ZFS on Linux w/ KVM .....hard drive utilization advice.

[Klee]

Setup :
Motherboard: Asrock Rack EP2C602-4L/D16
Ram: 64 Gb of Hynix DDR3
Cpu's: Two Xeon E5-2620 V1, not speed demons but they only cost me $3.25 for the pair plus shipping.
128 Gb SSD for a os disk.
Ubuntu 16.04.02
With KVM, just maybe 6 or 7 vm's and maybe only running three or four at a time basically what ever I feel like doing at the time.

This is not any sort of mission critical server, just a learning computer.

Now I currently have six unused hard drives:
3 WD Black 1 TB
3 HSGT 2 TB

All are used but show zero issues after testing.

What setup can I use to get the highest speed out of those hard drives for vm's?

Repeat Not Mission Critical!!

 

[pricklypunter]

If purely for speed, I would go 2x stripes, one of 2TB & one of 4TB plus two single disk vdev's. There is however, zero redundancy in that, so any disk fails you lose the data in that vdev. If you need some capacity and some redundancy, without too much of a penalty, then two raidz5's. I wouldn't mix them in the same vdev though