Can B/T devices be supported on non-switched FICON links to Prizm, or is a FICON director required?
If the Bus/Tag devices are dedicated to a single LPAR, then they can be supported on dedicated (non-switched) FICON links to Prizm.
If the Bus/Tag or single path devices need to be switched between LPARs, then it depends on how many there are. In most cases it is preferable for Bus/Tag or single path ESCON devices that need to be independently switched between LPARs to be on their own FICON CHPID from the CEC. If the number of FICON CHPIDs required exceeds the number of Prizm FICON ports, then a FICON Director/Switch would be required to accommodate the necessary access.
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