Add HDDs to raidz1

[Charlie86]

Hi,

Currently my freenas box have 5x3TB in raidz1 configuration. I just added two more 3TBs.

Is it possible just to add them to existing pool or must I build new pool and migrate data to external drives?

Thanks.

 

[Basil Hendroff]

You have two choices - Rebuild the vdev to include 7 disks or add a second vdev (strongly recommend 3TB mirrored for redundancy) to the pool. If you must stay with RAIDZ1, the former will give you an additional 6TB; the latter 3TB.

 

[Basil Hendroff]

To understand the differences, I suggest you review https://forums.freenas.org/index.ph...ning-vdev-zpool-zil-and-l2arc-for-noobs.7775/

 

[Charlie86]

Thanks, will read documentation :)