Storage upgrade from mirrorz

[max3892]

Hello freenas user,

I plan to migrate my nas from openindiana to freenas or freebsd.

I have currently a single pool of 4TB composed of 2 mirror vdevs (with 2TB seagate disks).

One of the disk has some reallocated sector, so I need to change it. Moreover, I would like to add some space to my pool, by adding a new mirror with two 3TB WD green disks. A third 3TB WD will take also replace the faulty disk.

Is it a good idea? Or should I really move to raidz2?

 

[dlavigne]

Which solution did you end up with?

 

[max3892]

1 month later :)

Still not migrated, I have finally all the disks for the full migration... I think I will destroy and start with a raidz2 with mixed 2 and 3TB drives