Colin Paice wrote: >These days disks are virtualized. I think the unit is the track. Two
>"adjacent" tracks from a data set perspective could be on different PC >sized disks in the disk subsystem. The "disks" are usually irrelevant >as the data is usually in cache! This gets humorous at times. Someone I knew was doing a FIPS certification. Part of the process is taking pictures of the hardware used. That meant that a FIPS certification lab person got to fly to their outsourcer location and take a picture of *a* z CEC and *a* disk array-nobody was really sure which system they were physically running on at that moment, and certainly not where the data was spinning! ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
