NASpi

Goal

Providing a NAS for Mac, Linux and Windows based on a Raspberry Pi and Samba.

WEB Interface

WEBmin is very powerful, but sometimes its easier to edit the Samba file directly. ;)
Direct edit is also available in the WEBmin.

Samba

smb.conf

Example share

[Public]
	path = /mnt/sda1/Public
	public = yes
	force group = users
	user = @users
	writeable = yes

Mac TimeMachine

https://wiki.samba.org/index.php/Configure_Samba_to_Work_Better_with_Mac_OS_X

Global extra settings

[global]
	fruit:metadata = stream
	fruit:posix_rename = yes 
	fruit:model = Xserve
	fruit:nfs_aces = no
	fruit:wipe_intentionally_left_blank_rfork = yes 
	fruit:veto_appledouble = no
	fruit:delete_empty_adfiles = yes

Share example

[TimeMachine]
	public = yes
	writeable = yes
	path = /mnt/sda1/TimeMachine
	user = @users
	fruit:time machine = yes

Windows

To enable the Window Explorer to find a Samba Server the wsdd2 package must be installed:

sudo apt install wsdd*

Users

The easiest way is to add a user to the RPi with the user mananger and then to Samba:

sudo smbpasswd -a <linuxuser>

RAID 1

Mirror two identical SSD's.
For the basic setup I used this link:
https://kraisnet.de/index.php/de/themen/11-nuetzliches/34-raid-1-auf-raspberry-pi-einrichten

fstab

/dev/md0        /media/cloudraid        ext4    defaults,auto,users,rw  0       0

mdadm

Show the raid 1 details:

sudo mdadm --query --detail /dev/md0
/dev/md0:
           Version : 1.2
     Creation Time : Sat Apr 19 11:02:25 2025
        Raid Level : raid1
        Array Size : 1953382336 (1862.89 GiB 2000.26 GB)
     Used Dev Size : 1953382336 (1862.89 GiB 2000.26 GB)
      Raid Devices : 2
     Total Devices : 2
       Persistence : Superblock is persistent

     Intent Bitmap : Internal

       Update Time : Sun Apr 20 08:38:14 2025
             State : active 
    Active Devices : 2
   Working Devices : 2
    Failed Devices : 0
     Spare Devices : 0

Consistency Policy : bitmap

              Name : naspi:0  (local to host naspi)
              UUID : 4bf34efa:443aedd8:c423d0b7:08295b0e
            Events : 8152

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1

SSMTP

For sending notifications from for example Raid.
https://blog.edmdesigner.com/send-email-from-linux-command-line/

Fan

Install pigpiod

sudo apt install pigpio

Start daemon

sudo systemctl start pigpiod

Autostart deamon

sudo systemctl enable pigpiod

Shell script

Using GPIO4, header pin 7, for the 100Hz PWM.

#!/bin/bash
while true
do
  TEMP=$(cat /sys/class/thermal/thermal_zone0/temp)
  RV=$(pigs pfs 4 100)
  PWM=0
  if (( $TEMP > 45000))
  then
    PWM=75
  fi
  if (( $TEMP > 50000))
  then
    PWM=125
  fi
  if (( $TEMP > 55000))
  then
    PWM=175
  fi
  if (( $TEMP > 60000))
  then
    PWM=225
  fi
  echo temp=$TEMP pwm=$PWM
  pigs p 4 $PWM
  sleep 10
done

Startup at reboot

crontab -e

@reboot /home/pi/fan.sh&

Connecting the Fan

FET BS170 connection:
----------------------------------------
6 (GND) Source
7 (GPIO4) Gate
2 (+5V) Fan red wire

Fan black wire to FET Drain
A resistor of 47k between GND and FET Gate will shutoff the fan in case the GPIO is in an undefined state.\\

Innovative Model Railroad Control System

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