方法一：使用MinIO的备份工具

# 下载并安装MinIO mc客户端
wget https://dl.min.io/client/mc/release/linux-amd64/mc
chmod +x mc
sudo mv mc /usr/bin/

# 配置mc以连接到你的MinIO服务器
mc alias set myminio http://<MINIO_SERVER_ADDRESS>:9000 <YOUR_ACCESS_KEY> <YOUR_SECRET_KEY>

# 备份某bucket到其他目录
mc cp -r myminio/mybucket /home/bak

方法二：使用rsync进行备份

mkdir -p /home/scripts
mkdir -p /home/scripts/log/

vim /home/scripts/rsyncd.secrets  #添加服务器的rsync密码，不会的参看我另外一篇rsync文章
chmod 600 /home/scripts/rsyncd.secrets

vim /home/scripts/rsync_backup.sh

#!/bin/bash

# 设置环境变量（关键！）
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# 配置
SOURCE="/home/minio/"
DEST="rsync_user@服务器IP::Minio"
LOGFILE="/home/scripts/log/rsync_cron_$(date +%Y%m%d).log"
LOCKFILE="/home/rsync_backup.lock"
PASSWORDFILE="/home/scripts/rsyncd.secrets"

# 检查是否已有实例在运行（防止重复执行）
if [ -f "$LOCKFILE" ]; then
  echo "[$(date)] ERROR: rsync already running. Exiting." >> "$LOGFILE"
  exit 1
fi

# 创建锁文件
touch "$LOCKFILE"

trap 'rm -f "$LOCKFILE"; exit' INT TERM EXIT

# 执行 rsync
echo "[$(date)] Starting rsync..." >> "$LOGFILE"
/usr/bin/rsync -avhzP --partial --stats --password-file="$PASSWORDFILE"   "$SOURCE" "$DEST" >> "$LOGFILE" 2>&1

# 记录结束时间
echo "[$(date)] rsync finished." >> "$LOGFILE"

chmod +x /home/scripts/rsync_backup.sh

0 2 * * * /home/scripts/rsync_backup.sh >/dev/null 2>&1