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- Oct 1, 2017
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I am doing a backup of a particular dataset to an external hard drive for off-site backup purposes.
In TrueNAS 13.0 GUI I setup a replication task with the "recursive" checkbox on the particular dataset to backup. For the destination I created a dataset on the external drive pool and selected it as the location. I then ran the replication from the GUI and after many hours it completed successfully.
For visual reasons assume the following:
The dataset I'm backing up is called important and is on the tank pool. The important dataset does have sub-datasets. So tank/important is the source.
External drive pool name is external and the dataset created is called backup. So external/backup is the destination.
After the replication GUI showed SUCCESS of tank/important (with recursive) to external/backup the file space used differs by quite a bit. When I run zfs list -r the externaldrive/backup dataset used column shows 800G whereas the tank/important dataset shows 900G.
Looking at some of the sub datasets they don't match exactly (although some do). I'm really confused on how this could be. Further, when I list the contents of tank/important/.zfs/snapshots it lists many auto@<date> snapshots whereas external/backup/.zfs/snapshots list nothing.
I'm confused. My main goal is to backup the tank/important dataset along with all sub-datasets to an external hard drive, and it seems like most (800G out of 900G) is there but really weird that it doesn't match 900G but maybe that isn't weird?? Any help out there?
In TrueNAS 13.0 GUI I setup a replication task with the "recursive" checkbox on the particular dataset to backup. For the destination I created a dataset on the external drive pool and selected it as the location. I then ran the replication from the GUI and after many hours it completed successfully.
For visual reasons assume the following:
The dataset I'm backing up is called important and is on the tank pool. The important dataset does have sub-datasets. So tank/important is the source.
External drive pool name is external and the dataset created is called backup. So external/backup is the destination.
After the replication GUI showed SUCCESS of tank/important (with recursive) to external/backup the file space used differs by quite a bit. When I run zfs list -r the externaldrive/backup dataset used column shows 800G whereas the tank/important dataset shows 900G.
Looking at some of the sub datasets they don't match exactly (although some do). I'm really confused on how this could be. Further, when I list the contents of tank/important/.zfs/snapshots it lists many auto@<date> snapshots whereas external/backup/.zfs/snapshots list nothing.
I'm confused. My main goal is to backup the tank/important dataset along with all sub-datasets to an external hard drive, and it seems like most (800G out of 900G) is there but really weird that it doesn't match 900G but maybe that isn't weird?? Any help out there?