Want to transfer data from one hard drive to another in same FreeNAS machine

[DhavalKhairnar]

I have install 9.10 stable FreeNAAS installed. Now I have 2TB drive which is already full with data in FreeNAS machine. I want to add 4TB hard disk and want whole data of 2TB to be copied in 4TB with same data arranged and other stuff which is already in 2TB. Suggest me step wise How to do?

 

[bigphil]

Easy to do via internal replication. zfs send | zfs recv are the commands you need. That isn't the exact command, but a quick search will show you how to do it.

 

[DhavalKhairnar]

Can anyone pls guide me exactly, so that I will not loose my valuable data?

 

[nojohnny101]

I suspect something bad about your setup. How are you exactly adding this 4TB drive to your system? You realize that once you create a vdev, you can not add/remove drives to it (exception of mirrors). Are you adding the new 4TB drive as a mirror or a separate pool?

here is the relevant information you asked for:
https://docs.oracle.com/cd/E18752_01/html/819-5461/gbchx.html

 

[SweetAndLow]

Just copy the data on the command line. It's the fastest way, rsync is another option if you want to be able to restart it.

Sent from my Nexus 5X using Tapatalk

 

[bigphil]

Create a snapshot of your data you'd like to backup, i.e. snap1, and then just send it to your other pool and dataset. You may need to use the -F option on the recv side if you get an error: cannot receive: destination has been modified since most recent snapshot.

zfs send fromPool/myDataset@snap1 | zfs recv toPool/newDataset