Christian Rotzoll
6 years ago
committed by
GitHub
GitHub
6 changed files with 167 additions and 5 deletions
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#!/bin/bash |
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# command info |
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if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then |
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echo "managing additional data storage" |
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echo "blitz.datadrive.sh [on|off]" |
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echo "exits on 0 = needs reboot" |
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exit 1 |
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fi |
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# check if sudo |
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if [ "$EUID" -ne 0 ] |
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then echo "Please run as root (with sudo)" |
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exit 1 |
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fi |
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# update install sources |
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echo "make sure BTRFS is installed ..." |
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sudo apt-get install -y btrfs-tools |
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echo "" |
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# check on/off state |
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dataStorageNotAvailableYet=$(sudo btrfs filesystem df /mnt/data 2>&1 | grep -c "ERROR: not a btrfs filesystem") |
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if [ "$1" = "1" ] || [ "$1" = "on" ]; then |
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echo "Trying to switch additional data storage on ..." |
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if [ ${dataStorageNotAvailableYet} -eq 0 ]; then |
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echo "FAIL -> data storage is already on" |
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exit 1 |
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fi |
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elif [ "$1" = "0" ] || [ "$1" = "off" ]; then |
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echo "Trying to switch additional data storage off ..." |
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if [ ${dataStorageNotAvailableYet} -eq 1 ]; then |
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echo "FAIL -> data storage is already off" |
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exit 1 |
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fi |
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else |
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echo "FAIL -> Parameter '${$1}' not known." |
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exit 1 |
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fi |
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################### |
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# SWITCH ON |
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################### |
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if [ "$1" = "1" ] || [ "$1" = "on" ]; then |
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# detect the two usb drives |
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echo "Detecting two USB sticks/drives with same size ..." |
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lsblk -o NAME | grep "^sd" | while read -r test1 ; do |
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size1=$(lsblk -o NAME,SIZE -b | grep "^${test1}" | awk '$1=$1' | cut -d " " -f 2) |
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echo "Checking : ${test1} size(${size1})" |
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lsblk -o NAME | grep "^sd" | grep -v "${test1}" | while read -r test2 ; do |
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size2=$(lsblk -o NAME,SIZE -b | grep "^${test2}" | awk '$1=$1' | cut -d " " -f 2) |
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if [ "${size1}" = "${size2}" ]; then |
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echo " MATCHING ${test2} size(${size2})" |
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echo "${test1}" > .dev1.tmp |
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echo "${test2}" > .dev2.tmp |
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else |
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echo " different ${test2} size(${size2})" |
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fi |
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done |
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done |
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dev1=$(cat .dev1.tmp) |
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dev2=$(cat .dev2.tmp) |
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rm -f .dev1.tmp |
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rm -f .dev2.tmp |
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echo "RESULTS:" |
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echo "dev1(${dev1})" |
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echo "dev2(${dev2})" |
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echo "" |
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# check that results are available |
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if [ ${#dev1} -eq 0 ] || [ ${#dev2} -eq 0 ]; then |
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echo "!! FAIL -> was not able to detect two devices with the same size" |
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exit 1 |
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fi |
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# check size (at least 4GB minus some tolerance) |
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size=$(lsblk -o NAME,SIZE -b | grep "^${dev1}" | awk '$1=$1' | cut -d " " -f 2) |
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if [ ${size} -lt 3500000000 ]; then |
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echo "!! FAIL -> too small - additional storage needs to be bigger than 4GB" |
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exit 1 |
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fi |
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# check if devices are containing old data |
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echo "Analysing Drives ..." |
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nameDev1=$(lsblk -o NAME,LABEL | grep "^${dev1}" | awk '$1=$1' | cut -d " " -f 2) |
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nameDev2=$(lsblk -o NAME,LABEL | grep "^${dev2}" | awk '$1=$1' | cut -d " " -f 2) |
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if [ "${nameDev1}" = "DATASTORE" ] || [ "${nameDev2}" = "DATASTORE" ]; then |
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# TODO: once implemented -> also make sure that dev1 is named "DATASTORE" and if 2nd is other -> format and add as raid |
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echo "!! NOT IMPLEMENTED YET -> devices seem contain old data, because name is 'DATASTORE'" |
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echo "if you dont care about that data: format devices devices on other computer with FAT(32) named TEST" |
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exit 1 |
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fi |
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echo "OK drives dont contain old data." |
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echo "" |
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# format first drive |
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echo "Formatting /dev/${dev1} with BTRFS ..." |
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sudo mkfs.btrfs -L DATASTORE -f /dev/${dev1} |
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echo "OK" |
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echo "" |
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# mount the BTRFS drive |
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echo "Mounting under /mnt/data ..." |
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sudo mkdir -p /mnt/data |
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sudo mount /dev/${dev1} /mnt/data |
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echo "OK" |
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echo "" |
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# adding the second device |
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echo "Adding the second device as RAID1 .." |
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sudo btrfs device add -f /dev/${dev2} /mnt/data |
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sudo btrfs filesystem balance start -dconvert=raid1 -mconvert=raid1 /mnt/data |
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echo "" |
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exit 0 |
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# adding the second device |
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uuid=$(sudo btrfs filesystem show /mnt/data | grep "uuid:" | awk '$1=$1' | cut -d " " -f 4) |
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fi |
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################### |
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# SWITCH OFF |
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################### |
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if [ "$1" = "0" ] || [ "$1" = "off" ]; then |
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echo "TODO -> Turn off" |
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sudo btrfs filesystem show /mnt/data |
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sudo btrfs filesystem df /mnt/data |
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sudo umount /mnt/data |
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exit 0 |
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fi |
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