Offline Backup

[Jacopx]

Buongiorno,
i have 2 pool, one RAIZ-Z2 and one MIRRORED, in the first pool i have around 500TB that i want to backup offline and from the second one all data that are around 3TB... The amount of data to backup around 4TB.

My answer: (I have an unused drive of 4TB)
1) Which is the best way to do the backup?
2) How can i made the backup of only some dataset?

I have try sending to the offline drive my snapshot just made, is working and it's fast but i can't made an incremental backup, i need to replace everything... Someone have a better idea? :)

 

[Robert Smith]

The best way to connect the backup drive is via SATA or eSATA.

Check the following thread on how to replicate with incremental snapshots.
https://forums.freenas.org/index.php?threads/zfs-send-to-external-backup-drive.17850/

 

[Robert Smith]

Only one one dataset is backed up by default, unless you use recursive options on both snapshots and replication.

In latter case, child datasets are included.

 

[MtK]

Buongiorno,
i have 2 pool, one RAIZ-Z2 and one MIRRORED, in the first pool i have around 500TB that i want to backup offline and from the second one all data that are around 3TB... The amount of data to backup around 4TB.

My answer: (I have an unused drive of 4TB)
1) Which is the best way to do the backup?
2) How can i made the backup of only some dataset?

I have try sending to the offline drive my snapshot just made, is working and it's fast but i can't made an incremental backup, i need to replace everything... Someone have a better idea? :)

You do mean 500Gb, right?
Other the unused 4Tb disk won't help much for backing up 500Tb...

(And I assume those are your questions not you answer)

 

[Jacopx]

You do mean 500Gb, right?
Other the unused 4Tb disk won't help much for backing up 500Tb...

(And I assume those are your questions not you answer)

Yes, of course, sorry!

 

[Jacopx]

The best way to connect the backup drive is via SATA or eSATA.

Check the following thread on how to replicate with incremental snapshots.
https://forums.freenas.org/index.php?threads/zfs-send-to-external-backup-drive.17850/

I'm going to look, but my problem is not related to the connection type (I can use one of my free hotswap unit), is related to the software side! [emoji1303]

 

[nojohnny101]

if i am understanding you correctly and what you want to to do, @Robert Smith has the simplest method for accomplishing what you want, snapshots and replication.

Just install the 4tb spare drive internally, create a new zpool with a single vdev that contains a single dataset, setup a periodic snapshot of the dataset you want to "backup" (choose if you want it recursive) and then create a replication task that is "push" from the dataset you want to backup to the "pull" of the 4tb drive.

 

[Jacopx]

if i am understanding you correctly and what you want to to do, @Robert Smith has the simplest method for accomplishing what you want, snapshots and replication.

Just install the 4tb spare drive internally, create a new zpool with a single vdev that contains a single dataset, setup a periodic snapshot of the dataset you want to "backup" (choose if you want it recursive) and then create a replication task that is "push" from the dataset you want to backup to the "pull" of the 4tb drive.

I have read the guide, thanks a lot! Is what I need [emoji6]