Suns and BlackBox KVM ServSwitches

2007-12-25 9:30:00

Solution: Don't believe everything you read about multisync capabilities.

          Turns out the CTX VL700 is not as multisync-capable as one might

          think. A Sun VGA-type monitor, along with persistence in

          poweroff reconfiguration reboots, has gotten me to a state of

          a working KVM switch, for most values of working.

Thanks to all respondents.

On Tue, 23 Feb 1999, Todd Herr wrote:

> Greetings.

>

> I'm looking for anyone with any experience with the subject combination,

> especially with the BlackBox Multiplatform ServSwitch (model KV30xx),

> *not* the Multiplatform ServSwitch Ultra. I'm having an awful time

> getting this combination to work properly.

>

> My setup is as follows:

>

> 7 Suns, (1 IPX, 2 Sparc 10s, 2 Sparc 20s, and 2 Ultra 1s), running

> various incarnations of Solaris 2.5, 2.5.1, and 2.6

> 1 PC, running RedHat Linux 5.0

> BlackBox ServSwitch Model KV3012FA (12 port, multi-platform)

> Sun Keyboard

> CTX VL700 17" monitor

>

> My current situation:

>

> No video display on any machine except for the PC. All machines

> are up and network accessible. Keyboard does control switch

> functionality, such as changing ports, etc.

>

> When my adventure began on Sunday, I had 6 Suns and 1 PC (one Ultra 1

> was not in the configuration), along with a Sun keyboard and a Sun

> 21" monitor. At that time, I was getting display from two of the

> Suns (the Ultra and a Sparc 20), and that was all. Both of those Suns

> were the only two to boot into X (CDE); the others were command-line

> only. The PC display was not there.

>

> Next, I added the seventh Sun (second Ultra), and I lost video display

> from all eight machines.

>

> On Monday, I called Black Box, and was told that I needed to have a

> multi-sync monitor in my configuration in order to get any display

> from the PCs. I ordered a new cable to make this happen.

>

> On Tuesday (today), I received the new cable, and installed it and the

> CTX VL700, which appears to be multi-sync capable (see

> http://ctxcomputer.com/vl700.html). With this monitor, and the Sun

> keyboard, I'm now at the point of PC-only video.

>

> Things I've tried:

>

> Reconfiguration reboots on some of the Suns - no luck

> Power-cycling the switch - no luck

>

> Things I can't do till the weekend:

>

> Power-cycle the CPU farm

>

> My suspicions are that the various FrameBuffers are not recognizing

> the ServSwitch properly, but I'm not sure how to change that. Here's

> the output from ffbconfig -prconf on one of the Ultras:

>

> # ffbconfig -prconf

>

> --- Hardware Configuration for /dev/fbs/ffb0 ---

> Type: single-buffered FFB

> Board: rev 1

> PROM Information: Not Available

> FBC: version 0x1

> DAC: Brooktree 9068, version 4

> 3DRAM: Mitsubishi 1309, version 3

> EDID Data: Not Available

> Monitor Sense ID: 7 (Unknown monitor type, defaulting to Sun 19" monitor)

> Monitor possible resolution: 1152x900x66

> Current resolution setting: 1152x900x66

>

> If anyone out there has had any luck with this configuration, or one

> similar to it, please advise.

>

> Thanks in advance; will summarize.

>

>


--
Todd Herr todd_herr@sra.com
Unix Systems Administrator, SRA International. http://www.sra.com

Statistics show that 40% of absenteeism occurs on Mondays or Fridays.

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