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#!/bin/bash
#
# 4 Device Loopback Raid-0 Configuration
#
FILEDIR=${FILEDIR:-/var/tmp}
FILES_M1=${FILES_M1:-"$FILEDIR/file-vdev0 $FILEDIR/file-vdev1"}
FILES_M2=${FILES_M2:-"$FILEDIR/file-vdev2 $FILEDIR/file-vdev3"}
FILES="${FILES_M1} ${FILES_M2}"
DEVICES_M1=""
DEVICES_M2=""
zpool_create() {
check_loop_utils
for FILE in ${FILES_M1}; do
DEVICE=`unused_loop_device`
msg "Creating ${FILE} using loopback device ${DEVICE}"
rm -f ${FILE} || exit 1
dd if=/dev/zero of=${FILE} bs=1024k count=0 seek=256 \
&>/dev/null || die "Error $? creating ${FILE}"
${LOSETUP} ${DEVICE} ${FILE} ||
die "Error $? creating ${FILE} -> ${DEVICE} loopback"
DEVICES_M1="${DEVICES_M1} ${DEVICE}"
done
for FILE in ${FILES_M2}; do
DEVICE=`unused_loop_device`
msg "Creating ${FILE} using loopback device ${DEVICE}"
rm -f ${FILE} || exit 1
dd if=/dev/zero of=${FILE} bs=1024k count=0 seek=256 \
&>/dev/null || die "Error $? creating ${FILE}"
${LOSETUP} ${DEVICE} ${FILE} ||
die "Error $? creating ${FILE} -> ${DEVICE} loopback"
DEVICES_M2="${DEVICES_M2} ${DEVICE}"
done
msg ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} \
mirror ${DEVICES_M1} mirror ${DEVICES_M2}
${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} \
mirror ${DEVICES_M1} mirror ${DEVICES_M2}
}
zpool_destroy() {
msg ${ZPOOL} destroy ${ZPOOL_NAME}
${ZPOOL} destroy ${ZPOOL_NAME}
# Delay to ensure device is closed before removing loop device
sleep 1
for FILE in ${FILES}; do
DEVICE=`${LOSETUP} -a | grep ${FILE} | head -n1|cut -f1 -d:`
msg "Removing ${FILE} using loopback device ${DEVICE}"
${LOSETUP} -d ${DEVICE} ||
die "Error $? destroying ${FILE} -> ${DEVICE} loopback"
rm -f ${FILE} || exit 1
done
}
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