Correction --
2 hours to read the whole disk.
1. It won't make a load take 12 hours unless we're talking a load that is in
> total, similar to the size of the disk. A slow, newer SATA drive will read
> and write at at ~50MB/sec at minimum, so the whole 320GB can be scanned at
> 3GB per minute. Thats ~ 5 hours. It is not likely that 20M records is over
> 20GB, and at that size there is no way the disk is the bottleneck.
>