Pool reconfiguration useing temp USB drives

[9C1 Newbee]

My goal is to reconfigure my 6x 3TB z2 into a 10x 3TB z2 pool.

However, before I can do that I need to move the data out of the pool. The current (6x 3TB) pool is 77% full. That works out to about 8TB of data.

My question is, can I create a 6x 3TB pool using USB drives to temporarily hold the data?

Or is there a better way?

 

[9C1 Newbee]

 

[ser_rhaegar]

USB drives are high risk for disaster. Not recommended.

 

[solarisguy]

A different scenario to consider.

Create two mirrored pools 2x 3TB in each or one RAID-Z2 pool with 4x 3TB. Mount them or it in the existing pool using nullfs
http://www.freebsd.org/cgi/man.cgi?query=mount_nullfs
http://www.freebsd.org/cgi/man.cgi?query=nullfs

 

[9C1 Newbee]

Thank you, guys.

Looks like I need to read up on nullfs.

 

[cyberjock]

Yeah.. don't do nullfs with FreeNAS. You'll be sorry. ;)

Like what has been said in the forums about a bajillion times... if you can't do it in the WebGUI you probably shouldn't be doing it...

 

[9C1 Newbee]

I wouldn't attempt it anyway. I researched a bit about it and really don't have a grasp about what it does and how it would help me attain my goal. A good bit above my skill set.