During the next couple of months I will start working on a new lease on a HP3000. One of the issues that always confronts me each time I do this is choosing the correct disk configuration. Our applications here are very IO intensive and require the best possible configuration. Currently our HP3k 939 has 7 2g Drives (14g total) spreading the load as best we can do using disk management software from Bradmark which has done a good job keeping the IO load fairly even between all drives. No real complains about performance with this configuration. The new disk configuration estimate right now will probably be increased to 20 to 25g. My question is with 9g drives available, 3 of these new drives will fulfill my needs, can I get the same IO performance as I do with 7 2g drives? Does having 6 4g drives produce more IO/sec (evenly Balanced) than 3 9g drives? With these high speed access drives does this issue even an issue anymore with the amount of caching done within the operating system? Does the number of physical spindles make a difference anymore with todays disk technology? Thanks in advance for your comments. Kimber Renk