Backup single pool on a two disk stripe to third disk, same machine, then recreate to raidz, restore 3rd

[alleykat]

I have a TrueNAS 12 with only a two 4Tb disk stripe (8Tb). This stripe only has a single pool of about 2.21Tb. I want to use replication of this pool to a 3rd drive added, not on the 2 disk stripe system.
Remove the 3rd "backup" drive with the replicated pool from the machine. Add another new 4Tb drive to the machine, create a new vdev on the "new" 3 drives and create a raidz1. Then add replicated "backup" drive as disk 4, and replicate the pool to the raidz1. Is this possible this way? Or is there an easier path.

 

[Dan Tudora]

hello
is a 2 (two) step to do that
1. https://www.truenas.com/community/resources/how-to-backup-to-local-disks.26/
2. after that create a pool like in https://www.truenas.com/community/resources/creating-a-degraded-pool.100/
be carefully YOUR data is in danger if something go wrong

 

[alleykat]

hello
is a 2 (two) step to do that
1. https://www.truenas.com/community/resources/how-to-backup-to-local-disks.26/
2. after that create a pool like in https://www.truenas.com/community/resources/creating-a-degraded-pool.100/
be carefully YOUR data is in danger if something go wrong

I'll read up on that. Thanks for the reply!

 

[Dan Tudora]

hello
anyway a RAIDZ1 pool with HDD 4 TB OR more IS not optimal
in @Chris Moore good practice list is a thing that say in https://www.zdnet.com/article/why-raid-5-stops-working-in-2009/
maybe you read and you change your mind about RAIDZ1
or maybe not