scripts/zpool-config/lo-raid0.sh

   1 #!/bin/bash
   2 #
   3 # 4 Device Loopback Raid-0 Configuration
   4 #
   5
   6 FILES="/tmp/zpool-vdev0  \
   7        /tmp/zpool-vdev1  \
   8        /tmp/zpool-vdev2  \
   9        /tmp/zpool-vdev3"
  10 DEVICES=""
  11
  12 zpool_create() {
  13         check_loop_utils
  14
  15         for FILE in ${FILES}; do
  16                 DEVICE=`unused_loop_device`
  17                 msg "Creating ${FILE} using loopback device ${DEVICE}"
  18                 rm -f ${FILE} || exit 1
  19                 dd if=/dev/zero of=${FILE} bs=1024k count=0 seek=256 \
  20                         &>/dev/null || die "Error $? creating ${FILE}"
  21                 ${LOSETUP} ${DEVICE} ${FILE} ||
  22                         die "Error $? creating ${FILE} -> ${DEVICE} loopback"
  23                 DEVICES="${DEVICES} ${DEVICE}"
  24         done
  25
  26         msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES}
  27         ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES} || exit 1
  28 }
  29
  30 zpool_destroy() {
  31         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  32         ${ZPOOL} destroy ${ZPOOL_NAME}
  33
  34         # Delay to ensure device is closed before removing loop device
  35         sleep 1
  36
  37         for FILE in ${FILES}; do
  38                 DEVICE=`${LOSETUP} -a | grep ${FILE} | head -n1|cut -f1 -d:`
  39                 msg "Removing ${FILE} using loopback device ${DEVICE}"
  40                 ${LOSETUP} -d ${DEVICE} ||
  41                         die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
  42                 rm -f ${FILE} || exit 1
  43         done
  44 }