We’ve decided to go with striped mirrored vdev’s (similar to RAID10) for our ZFS configuration. It gives us the best performance and fault tolerance for what we use the system for. To reproduce our ZFS configuration, you would use all of the commands in the image below (assuming your drives were named the same way ours were) :
We have striped together 9 mirrored Vdev’s (like RAID 10 – 18 drives total) consisting of Western Digital 1TB RE3 SATA drives. Once they were mirrored and striped together, we added a mirrored pair of Intel X25E 32GB SSD drives for the ZIL (ZFS Intent Log) for enhanced write performance. We also added two Intel X25M-G2 160GB SSD drives for the L2ARC (Read) cache. We also added two spare Western Digital 1TB RE3 SATA drives as hot spares.
We believe that this will be the best performing ZFS configuration for our scenarios. We plan to benchmark this configuration and compare it with a few other possible configurations (RAID10 vs RAID50).
If you are curious about what kind of performance to expect from this configuration, check out our initial FileBench benchmarks.
12 Comments to HowTo : Our Zpool configuration
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