To: bob@hobbes.dtcc.edu
Subject: Re: SUMMARY: Phantom disk activity
Reply-To: bern@uni-trier.de
> jeffw@smoe.org (Jeff Wasilko) gave me the first clue:
> > I seem to remember that for some reason Solaris 1.x puts serial
> > I/O into the disk category of the perfmeter....Perhaps that's
> > it?
> That was close, as it turned out, it IS something other than disk,
> but since I have nothing going on the serial ports that wasn't it.
Actually, Jeff *IS* right - Keyboard and Mouse *are* connected via
serial Interfaces, they just use different Connectors and are hard
coded into the OS. :-} From the zs(4s) Manpage:
Of the synopsis lines above, the line for zs0 specifies the
serial I/O port(s) provided by the CPU board, the line for
zs1 specifies the Video Board ports (which are used for key-
board and mouse), the lines for zs2 and zs3 specify the
first and second ports on the first SCSI board in a system,
and those for zs4 and zs5 specify the first and second ports
provided by the second SCSI board in a system, respectively.
That's why Keyboard Buffer Overruns result in a "zs1: Silo Overflow"
Error Message which is notoriously prone to mislead Sysadmins to
check their "non-stealth" serial Devices. :-/
Regards,
J. Bern
--
-- ---------------------------------------------------------------------------- |Bob Rahe, Delaware Tech&Comm Coll. / | |Computer Center, Dover, Delaware / | |Internet: bob@hobbes.dtcc.edu / | ----------------------------------------------------------------------------