For God's sake buy a mainframe! =o)
On 3/17/06, Michael Stone <mstone+postgres@mathom.us> wrote:
> On Thu, Mar 16, 2006 at 10:44:25PM -0800, Luke Lonergan wrote:
> >You'd be better off with 4 x $10K servers that do 800MB/s from disk each and
> >a Bizgres MPP - then you'd do 3.2GB/s (faster than the SSD) at a price 1/10
> >of the SSD, and you'd have 24TB of RAID5 disk under you.
>
> Except, of course, that your solution doesn't have a seek time of zero.
> That approach is great for applications that are limited by their
> sequential scan speed, not so good for applications with random access.
> At 3.2 GB/s it would still take over 5 minutes to seqscan a TB, so you'd
> probably want some indices--and you're not going to be getting 800MB/s
> per system doing random index scans from rotating disk (but you might
> with SSD). Try not to beat your product drum quite so loud...
>
> Mike Stone
>
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