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ivanszky
Contributor
Contributor

Connecting via serial 2 virtual machines

Hi there,

I have two physical servers (w2k3 , sco UNIX) which are about to be converted to virtual machines (P2V). They are going to be hosted on an ESXi v5 host. Those 2 servers are connected via RS232 serial cable for communication (COM1 on windows, TTY on unix).

When the above 2 servers will be converted to virtual machines, what is the way the serial communication should be established?

I have tried setting up \\.\pipe\<pipe_name> on 2 other test vms but i don't seem to get it work

Any suggestions?

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4 Replies
satya1
Hot Shot
Hot Shot

ivanszky wrote:

Hi there,

I have two physical servers (w2k3 , sco UNIX) which are about to be converted to virtual machines (P2V). They are going to be hosted on an ESXi v5 host. Those 2 servers are connected via RS232 serial cable for communication (COM1 on windows, TTY on unix).

When the above 2 servers will be converted to virtual machines, what is the way the serial communication should be established?

I have tried setting up \\.\pipe\<pipe_name> on 2 other test vms but i don't seem to get it work

Any suggestions?

Have you tried simplest way  i.e through cross cable

Yours,

Satya

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ivanszky
Contributor
Contributor

That can't be physically achived since both virtual machines are residing on the same ESXi host

Option would probably be

name pipe (\\.\pipe\) notation

serial over IP

or something similar?

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continuum
Immortal
Immortal

never tried this on esxi

I would start with

VM 1:

serial0.present = "TRUE"
serial0.fileType = "pipe"
serial0.fileName = "\\.\pipe\com_1"
serial0.tryNoRxLoss = "TRUE"
serial0.pipe.endPoint = "server"

VM 2:


serial0.present = "TRUE"
serial0.fileType = "pipe"
serial0.fileName = "\\.\pipe\com_1"
serial0.tryNoRxLoss = "TRUE"
serial0.pipe.endPoint = "client"


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ivanszky
Contributor
Contributor

This was done the first place. However i just didn't know how would the apps work together, did i had to modify COM port settings (e.g. change to COM1) or do i need to add a new serial port in windows that hooks to the pipe? I have found just now an article mentioning that once the pipe is ready COM1 should be the pipe's end.

any comments?

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