Hi All I'm trying to set up a backup server with freeNAS. I basically have 1 bigass zpool of about 300TB and datasets/file systems on them for each server. ( XEON skylake W-2102 CPU, 64GB of ram, no L2ARC) The pool consists of 6 vdevs of 8 disks in raidz2 config. The initial copy from windows...

I am getting ready to rebuild my backup FreeNAS server and am trying to figure out the fastest method to copy the data from my primary to my secondary server. I will be re-configuring the second server with 2 vdevs, 6 disks each, in a single pool. I have 10 gig connections between all devices...