Centre Blaise Pascal » gZFS

#!/bin/bash

# $Id: create-volume 41 2013-10-09 08:44:10Z kreverch $

function usage {

echo "Syntax :" 1>&2

echo "$0 [options]" 1>&2

echo " -n : volume name" 1>&2

echo " -p : pool name" 1>&2

echo " -b : block size. Permit value : 32K, 64K, 128K (recommanded)" 1>&2

echo " -s : volume size. Permit unit : T, G, M"  1>&2

# FIXME: c'est pas clair ta formulation

echo " -o : set property list for a  zfs volume. Separate such property by a ','." 1>&2

echo "      Example : -o compression=off,snapdev=visble." 1>&2

echo "      Read the man zfs to get the list of the valid properties" 1>&2

echo " -i : interactive mode" 1>&2

}

function nointeractive {

if [[ -z $VOL_OPTION ]]

then

/sbin/zfs create -s -b $BLOCK_SIZE -V $SIZE $NAME_POOL/$NAME

else

/sbin/zfs create -s -b $BLOCK_SIZE -o $VOL_OPTION -V $SIZE $NAME_POOL/$NAME

fi

}

function interactive {

zfs list

# FIXME: c'est pas clair ta formulation

echo "*** Choose a pool for the ZFS volume to create: ***"

while read inputline

do

   if [ "$inputline" != "" ]

   then

      zfs list |grep -i $inputline

      if [ $? -eq 1 ]

      then

# FIXME: c'est pas clair ta formulation

         echo "*** Choose a pool for the ZFS volume to create: ***"

      else

         echo "*** Are you sure: $inputline ? (y/n) ***"

         while read inputConfirm

         do

            if [ "$inputConfirm" = "y" ]||[ "$inputConfirm" = "n" ]

            then

              break

            fi

            echo "*** Are you sure: $inputline ? (y/n) ***"

          done

          if [ "$inputConfirm" = "y" ]

          then

             NAME_POOL=$inputline

             echo "volume name: "

             while read inputVolume

             do

                if [ "$inputVolume" != "" ]

                then

                   test -d /dev/zvol

                   if [ $? -eq 0 ]

                   then

                      ls -l /dev/zvol/$NAME_POOL/$inputVolume

                      if [ $? -eq 0 ]

                      then

                         echo "volume name already exists"

                         VOL_OK=1   

                      else

                         VOL_OK=0

                      fi

                   else

                      VOL_OK=0 

                   fi

                   if [ $VOL_OK -eq 1 ]

                   then

                      echo "volume name: "

                   else

                      NAME_VOL=$inputVolume

                      echo "volume size (Unit in T|G|M): "

                      while read inputSize

                      do

                         if [ "$inputSize" != "" ]

                         then

                           zfs create -s -b 128K -V $inputSize  $NAME_POOL/$inputVolume

                           if [ $? -eq 0 ]

                           then

                              echo "*** ZFS volume creation [OK] ***" 

                              zfs list

                              break

                           else

                              echo "/!\\ ZFS volume creation [ERROR] /!\\"

                           fi

                        else

                           echo "volume size (Unit in T|G|M): "   

                        fi

                      done

                      break

                    fi

                else

                  echo "volume name: "

                fi

             done

             break

          fi

          break

      fi

   else

# FIXME: c'est pas clair ta formulation

      echo "*** Choose a pool for the ZFS volume to create: ***"

   fi

done

}

while getopts "in:p:b:s:o:h" OPTION

do

     case $OPTION in

         h)

             usage

             exit 1

             ;;

         i)

            interactive

            exit 0

            ;;

         n)

           NAME=$OPTARG

           ;;

         p)

           NAME_POOL=$OPTARG

           ;;

         b)

           BLOCK_SIZE=$OPTARG

           ;;

         s)

           SIZE=$OPTARG

           ;;

         o)

           VOL_OPTION=$OPTARG

           VOL_OPTION=$(echo $VOL_OPTION|sed -e 's/,/ -o /g')

           echo "$VOL_OPTION"

           ;;

         *)

          usage

          exit 1

          ;;

    esac

done

if [[ -z $NAME ]] || [[ -z $NAME_POOL ]] || [[ -z $BLOCK_SIZE ]] || [[ -z $SIZE ]]

then

     usage

     exit 1

fi

nointeractive