I'm building a proxmox server and looking for a recommendation on raid solution. CPU is i7-3770K. I've decided to go with two 512 GB SSDs raid 1 for boot and VMs and two 4 TB Toshiba N300s RAID 1 for data. I will be running two Win Server 19 VMs with one being a SQL server. I'd like to give as much ram to the SQL box as possible. Question is should I use mdadm for the software raid to save ram or go with zfs?