extend mirror

[alex992]

Can I extend Mirror pool same way as RaidZ by replacing to bigger HD's?

 

[gpsguy]

Yes, see the section on replacing disks to grow a pool - http://doc.freenas.org/11/storage.html#replacing-drives-to-grow-a-zfs-pool

this will expand the pool. Typically, extending, implies that you are adding another additional vdev's.

 

[M H]

Yes, I've done it twice now. Works well. Just make sure autoexpand flag is set on the pool.

 

[Stux]

But have you considered adding an additional pair of drivers to extend your pool instead?