On Tuesday, 04/15/2008 at 01:55 EDT, David Kreuter <[EMAIL PROTECTED]> wrote: > In a zvm530 shop, last week we were testing this at a client. We simulated a > cable pull by forcibly DETaching a set RDEVs from the controller machine. Two > great things happened: > 1. it automatically recovered to the other set of devices (seemed to be like a > second or so) > 2. 1 minute later the DETached rdev came back as attached to the controller! > > So there is a 1 minute timer loop in vswitch processing lurking, always lurking.
A cable pull is not simulated by a DETACH of an RDEV from the controller. That's what you get if you forcibly remove the chpid from the LPAR configuration. There is no way to simulate a cable pull with an real OSA. With a virtual OSA (NIC), you UNCOUPLE the vdev from the VSWITCH or Guest LAN. The [virtual] device remains in place and sends a message to the host saying that the cable is unplugged, aka "Stop LAN". When you COUPLE it back in, the host gets a, you guessed it, "Start LAN". Alan Altmark z/VM Development IBM Endicott
