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ARC stats questions/problems thread

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redbull666

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Dec 2, 2016
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To answer this post: https://forums.freenas.org/index.php?threads/what-are-your-arc-statistics.28122/page-9#post-330834 from @redbull666

Yes, the fact you only have 64 GB (wait: you said 64 GB but the stats show 32 GB, there's a problem somewhere...) of RAM for a 400 TB pool (that's a big pool BTW... :)) and your stats aren't exactly the best in the world tell me you definitely have some margin for improvement ;)

Are you maxed out on the RAM on this server?
384GB or 768GB, have to check if we're using RDIMM or LRDIMM actually...:oops:

The 32GB was ARC budgetted at that time, have actually increased that to 48GB recently. Considering the machine is doing more than managing the ZFS storage.
 

Bidule0hm

Server Electronics Sorcerer
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Aug 5, 2013
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3,710
Well, if you can put more RAM then the answer is simple: put more RAM, something like 128 GB should be a good start :)
 
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