Rapiddisk RAM cache for Raspberry Pi USB2 disk

_RPRND

Raspberry Pi Rapiddisk Network Disk

Quick install script incuded ;)

This setup assumes you're running a Debian/Ubuntu OS on your Rpi/PC.
Also I assume you have a device on /dev/sda that want to cache with a bit of RAM.

Hack as needed.

etc_init.d_rapiddisk

#!/bin/sh

### BEGIN INIT INFO
# Provides:		rapiddisk
# Required-Start:	kmod udev
# Required-Stop:	kmod udev
# Should-Start:		
# Should-Stop:
# Default-Start:	2 3 4 5
# Default-Stop:		0 1 6
# Short-Description:	Rapiddisk
# Description:		Rapiddisk 256M RAM cache for USB2 disk
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON_SBIN=/sbin/rapiddisk
NAME=rapiddisk
DESC="RAM cache for USB2 disk"

[ -x "$DAEMON_SBIN" ] || exit 0

. /lib/lsb/init-functions

case "$1" in
  start)
	log_daemon_msg "Starting $DESC" "$NAME"
	rapiddisk --attach 256
	rapiddisk --cache-map rd0 /dev/sda
	rapiddisk --list
	mount /dev/rc-wt_sda /mnt/storage
	log_end_msg "$?"
	;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	sync && umount /mnt/storage
	rapiddisk --cache-unmap rc-wt_sda
	rapiddisk --detach rd0
	log_end_msg "$?"
	;;
  reload)
  	log_daemon_msg "Reloading is not supported. Maybe restart?"
	log_end_msg "$?"
	;;
  restart|force-reload)
  	$0 stop
	sleep 10
	$0 start
	;;
  status)
	status_of_proc "$DAEMON_SBIN" "$NAME"
	exit $?
	;;
  *)
	N=/etc/init.d/$NAME
	echo "Usage: $N {start|stop|restart|force-reload|reload|status}" >&2
	exit 1
	;;
esac

exit 0

install.sh

#!/bin/bash
apt install libjansson-dev build-essential git
git clone https://github.com/pkoutoupis/rapiddisk.git
cd rapiddisk/
make
sudo make install
sudo make tools-install
echo "rapiddisk" > /etc/modules-load.d/rapiddisk
echo "rapiddisk-cache" >> /etc/modules-load.d/rapiddisk
echo "dm_mod" >> /etc/modules-load.d/rapiddisk
echo "dm_crypt" >> /etc/modules-load.d/rapiddisk