formatting BTRFS

home.admin/config.scripts/blitz.datadrive.sh

@@ -19,6 +19,31 @@ echo "make sure BTRFS is installed ..."
 sudo apt-get install -y btrfs-tools
 echo ""
 
+# check on/off state
+dataStorageNotAvailableYet=$(sudo btrfs filesystem df /mnt/data 2>&1 | grep -c "ERROR: not a btrfs filesystem")
+if [ "$1" = "1" ] || [ "$1" = "on" ]; then
+  echo "Trying to switch additional data storage on ..."
+  if [ ${dataStorageNotAvailableYet} -eq 0 ]; then
+    echo "FAIL -> data storage is already on"
+    exit 1
+  fi
+elif [ "$1" = "0" ] || [ "$1" = "off" ]; then
+  echo "Trying to switch additional data storage off ..."
+  if [ ${dataStorageNotAvailableYet} -eq 1 ]; then
+    echo "FAIL -> data storage is already off"
+    exit 1
+  fi
+else
+  echo "FAIL -> Parameter '${$1}' not known."
+  exit 1
+fi
+
+###################
+# SWITCH ON
+###################
+
+if [ "$1" = "1" ] || [ "$1" = "on" ]; then
+
   # detect the two usb drives
   echo "Detecting two USB sticks/drives with same size ..."
   lsblk -o NAME | grep "^sd" | while read -r test1 ; do
@@ -70,23 +95,43 @@ fi
   echo "OK drives dont contain old data."
   echo ""
 
+  # format first drive
+  echo "Formatting /dev/${dev1} with BTRFS ..."
+  sudo mkfs.btrfs -L DATASTORE -f /dev/${dev1}
+  echo "OK"
+  echo ""
+
+  # mount the BTRFS drive
+  echo "Mounting under /mnt/data ..."
+  sudo mkdir -p /mnt/data
+  sudo mount /dev/sdb1 /mnt/data
+  echo "OK"
+  echo ""
+
+  # adding the second device
+  echo "Adding the second device as RAID1 .."
+  sudo btrfs device add -f /dev/sdc /mnt/data
+  sudo btrfs filesystem balance start -dconvert=raid1 -mconvert=raid1 /mnt/data
+  echo ""
   exit 0
 
+  #uuid=$(lsblk -o NAME,UUID | grep "^${dev1}" | awk '$1=$1' | cut -d " " -f 2)
 
-lsblk -o UUID,NAME,FSTYPE,SIZE,LABEL,MODEL | greap "^sd"
-# TODO: find the drives
+fi
 
+###################
+# SWITCH OFF
+###################
 
-# TODO: DETECT if they is already data
-lsblk -o UUID,NAME,FSTYPE,SIZE,LABEL,MODEL 
+if [ "$1" = "0" ] || [ "$1" = "off" ]; then
 
-# check if there is already data on there
+  echo "TODO -> Turn off"
 
-# create 
-sudo mkfs.btrfs -L DATASTORE -f /dev/sdb
-sudo mkdir -p /mnt/data
-sudo mount /dev/sdb1 /mnt/data
   sudo btrfs filesystem show /mnt/data
-sudo btrfs device add -f /dev/sdc /mnt/data
   sudo btrfs filesystem df /mnt/data
-sudo btrfs filesystem balance start -dconvert=raid1 -mconvert=raid1 /mnt/data
+  
+  sudo umount /mnt/data
+
+  exit 0
+
+fi