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#!/bin/bash
#
# 4 Device Loopback Raid-0 Configuration
#
FILEDIR=${FILEDIR:-/var/tmp}
FILES=${FILES:-"$FILEDIR/file-vdev0 $FILEDIR/file-vdev1 \
$FILEDIR/file-vdev2 $FILEDIR/file-vdev3"}
DEVICES=""
zpool_create() {
check_loop_utils
for FILE in ${FILES}; 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} -> ${DEVICE} loopback"
DEVICES="${DEVICES} ${DEVICE}"
done
msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} raidz ${DEVICES}
${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} raidz ${DEVICES} || exit 1
}
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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