Quote Originally Posted by snogglethorpe View Post
Are these problems relevant for typical end-user systems, or just servers that need massive disk throughput?

My current system is I think SB700 based (Gigabyte GA-MA78GM-S2H), and it seems to have better SATA disk I/O performance than any other desktop system I've ever used (hdparm -t says around 120 MB/s, and disk-intensive operations also "feel" very fast)... in my case at least I suspect it's the disk that's the limiting factor.
If your not doing intensive write operations (multiple write operations at once) you probably won't notice it. It is very noticable when copying from one drive to another using multiple copy commands or doing items like building a large db.