Last active
October 5, 2019 05:00
-
-
Save fuyuanli/d6b5d626c0bff4b32a2836450aaff58d to your computer and use it in GitHub Desktop.
ZFS 自動快照
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
# 目標 Dataset | |
DATASET="data/home" | |
# 要保留的 Snapshot 數量 | |
SNAP_NUM=168 | |
# 日期 | |
TODAY=$(date +"%Y-%m-%d-%H%M%S") | |
# 進行 snapshot | |
/usr/sbin/zfs snapshot $DATASET@zfs-auto-snap_$TODAY | |
# 刪除快照超過 $SNAP_NUM 數量的舊快照,並把結果丟進 $DESTROY | |
DESTROY_LOG="$(/usr/sbin/zfs list -t snapshot -o name -S creation | /usr/bin/grep @zfs-auto-snap | /usr/bin/tail -n +$(($SNAP_NUM+1)) | /usr/bin/xargs -n 1 /usr/sbin/zfs destroy -vr )" | |
echo $DESTROY_LOG | |
if [ -z "$DESTROY_LOG" ]; then | |
DESTROY_LOG="The Snapshots of $DATASET are less then $SNAP_NUM, so it will not run the destroy command." | |
/usr/bin/logger -i -t "zfs-autosnap.sh" -p user.notice $DESTROY_LOG | |
else | |
/usr/bin/logger -i -t "zfs-autosnap.sh" -p user.notice $DESTROY_LOG | |
fi |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment