Reduce Number of Drives in RAID-Z2

[Mitch0]

I currently have 5 drives set up in Z2, and of the usable space I am only using 18%.

One of the drives has failed. Rather than replacing this I am wondering if I can reduce the number of drives in the volume so I still have 2 redundant drives but reduce the usable space by 1/3.

Is this possible in FreeNAS?

 

[gpsguy]

Nope. You'd need to backup your data, delete the volume and do a fresh start with the 4 disks in RAIDz2.

 

[jgreco]

https://forums.freenas.org/index.ph...ning-vdev-zpool-zil-and-l2arc-for-noobs.7775/

 

[Mitch0]

Thanks for the replies - I didn't realise the number of disks was so rigid.

I will stick with the 5 so it remains future proof and to avoid having to start again.