Hello, I'm confused about the number of logical devices address by a Ficon channel: 1) On "Ficon Implementation Guide" it's stated that "The Ficon implementation allows up to 16,384 device addresses per Ficon channel" so 64 Logical Control Units. 2) On "Ficon Native Implementation and Reference Guide" chapter "2.2.1 Point-to-Point configuration" it's stated: "A maximum of one link can be attached to the channel in a point-to-point configuration. The maximum number of control unit images that are supported by the FICON architecture over the FC link to Control Unit is 256, therefore the maximum number of devices that can be addressed over a channel path configured point-to-point is equal to 256 times 256, or 65,536."
Maybe I'm not understanding it correctly, but why on 1) máx CTRL UNIT is 64 and on 2) is 256 ??? Does DS8000 and other storage vendors like HDS with USP support 256 ctrl units?? Many thx, Antonio Cecilio. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
