scripts/zpool-config/lo-raid10.sh

   1 #!/bin/bash
   2 #
   3 # 4 Device Loopback Raid-0 Configuration
   4 #
   5
   6 FILES_M1="/tmp/zpool-vdev0  \
   7           /tmp/zpool-vdev1"
   8 FILES_M2="/tmp/zpool-vdev2  \
   9           /tmp/zpool-vdev3"
  10 FILES="${FILES_M1} ${FILES_M2}"
  11 DEVICES_M1=""
  12 DEVICES_M2=""
  13
  14 zpool_create() {
  15         for FILE in ${FILES_M1}; 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} -> ${DEVICE} loopback"
  23                 DEVICES_M1="${DEVICES_M1} ${DEVICE}"
  24         done
  25
  26         for FILE in ${FILES_M2}; do
  27                 DEVICE=`unused_loop_device`
  28                 msg "Creating ${FILE} using loopback device ${DEVICE}"
  29                 rm -f ${FILE} || exit 1
  30                 dd if=/dev/zero of=${FILE} bs=1024k count=0 seek=256 \
  31                         &>/dev/null || die "Error $? creating ${FILE}"
  32                 ${LOSETUP} ${DEVICE} ${FILE} ||
  33                         die "Error $? creating ${FILE} -> ${DEVICE} loopback"
  34                 DEVICES_M2="${DEVICES_M2} ${DEVICE}"
  35         done
  36
  37         msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} \
  38                 mirror ${DEVICES_M1} mirror ${DEVICES_M2}
  39         ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} \
  40                 mirror ${DEVICES_M1} mirror ${DEVICES_M2}
  41 }
  42
  43 zpool_destroy() {
  44         msg ${ZPOOL} destroy ${ZPOOL_NAME}
  45         ${ZPOOL} destroy ${ZPOOL_NAME}
  46
  47         for FILE in ${FILES}; do
  48                 DEVICE=`${LOSETUP} -a | grep ${FILE} | head -n1|cut -f1 -d:`
  49                 msg "Removing ${FILE} using loopback device ${DEVICE}"
  50                 ${LOSETUP} -d ${DEVICE} ||
  51                         die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
  52                 rm -f ${FILE} || exit 1
  53         done
  54 }