[OmniOS-discuss] Slow write performance

[Matthew Lagoe]

I have a system that I am building, 2 x E5-2620 with 3 x LSI 9207-8e one
drive from each mirror plugged into one HBA, configuration is below

 

On reads I get about 653 MB/s (which is great) and writes 263 MB/s

 

A single drive gets around 120MB/s read and 90MB/s write and is a
ST3000NM0023 sas Seagate I would assume write performance should go up with
number of vdev's however it seems to only increase by ~60%.

 

Is this expected?

 

        NAME                       STATE     READ WRITE CKSUM

        tank                       ONLINE     0     0     0

          mirror-0                 ONLINE       0     0     0

            c4t5000C50057B946C7d0  ONLINE       0     0     0

            c4t5000C50057B9792Bd0  ONLINE       0     0     0

            c4t5000C50057BA72B3d0  ONLINE       0     0     0

          mirror-1                 ONLINE       0     0     0

            c4t5000C50057BA7F0Bd0  ONLINE       0     0     0

            c4t5000C50057BFA69Bd0  ONLINE       0     0     0

            c4t5000C50057C1A177d0  ONLINE       0     0     0

          mirror-2                 ONLINE       0     0     0

            c4t5000C50057C3CDF3d0  ONLINE       0     0     0

            c4t5000C5005815632Fd0  ONLINE       0     0     0

            c4t5000C5005815650Fd0  ONLINE       0     0     0

          mirror-3                 ONLINE       0     0     0

            c4t5000C5005817ECF7d0  ONLINE       0     0     0

            c4t5000C50058185583d0  ONLINE       0     0     0

            c4t5000C500581C8397d0  ONLINE       0     0     0

          mirror-4                 ONLINE       0     0     0

            c4t5000C500581CB967d0  ONLINE       0     0     0

            c4t5000C500581CD21Bd0  ONLINE       0     0     0

            c4t5000C500581F147Fd0  ONLINE       0     0     0

 

 

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