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Full Discussion: lspath output interpretation
Operating Systems AIX lspath output interpretation Post 302601014 by kah00na on Wednesday 22nd of February 2012 05:00:48 PM
Old 02-22-2012
Have you always had each of your fibercards zoned to two different storage controllers? When we had dual fibercards and we had a one-to-one mapping between our fibercards and the storage controllers. Then we used MPIO to put the 2 paths (instead of 4) together. I didn't even know doing it the way you are was even possible.
 

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EHCI(4)                                                    BSD Kernel Interfaces Manual                                                    EHCI(4)

NAME
ehci -- USB Enhanced Host Controller driver SYNOPSIS
device ehci DESCRIPTION
The ehci driver provides support for the USB Enhanced Host Controller Interface, which is used by USB 2.0 controllers. EHCI controllers are peculiar in that they can only handle the USB 2.0 protocol. This means that they normally have one or more companion controllers (i.e., ohci(4) or uhci(4)) handling USB 1.x devices. Consequently each USB connector is electrically connected to two USB con- trollers. The handling of this is totally automatic, but can be noticed since USB 1.x and USB 2.0 devices plugged in to the same connector appear to connect to different USB busses. SEE ALSO
ohci(4), uhci(4), usb(4) HISTORY
The ehci device driver first appeared in FreeBSD 5.1. BUGS
The driver is not finished and is quite buggy. There is currently no support for isochronous transfers. BSD March 20, 2005 BSD
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