OT - KVM Switch

I don't know anything about the Belkin units, but Wayne's right, you
definitely need to get a KVM that has the emulation electronics for PS2
interfaces. We have an NTI Universal 8 port KVM. We've used it with SCO
UNIX, LINUX and Windows Server 2003 with hardware from several vendors and
have never had any problems. It was expensive, but completely plug&play and
hassle free. NTI had responsive and knowledgeable sales staff when we
ordered it too. You can find out more at http://www.nti1.com/

Good Luck!

Dan Snyder
IT Manager
Mercury Electronics
717-428-0222 ext.224



-----Original Message-----
From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf Of
Wayne
Sent: Tuesday, June 06, 2006 1:36 PM
To: vantage@yahoogroups.com
Subject: Re: [Vantage] Re: OT - KVM Switch

Susan Iverson wrote:
> Speaking of KVM. We just setup servers on a KVM this weekend and I'm
> having one heck of a time getting all the servers to come up. I called

What OS and they running and how are the K&M interfaced?

Older machines with PS/2 connectors are finicky, because the K/M have to be
plugged in at boot time, or even at power-up (not just reset) on some
machines. To work right, you need a relatively expensive KVM with
"emulation" electronics in it, so the computer thinks there is always a
keyboard / mouse attached. A plain passive switch-box won't cut it.

There are usually bios settings that may prevent booting, eg: "Halt on:
All Errors / All BUT Keyboard & Mouse" etc. Other settings control how
resources are allocated (IRQs and whatnot) for the old-style PS/2 devices.
And other settings affect USB input devices, possibly disabling the USB
functions if no devices are attached at boot time.

USB is a BUNCH easier. If you're all USB, look to disable the "legacy"
(I hate that expression) PS/2 ports, don't halt on boot errors, enable USB,
and possibly USB keyboard emulation.

-Wayne Cox
Twenty Three, Inc. -- Information Technology Consulting
828-685-2338
Can anyone recommend a 6 port or larger KVM switch with USB? I
was looking at the Port Authority2 4-port USB and PS 2 KVM
Switch, but I need at least 6 ports.



Any insight would be great.



Thanks,



Norman Hutchins Jr.

Network Administrator



Howell Laboratories, Inc.



'We need not to be let alone. We need to be really bothered once
in a while. How long is it since you were really bothered? About
something important, about something real?' --Ray Bradbury (1920
- ), Fahrenheit 451, 1953



[Non-text portions of this message have been removed]
Norman Hutchins wrote:
> Can anyone recommend a 6 port or larger KVM switch with USB? I
> was looking at the Port Authority2 4-port USB and PS 2 KVM
> Switch, but I need at least 6 ports.

I bought a four-port "IO Gear" brand KVM switch a couple months ago that
has worked well. Bought from Dell for $125 with cables, then found out
NewEgg.com had it for only $90. IO Gear makes larger ones, of course.

It is used with FreeBSD and Linux servers, which can bee less tolerant
of USB KVMs than windoze boxes. The brand was recommended on mailing
lists for both flavors of unix. This one doesn't have any fancy
keyboard or mouse emulation. It's basically the same as having the KB &
mouse plugged into a USB hub, and plugging the hub into the desired
server. The operating system sees the devices dis- and re-appear as you
switch, but seems to have a delay built in so if you skip from #1 to #4,
#2 and #3 don't see it.

-Wayne Cox
Twenty Three, Inc. -- Information Technology Consulting
828-685-2338
> Can anyone recommend a 6 port or larger KVM switch with USB? I
> was looking at the Port Authority2 4-port USB and PS 2 KVM
> Switch, but I need at least 6 ports.

We just bought a Belkin Pro series Omniview KVM. We have been using
those for many years now with no problems. The new model we bought has
PS/2 and USB ports.
Speaking of KVM. We just setup servers on a KVM this weekend and I'm
having one heck of a time getting all the servers to come up. I called
tech support and they said "move the cables around", "turn the servers
off and reseat the connections", etc. Blah! Why aren't these things PnP?
Very irritating. So tonight I will be staying late to turn them all off,
unplug them, reseat the connections, turn them back on and see what the
results are. I've already rebooted servers, rebooted the KVM and cursed
- nothing works ;o)



We have a fairly new Belkin Omniview F1DE216C and you'd think it would
be easier than this for over $1,000 investment. Servers that worked
yesterday suddenly disappear today. Is it a bad unit? It seems like the
older KVM we have at another site works great.



Do any of you know any tips that will work the first time?



Sue



-----Original Message-----
From: vantage@yahoogroups.com [mailto:vantage@yahoogroups.com] On Behalf
Of brian_boyes
Sent: Tuesday, June 06, 2006 10:09 AM
To: vantage@yahoogroups.com
Subject: [Vantage] Re: OT - KVM Switch



> Can anyone recommend a 6 port or larger KVM switch with USB? I
> was looking at the Port Authority2 4-port USB and PS 2 KVM
> Switch, but I need at least 6 ports.

We just bought a Belkin Pro series Omniview KVM. We have been using
those for many years now with no problems. The new model we bought has
PS/2 and USB ports.





[Non-text portions of this message have been removed]
Susan Iverson wrote:
> Speaking of KVM. We just setup servers on a KVM this weekend and I'm
> having one heck of a time getting all the servers to come up. I called

What OS and they running and how are the K&M interfaced?

Older machines with PS/2 connectors are finicky, because the K/M have to
be plugged in at boot time, or even at power-up (not just reset) on some
machines. To work right, you need a relatively expensive KVM with
"emulation" electronics in it, so the computer thinks there is always a
keyboard / mouse attached. A plain passive switch-box won't cut it.

There are usually bios settings that may prevent booting, eg: "Halt on:
All Errors / All BUT Keyboard & Mouse" etc. Other settings control how
resources are allocated (IRQs and whatnot) for the old-style PS/2
devices. And other settings affect USB input devices, possibly
disabling the USB functions if no devices are attached at boot time.

USB is a BUNCH easier. If you're all USB, look to disable the "legacy"
(I hate that expression) PS/2 ports, don't halt on boot errors, enable
USB, and possibly USB keyboard emulation.

-Wayne Cox
Twenty Three, Inc. -- Information Technology Consulting
828-685-2338