Which would be better 3-mirror stripe or 6 in RaidZ3

[2twisty]

Just like the title says:

If I have 6 disks, which would be better for redundancy and performance?

3x 2-drive mirrors in stripe
1 6-drive in RaidZ3?

This is mostly a hypothetical question, because I'm not considering this, but the question ran through my mind.

 

[Etorix]

3x 2-drive mirrors in stripe

Performance: IOPS of 2 drives.

1 6-drive in RaidZ3

IOPS of one drive. Can lose any two or even any three drives, so better resiliency.

 

[2twisty]

OK, so its going to depend on the use case. Most of what I have here is just a homelab that serves video files to Kodi, and a few VMs running on a separate XCP-NG box over NFS.

If I were in an enterprise situation, I'd probably go with the mirrors for VMs, and have a couple cold spares. But since this is a homelab, I'd probably take the performance hit (since my VMs don't generate a lot of IOPs)

Thanks for the info.

 

[tsm37]

I have 7 x 14 TBs and settled with 3 x 2 mirrors + 1 hotspare. After resesrch and speaking with folks, I feel this works best for me to have performance and a comfort level of resiliency