to backup my data on an external disk I used:
# zfs snapshot -r internal_pool@backup
# zfs send -R internal_pool@backup | zfs receive -vF external_pool
the second command finished after some hours with the following message:
cannot mount 'external_pool': mountpoint or dataset is busy
looking at the sizes of the data imported it seems that the backup is slightly smaller than the original data. What went wrong? How to recover?
# zfs snapshot -r internal_pool@backup
# zfs send -R internal_pool@backup | zfs receive -vF external_pool
the second command finished after some hours with the following message:
cannot mount 'external_pool': mountpoint or dataset is busy
looking at the sizes of the data imported it seems that the backup is slightly smaller than the original data. What went wrong? How to recover?