mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-26 19:19:32 +03:00
99d3ece847
Allow the caller of the zpool-create.sh script to override the default path where file vdevs are created. This allows for greated flexibilty when scripting. Additionally, update the default path from /tmp/ to /var/tmp/ because these days /tmp/ is likely a ramdisk. Even though these files are sparse they may grow large in which case they should be backed by a physical device. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2120
85 lines
2.7 KiB
Bash
85 lines
2.7 KiB
Bash
#!/bin/bash
|
|
#
|
|
# 4 loopback devices using the md faulty level for easy
|
|
# fault injection on top of which is layered raid10 (mirrored).
|
|
#
|
|
# zpool-vdev0 zpool-vdev1 zpool-vdev2 zpool-vdev3
|
|
# loop0 loop1 loop2 loop3
|
|
# md0 (faulty) md1 (faulty) md2 (faulty) md3 (faulty)
|
|
# <--------------------- raid10 zpool --------------------->
|
|
#
|
|
|
|
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}"
|
|
LODEVICES=""
|
|
MDDEVICES=""
|
|
MDDEVICES_M1=""
|
|
MDDEVICES_M2=""
|
|
|
|
zpool_create() {
|
|
local COUNT=0
|
|
|
|
check_loop_utils
|
|
check_md_utils
|
|
check_md_partitionable || die "Error non-partitionable md devices"
|
|
|
|
for FILE in ${FILES}; do
|
|
LODEVICE=`unused_loop_device`
|
|
MDDEVICE=`unused_md_device`
|
|
let COUNT=${COUNT}+1
|
|
|
|
rm -f ${FILE} || exit 1
|
|
dd if=/dev/zero of=${FILE} bs=1M count=0 seek=256 \
|
|
&>/dev/null || die "Error $? creating ${FILE}"
|
|
|
|
# Setup the loopback device on the file.
|
|
msg "Creating ${LODEVICE} using ${FILE}"
|
|
${LOSETUP} ${LODEVICE} ${FILE} || \
|
|
die "Error $? creating ${LODEVICE} using ${FILE}"
|
|
|
|
LODEVICES="${LODEVICES} ${LODEVICE}"
|
|
|
|
# Setup the md device on the loopback device.
|
|
msg "Creating ${MDDEVICE} using ${LODEVICE}"
|
|
${MDADM} --build ${MDDEVICE} --level=faulty \
|
|
--raid-devices=1 ${LODEVICE} &>/dev/null || \
|
|
(destroy_md_devices "${MDDEVICES}" && \
|
|
destroy_loop_devices "${LODEVICES}" && \
|
|
die "Error $? creating ${MDDEVICE} using ${LODEVICE}")
|
|
wait_udev ${MDDEVICE} 30 || \
|
|
(destroy_md_devices "${MDDEVICES}" && \
|
|
destroy_loop_devices "${LODEVICES}" && \
|
|
die "Error udev never created ${MDDEVICE}")
|
|
|
|
# Create empty GPT/EFI partition table.
|
|
${PARTED} --script ${MDDEVICE} mklabel gpt
|
|
MDDEVICES="${MDDEVICES} ${MDDEVICE}"
|
|
if [ $((COUNT % 2)) -eq 0 ]; then
|
|
MDDEVICES_M2="${MDDEVICES_M2} ${MDDEVICE}"
|
|
else
|
|
MDDEVICES_M1="${MDDEVICES_M1} ${MDDEVICE}"
|
|
fi
|
|
done
|
|
|
|
msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} \
|
|
mirror ${MDDEVICES_M1} mirror ${MDDEVICES_M2}
|
|
${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} \
|
|
mirror ${MDDEVICES_M1} mirror ${MDDEVICES_M2} || \
|
|
(destroy_md_devices "${MDDEVICES}" && \
|
|
destroy_loop_devices "${LODEVICES}" && exit 1)
|
|
|
|
echo "$LODEVICES" >/tmp/zpool-lo.txt
|
|
echo "$MDDEVICES" >/tmp/zpool-md.txt
|
|
}
|
|
|
|
zpool_destroy() {
|
|
msg ${ZPOOL} destroy ${ZPOOL_NAME}
|
|
${ZPOOL} destroy ${ZPOOL_NAME}
|
|
destroy_md_devices "`cat /tmp/zpool-md.txt`"
|
|
destroy_loop_devices "`cat /tmp/zpool-lo.txt`"
|
|
|
|
rm -f /tmp/zpool-md.txt /tmp/zpool-lo.txt
|
|
}
|