On 2/11/2010 12:11 PM, Paul M. Dyer wrote: > Actually, Dell AMD sells a 6-way CPU. So, the CPUs can be 2-core, 4-core, > 6-core, 8-core. I am not sure, but I imagine the AMD CPUs are still at > better prices than Intel. > > Paul > > > ----- Original Message ----- > From: "Eric Rostetter"<rostet...@mail.utexas.edu> > To: linux-poweredge@dell.com > Sent: Wednesday, February 10, 2010 3:35:06 PM (GMT-0600) America/Chicago > Subject: Re: help configuring a db server > > Quoting "John G. Heim"<jh...@math.wisc.edu>: > > >> to go) and mysql. We have databases for spamassassin bayesian rules, >> drupal, moodle, imp (webmail), and our own private data. Our private data >> is pretty small with the biggest table containing under 10,000 records. We >> do have a table with about 4,00 PDF docs in a blob field. >> >> I think we can get a machine with a quad core, 32 Gb of RAM, and 300 Gb disk >> > Sounds fine to me. I recommend, when possible, a minimum of 1 CPU and 1 GB > memory per database. Since you mention 5 databases, that means 5 CPUs (cores) > and 5 GB memory minimum. Since you can't buy 5 cores, a single quad core > would be okay (a dual quad core even better). But your spec sounds fine > to me. > > >> for under $6000. But I'm confused about disk. I would think disk pspeed >> would be fairly important. How can I configure a machine with a fast disk? >> What are my options from Dell in that regard? >> > Get the fastest RAID controller you can and are comfortable with, and as many > of the fastest disks you can afford as you can fit in the machine. > > Since you want to stay under $6000, using SSD or FusionIO is probably out. > I would think (haven't verified) that you could buy 4 (or 5) 15K RPM SAS > drives in your price range, setup as a RAID 10. If not, try 10K RPM SAS > drives. If that fails, well, there is always SATA... > > I personally like to buy 7 drives: 2 RAID-1 for the OS, 4 RAID-10 for the > MySQL databases, and 1 hotspare. But, if you need to keep costs down, you > can dump the RAID 1 and just do 5 drives (RAID 10 plus hot-spare). > > You'd have to spec all that one Dell's web site to see if it comes in > under $6K. If not, just start dropping down until you hit your mark > (from 7 drives to 5, from 15K SAS to 10K SAS to SATA). > > Prices yes, performance and power usage..no AMD right now can only really compete on price.
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