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#!/bin/bash
#
# Four disk Raid-0 DM in a single Raid-0 Configuration
#
PVCREATE=${PVCREATE:-/sbin/pvcreate}
PVREMOVE=${PVREMOVE:-/sbin/pvremove}
PVDEVICES=${PVDEVICES:-"/dev/sd[abcd]"}
VGCREATE=${VGCREATE:-/sbin/vgcreate}
VGREMOVE=${VGREMOVE:-/sbin/vgremove}
VGNAME=${VGNAME:-"vg_tank"}
LVCREATE=${LVCREATE:-/sbin/lvcreate}
LVREMOVE=${LVREMOVE:-/sbin/lvremove}
LVNAME=${LVNAME:-"lv_tank"}
LVSTRIPES=${LVSTRIPES:-4}
LVSIZE=${LVSIZE:-32G}
DEVICES="/dev/${VGNAME}/${LVNAME}"
zpool_dm_destroy() {
msg ${LVREMOVE} -f ${VGNAME}/${LVNAME}
${LVREMOVE} -f ${VGNAME}/${LVNAME} >/dev/null
msg ${VGREMOVE} -f ${VGNAME}
${VGREMOVE} -f ${VGNAME} >/dev/null
msg ${PVREMOVE} ${PVDEVICES}
${PVREMOVE} ${PVDEVICES} >/dev/null
}
zpool_create() {
# Remove EFI labels which cause pvcreate failure
for DEVICE in ${PVDEVICES}; do
dd if=/dev/urandom of=${DEVICE} bs=1k count=32 &>/dev/null
done
msg ${PVCREATE} -f ${PVDEVICES}
${PVCREATE} -f ${PVDEVICES} >/dev/null || exit 1
msg ${VGCREATE} ${VGNAME} ${PVDEVICES}
${VGCREATE} ${VGNAME} ${PVDEVICES} >/dev/null || exit 2
msg ${LVCREATE} --size=${LVSIZE} --stripes=${LVSTRIPES} \
--name=${LVNAME} ${VGNAME}
${LVCREATE} --size=${LVSIZE} --stripes=${LVSTRIPES} \
--name=${LVNAME} ${VGNAME} >/dev/null || exit 3
msg ${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} ${DEVICES}
${ZPOOL} create ${ZPOOL_FLAGS} ${ZPOOL_NAME} \
${DEVICES} || (zpool_dm_destroy && exit 4)
}
zpool_destroy() {
msg ${ZPOOL} destroy ${ZPOOL_NAME}
${ZPOOL} destroy ${ZPOOL_NAME}
zpool_dm_destroy
}
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