scripts/zpool-config/lo-raidz.sh

   1 #!/bin/bash
   2 #
   3 # 4 Device Loopback Raid-0 Configuration
   4 #
   5 FILEDIR=${FILEDIR:-/var/tmp}
   6 FILES=${FILES:-"$FILEDIR/file-vdev0 $FILEDIR/file-vdev1 \
   7     $FILEDIR/file-vdev2 $FILEDIR/file-vdev3"}
   8 DEVICES=""
   9
  10 zpool_create() {
  11         check_loop_utils
  12
  13         for FILE in ${FILES}; do
  14                 DEVICE=`unused_loop_device`
  15                 msg "Creating ${FILE} using loopback device ${DEVICE}"
  16                 rm -f ${FILE} || exit 1
  17                 dd if=/dev/zero of=${FILE} bs=1024k count=0 seek=256 \
  18                         &>/dev/null || die "Error $? creating ${FILE}"
  19                 ${LOSETUP} ${DEVICE} ${FILE} ||
  20                         die "Error $? creating ${FILE} -> ${DEVICE} loopback"
  21                 DEVICES="${DEVICES} ${DEVICE}"
  22         done
  23
  24         msg ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} raidz ${DEVICES}
  25         ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} raidz ${DEVICES} || exit 1
  26 }
  27
  28 zpool_destroy() {
  29         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  30         ${ZPOOL} destroy ${ZPOOL_NAME}
  31
  32         # Delay to ensure device is closed before removing loop device
  33         sleep 1
  34
  35         for FILE in ${FILES}; do
  36                 DEVICE=`${LOSETUP} -a | grep ${FILE} | head -n1|cut -f1 -d:`
  37                 msg "Removing ${FILE} using loopback device ${DEVICE}"
  38                 ${LOSETUP} -d ${DEVICE} ||
  39                         die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
  40                 rm -f ${FILE} || exit 1
  41         done
  42 }