> Just curious, because I don't know how the hardware works, if > 30 mainframes do the work of 3,900 servers, that means 1 > mainframe does 130.
> Does that mean that potentially that 1 mainframe has the > equivalent of at least 130 network cards? I can see how most of > the hardware is virtualized, but the networking I don't quite > see, yet. How does that part work? Lindy: You can have up to 24 OSA-Express cards in a System z9 EC (each with 2 physical ports). Each port can have up to 640 TCP/IP stacks (Linux images). For more information see: http://www-03.ibm.com/systems/z/networking/features.html However, when running large numbers of Linux images, you normally run these under z/VM. z/VM has a built-in Ethernet switch (in software) so you can have the Linux images connect to one or more VSWITCHes which connect to the physical OSA-Express ports. Also, on the z9 family you can use a function call Link Aggregation to use multiple physical ports through the VSWITCH for performance and availability. For more information see: http://www.vm.ibm.com/virtualnetwork/ Jim ---------------------------------------------------------------------- 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
