jwcolby
jwcolby at colbyconsulting.com
Mon Sep 28 17:49:33 CDT 2009
Drew, > LOL, with this economy, funds are tight! Are you saying my funds request was denied? 8( I have 12 internal hard drives in there right now (plus one in an external container for backups). 2 are my raid one boot drive, 6 are a raid6 array for (2) two terabyte volumes - consisting of (6) one terabyte drives. Four are a raid5 array for log files and a local landing zone for backups. This is an internal 16 SATA port Areca card, with 2 gigs of cache RAM on the card (in a DIMM I provided). http://www.newegg.com/Product/Product.aspx?Item=N82E16816151007&cm_re=areca-_-16-151-007-_-Product I am running the AMD quad core Phenom X4. http://www.newegg.com/Product/Product.aspx?Item=N82E16819103471 All of the processor cache is internal to the chip and the level three cache is shared by all processors. That does not mean that it can't be thrashed by any one task, it certainly can. All processors share a memory controller, which is in fact a dual controller, 128 bit wide. These are not lightweight systems I have built. I don't have infinite funds, so I have purchased as carefully as I am able to maximize value. John W. Colby www.ColbyConsulting.com Drew Wutka wrote: > LOL, with this economy, funds are tight! Though if you are using a RAID > 6 with 4 drives, you are only going to lose about one drive of > space...to go to a RAID 10. > > This is with an external RAID controller, right, not something on the > motherboard? (If it's on the motherboard, that might be hogging the CPU > too). > > However, as far as duo and quad core processors.... we are kind of both > right. It depends on the actual design. > > http://en.wikipedia.org/wiki/Multi-core > > If you look down to about the middle of the page, there is a > 'Disadvantages' section...it mentions that some quad core designs are > two duo core dies on the same chip. Try running 2 processors on your > data stuff, see if that makes a difference (so it's only using one duo > core, if your processor was designed like that). > > Drew