Re: 1 TB of memory

On Thu, Mar 16, 2006 at 10:44:25PM -0800, Luke Lonergan wrote:
> Jim,
>
> > PostgreSQL tuned to the max and still too slow? Database too big to
> > fit into memory? Here's the solution! http://www.superssd.com/
> > products/tera-ramsan/
>
> With a single 3 Gbyte/second infiniband connection to the device?
>
> 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.
>
> Plus - need more speed? Add 12 more servers, and you'd run at 12.8GB/s and
> have 96TB of disk to work with, and you'd *still* spend less on HW and SW
> than the SSD.

Now what happens as soon as you start doing random I/O? :)
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461