Pieter Harder wrote:
there are a number of sources that indicate that FCP attached DASD performs better than classic ECKD DASD. My own numbers seem to confirm this. But I am wondering what exactly is the advantage that FCP has over ECKD?
The major difference can be found on the protocol level. FCP is a queueing protocol that allows to submit more I/O while the device is processing. The same effect can be archived by doing PAV with FICON devices. Carsten thinks, that both protocols are equally fast enough for not being a bottleneck when set up proper.
cheers, Carsten -- Carsten Otte has stopped smoking: Ich habe in 3 Monate, 2 Wochen und 3 Tage schon 527,27 Euro gespart anstatt 2.196,97 Zigaretten zu kaufen. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
