Performance reduced from 60 to 10MB/s after switching Autotune on/off

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Makaveli6103

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Mar 18, 2012
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I just upgraded to 8.3 from 7.2 today. Initially I turned on Autotune and restarted it, was getting speeds around 60MB/s write. But once I restarting the system again the disks were spinning up and down constantly. I deleted all of the Tunables & Sysctls and disabled Autotune and was getting really slow speeds. So I re-enabled Autotune again with no problems with the disks spinning up/down, but am am only getting around 15MB/s writing....Why is this?
 
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