scripts/zpool-config/lo-raidz.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         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 ${FORCE_FLAG} ${ZPOOL_NAME} raidz ${DEVICES}
  25         ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} raidz ${DEVICES} || exit 1
  26 }
  27
  28 zpool_destroy() {
  29         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  30         ${ZPOOL} destroy ${ZPOOL_NAME}
  31
  32         for FILE in ${FILES}; do
  33                 DEVICE=`${LOSETUP} -a | grep ${FILE} | head -n1|cut -f1 -d:`
  34                 msg "Removing ${FILE} using loopback device ${DEVICE}"
  35                 ${LOSETUP} -d ${DEVICE} ||
  36                         die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
  37                 rm -f ${FILE} || exit 1
  38         done
  39 }