uneaven transfers on proliant miniserver

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mactsk

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Sep 12, 2012
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I built a freenas 8.2 on a proliant miniserver, upgraded with 8gb ram
the hard drives are a mix (i know i know:p) of a 2x1tb 1x1.5tb and 1x2tb in a zraid1 the total available space is about 3tb.
now the strange things... transferring (via afs from the mac to the nas) a file that is 3gb results in a transfer rate between 70 megabyes/s and 50 megabytes/s in a sawtooth pattern with sometimes big depressed zones at 30 megabytes/s.
Transfer rate from the nas to the mac in astonishing, the same 3gb file downloads almost steadly betwwen 100 and 110 megabytes/s!!!
also, the nas sometimes gets unresponsive when opening a folder and freezes for 3-4 secs

any idea?
what can i improve?

Tnx
Fabrizio
 

cyberjock

Inactive Account
Joined
Mar 25, 2012
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19,526
Search the forums for "ZFS breathing". That should explain what you are seeing.
 
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