[BBLISA] Fwd: Re: Fileserver opinion

Edward Ned Harvey bblisa4 at nedharvey.com
Thu Aug 26 20:48:49 EDT 2010


> From: bblisa-bounces at bblisa.org [mailto:bblisa-bounces at bblisa.org] On
> Behalf Of John Stoffel
> 
> Ian> 24 GB RAM
> 
> Seems like overkill for a file server, because you don't want to cache
> that much of your data in RAM unless you have a rock solid UPS, etc.

Disagree.

In opensolaris, the kernel will only buffer maximum 30sec of writes, which
is a few G.  It will also only buffer a maximum 50% of system memory ... so
at least 16G is advisable.  The rest of the ram is used for cache to
accelerate reads.  So the more memory the merrier.



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