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New ZFS Build - Low IOPS

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Took one of our ZFS boxes down (8x RAIDZ3) and aimed to improve performance by upping the RAM from 16GB to 32GB and creating a RAID 1+0 array instead.

It has the following spec:
  • Xeon 1220L V2
  • 32GB ECC DDR3 RAM
  • Intel S3700 100GB SLOG
  • 8x Western Digital Velociraptors in stripe across 4x mirrors
  • LSI 9211-8i in IT mode
  • Supermicro SAS836EL1 backplane (supports a max of 1.5Gbps per SATA port)

Running IOMeter I'm getting approximately 100-150 IOPS write (4k random)...

New ZFS Build - Low IOPS

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