如何将 btrfs 快照发送到多个目标驱动器

Question

如何对多个源目标进行 BTRFS 增量备份，这样我就不必多次运行btrfs send？

btrfs send -p /tmp/parent_subvol /tmp/incremental_backup_snapshot | btrfs receive /mnt/destination_drive1
btrfs send -p /tmp/parent_subvol /tmp/incremental_backup_snapshot | btrfs receive /mnt/destination_drive2

Answer 1

in bash：

btrfs send -p /tmp/parent_subvol /tmp/incremental_backup_snapshot | tee >(btrfs receive /mnt/destination_drive2) | btrfs receive /mnt/destination_drive1

(供参考此回答(