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From Dennis Gearon <gear...@sbcglobal.net>
Subject Re: Hardware Specs Question
Date Fri, 03 Sep 2010 09:07:40 GMT
If you really want to see performance, try external DRAM disks. Whew! 800X faster than a disk.


Dennis Gearon

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--- On Thu, 9/2/10, Shawn Heisey <solr@elyograg.org> wrote:

> From: Shawn Heisey <solr@elyograg.org>
> Subject: Re: Hardware Specs Question
> To: solr-user@lucene.apache.org
> Date: Thursday, September 2, 2010, 6:45 PM
>  On 9/2/2010 2:54 AM, Toke Eskildsen
> wrote:
> > We've done a fair amount of experimentation in this
> area (1997-era SSDs
> > vs. two 15.000 RPM harddisks in RAID 1 vs. two 10.000
> RPM harddisks in
> > RAID 0). The harddisk setups never stood a chance for
> searching. With
> > current SSD's being faster than harddisks for writes
> too, they'll also
> > be better for index building, although not as
> impressive as for
> > searches. Old notes at http://wiki.statsbiblioteket.dk/summa/Hardware
> 
> How does it compare to six SATA drives in a Dell hardware
> RAID10?  That's what my VM hosts have, which each run
> three large shards and a couple of supporting systems.
> 
> 
> 

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