ThaMattie/hd-a

Hard Disk - Activity

Tool that monitors the hard disk activity via /proc/diskstats
Puts disk into standby mode with hdparm after the defined minutes of inactivity

Created for hard disks attached to single board computer in usb enclosure that has no power management

Installation

Build image with docker
Must run in privileged mode for hdparm

Docker compose

---
version: "3"
services:
  hd-a:
    container_name: hd-a
    image: thamattie/hd-a:latest
    privileged: true
    restart: unless-stopped
    environment:
      - devices=[{"name":"Data","device":"/dev/sda"}]

Device definitions

Devices are defined through the 'devices' environment variable
Cannot contain spaces outside of the quotes
This is a json with the folowing fields:

Field	Type	Optional	Default	Description	Example
name	string	no		the device name for logging	Data
device	string	no		the device path	/dev/sda
standbyAfterMinutes	number	yes	15	minutes of inactivity before issuing standby command	10
checkInterval	number	yes	30000	interval (ms) for activity check	60000

Examples

• Single device, default timing:
  [{"name":"Data","device":"/dev/sda"}]
• Single device, standby after 10 minutes, check every minute:
  [{"name":"Data","device":"/dev/sda","standbyAfterMinutes":10,"checkInterval",60000}]
• Multiple devices, default timing:
  [{"name":"Data","device":"/dev/sda"},{"name":"Media","device":"/dev/sdb"}]