added script to create and to remove ramdisk, use at your own risk

scripts/create_ramdisk_for_sql.sh

@@ -0,0 +1,107 @@
+#!/usr/bin/env bash
+SOURCE="${BASH_SOURCE[0]}"
+DIR="$( dirname "$SOURCE" )"
+while [ -h "$SOURCE" ]
+do
+    SOURCE="$(readlink "$SOURCE")"
+    [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE"
+    DIR="$( cd -P "$( dirname "$SOURCE"  )" && pwd )"
+done
+DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+
+# Make sure only root can run our script
+if [[ $EUID -ne 0 ]]; then
+    echo "This script must be run as root"
+    exit 1
+fi
+
+source $DIR/../defaults.sh
+
+#edit this to allow script to run, be sure of the paths
+#the ramdisk needs to be twice the size of the parts table max size, it needs room to copy itself during optimise
+#i take no responsibility if this fails and you lose you db
+#remove the next 2 lines when you have edited this file properlly
+echo "Please edit this script, very carefully!"
+exit
+
+export USER="username"
+export PATH_RAMDISK="/var/ramdisk"
+export MYSQL_PATH="/var/lib/mysql/newznab"
+export SQL_BACKUP="/home/$USER/sql_backup"
+
+/etc/init.d/mysql stop
+
+if ! grep -q '#RAMDISK' "/etc/fstab" ; then
+  echo "" | sudo tee -a /etc/fstab
+  echo "#RAMDISK" | sudo tee -a /etc/fstab
+  echo "tmpfs $PATH_RAMDISK tmpfs user,nodev,nodiratime,nosuid,size=5G,mode=777 0 0" | sudo tee -a /etc/fstab
+fi
+
+mkdir -p $PATH_RAMDISK
+
+#determine if ramdisk is in fstab
+if [[ ! `mount | grep "$PATH_RAMDISK"` ]]; then
+    mount "$PATH_RAMDISK"
+fi
+
+if [ ! -d "$SQL_BACKUP" ]; then
+    mkdir $SQL_BACKUP
+fi
+
+
+if [ ! -h "$MYSQL_PATH/parts.frm" ]; then
+    cp $MYSQL_PATH/parts.frm $SQL_BACKUP/
+    mv $MYSQL_PATH/parts.frm $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/parts.frm $MYSQL_PATH/
+fi
+if [ ! -h "$MYSQL_PATH/parts.MYD" ]; then
+    cp $MYSQL_PATH/parts.MYD $SQL_BACKUP/
+    mv $MYSQL_PATH/parts.MYD $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/parts.MYD $MYSQL_PATH/
+fi
+if [ ! -h "$MYSQL_PATH/parts.MYI" ]; then
+    cp $MYSQL_PATH/parts.MYI $SQL_BACKUP/
+    mv $MYSQL_PATH/parts.MYI $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/parts.MYI $MYSQL_PATH/
+fi
+
+
+if [ ! -h "$MYSQL_PATH/partrepair.frm" ]; then
+    cp $MYSQL_PATH/partrepair.frm $SQL_BACKUP/
+    mv $MYSQL_PATH/partrepair.frm $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/partrepair.frm $MYSQL_PATH/
+fi
+if [ ! -h "$MYSQL_PATH/partrepair.MYD" ]; then
+    cp $MYSQL_PATH/partrepair.MYD $SQL_BACKUP/
+    mv $MYSQL_PATH/partrepair.MYD $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/partrepair.MYD $MYSQL_PATH/
+fi
+if [ ! -h "$MYSQL_PATH/partrepair.MYI" ]; then
+    cp $MYSQL_PATH/partrepair.MYI $SQL_BACKUP/
+    mv $MYSQL_PATH/partrepair.MYI $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/partrepair.MYI $MYSQL_PATH/
+fi
+
+
+if [ ! -h "$MYSQL_PATH/binaries.frm" ]; then
+    cp $MYSQL_PATH/binaries.frm $SQL_BACKUP/
+    mv $MYSQL_PATH/binaries.frm $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/binaries.frm $MYSQL_PATH/
+fi
+if [ ! -h "$MYSQL_PATH/binaries.MYD" ]; then
+    cp $MYSQL_PATH/binaries.MYD $SQL_BACKUP/
+    mv $MYSQL_PATH/binaries.MYD $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/binaries.MYD $MYSQL_PATH/
+fi
+if [ ! -h "$MYSQL_PATH/binaries.MYI" ]; then
+    cp $MYSQL_PATH/binaries.MYI $SQL_BACKUP/
+    mv $MYSQL_PATH/binaries.MYI $PATH_RAMDISK/
+    ln -s $PATH_RAMDISK/binaries.MYI $MYSQL_PATH/
+fi
+
+chown -R $USER:$USER $SQL_BACKUP/
+chown -R mysql:mysql $PATH_RAMDISK
+chown -R mysql:mysql $MYSQL_PATH
+
+/etc/init.d/mysql start
+exit