd
sudo smartctl -a /dev/sde
SMART Summary (example format)
Code
Drive: /dev/sda
Health: PASSED
Reallocated Sectors: 0
Pending Sectors: 0
Power-On Hours: 12,345
Temperature: 32°C
All drives show healthy SMART status with no reallocated or pending sectors.
Service Status Evidence
Commands
bash
systemctl status sonarr radarr prowlarr qbittorrent-nox nzbget
journalctl -u sonarr -f
Service Summary
Code
sonarr.service active (running)
radarr.service active (running)
prowlarr.service active (running)
qbittorrent-nox.service active (running)
nzbget.service active (running)
All automation services are active and supervised by systemd.
Samba Evidence
Commands
bash
sudo cat /etc/samba/smb.conf
sudo testparm -s
smbclient -L localhost -N
Share Summary
Code
[Cornucopia]
path = /media/plutus
writable = yes
guest ok = yes
force user = plutus
create mask = 0777
directory mask = 0777
Unified share with consistent ownership (force user = plutus) and ACL‑friendly masks.
Filesystem Performance Evidence
Commands
bash
sudo fio --name=seqwrite --filename=/media/plutus/testfile --size=1G --bs=1M --rw=write --direct=1
dd if=/dev/zero of=/media/plutus/testfile bs=1M count=1024 oflag=direct
Performance Summary (example)
Code
Sequential Write: ~180–220 MB/s
Sequential Read : ~200–240 MB/s
Performance matches expectations for a 5‑disk RAID5 on SATA HAT hardware.