commit 741745cffa3b6554999150ff0928a5c663428638 parent 5a66b1b1dc5a67ce39bff08b2da87d85c12469ef Author: Christos Margiolis <christos@margiolis.net> Date: Sun, 3 Apr 2022 22:12:43 +0300 s/drive/pool/ Diffstat:
| M | backup | | | 26 | +++++++++++++------------- |
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/backup b/backup @@ -6,10 +6,10 @@ usage() exit 1 } -drive_exists() +pool_exists() { local foo=$(zpool list | sed 1d | awk '{print $1}' | grep -x "${1}") - test -z "${foo}" && echo "${0##*/}: drive ${1} does not exist" && exit 1 + test -z "${foo}" && echo "${0##*/}: pool ${1} does not exist" && exit 1 } f_incr=0 @@ -24,26 +24,26 @@ shift $((OPTIND - 1)) test ${#} -ne 2 && usage -from_drv="${1}" -to_drv="${2}" +src_pool="${1}" +dst_pool="${2}" -drive_exists "${from_drv}" -drive_exists "${to_drv}" +pool_exists "${src_pool}" +pool_exists "${dst_pool}" new_snap="$(date +%Y%m%d)" -last_snap="$(zfs list -t snapshot -o name ${to_drv} | cut -f2 -d'@' | tail -1)" -nsnaps=$(zfs list -t snapshot -o name ${to_drv} | sed 1d | wc -l) +last_snap="$(zfs list -t snapshot -o name ${dst_pool} | cut -f2 -d'@' | tail -1)" +nsnaps=$(zfs list -t snapshot -o name ${dst_pool} | sed 1d | wc -l) # make sure we don't have a snapshot already # also don't delete in case there's only one snap, otherwise we'll lose it all if [ ! ${nsnaps} -le 1 ] && [ "${last_snap}" = "${new_snap}" ]; then - zfs destroy -r ${to_drv}@${new_snap} + zfs destroy -r ${dst_pool}@${new_snap} fi # create new snapshot in case we had made one already today -zfs destroy -r ${from_drv}@${new_snap} -zfs snapshot -r ${from_drv}@${new_snap} +zfs destroy -r ${src_pool}@${new_snap} +zfs snapshot -r ${src_pool}@${new_snap} if [ ${f_incr} -eq 1 ]; then - zfs send -RI ${from_drv}@${last_snap} ${from_drv}@${new_snap} | pv | zfs recv -Fu ${to_drv} + zfs send -RI ${src_pool}@${last_snap} ${src_pool}@${new_snap} | pv | zfs recv -Fu ${dst_pool} else - zfs send -R ${from_drv}@${new_snap} | pv | zfs recv -Fu ${to_drv} + zfs send -R ${src_pool}@${new_snap} | pv | zfs recv -Fu ${dst_pool} fi