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Ziglo
Contributor
Contributor

Vmware Serial Port limit

Hello

Hello
I need to add 8 serial port in a ESXI 5.0 but when I try to add the number 5, this message appear "the maximum number of devices of this type has been reached"
How can I solved this limitation?

Thanks in advance

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6 Replies
weinstein5
Immortal
Immortal

Welcome to the Community - per the configuration maximums http://www.vmware.com/pdf/vsphere5/r51/vsphere-51-configuration-maximums.pdf a VM can only have 4 serial ports.

What are you trying to accomplish - perhaps you can look at a IP based serial hub as a possible solution -

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admin
Immortal
Immortal

Hi ,

The Maximum Number of serial ports supported on a VM on ESXi 5.0 is 4.

Please refer to the document below

http://www.vmware.com/pdf/vsphere5/r50/vsphere-50-configuration-maximums.pdf

Thanks,
Avinash

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ScreamingSilenc

Check this article http://communities.vmware.com/thread/323333

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Ziglo
Contributor
Contributor

Hello

Thank you for the answer

we need connect with 8 thin client to this virtual machine through Remote Desktop. Each
of this Thin client have serial port and we need mapping first ThinClient serial
por in server Com1, second ThinClient serial port in server Com2.... and so on

For example, If the serial port Com5 is not exist in windows, we can´t  execute this command

 

net
use com5 \\tsclient\com1

Regards

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weinstein5
Immortal
Immortal

I think this might solve your problem - http://www.digi.com/products/serialservers/connectportlts - allowing you to have multiple serial ports in the OS without having to add mutltiple virtual serial ports to the vm

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albert_field
Contributor
Contributor

The VMware virtual BIOS can address two serial ports by default, but allows up to four COM ports total

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=100246...

Map the virtual machine's COM port assignments to the COM ports on the host. Edit the .VMX  file for the virtual machine, and add the following lines:

serial0.present = "TRUE"
serial0.fileName = "COM1"
serial0.startConnected = "TRUE"
serial0.irq = 4
serial0.baseAddr = 0x3f8

serial1.present = "TRUE"
serial1.fileName = "COM2"
serial1.startConnected = "TRUE"
serial1.irq = 3
serial1.baseAddr = 0x2f8

serial2.present = "TRUE"
serial2.fileName = "COM3"
serial2.startConnected = "TRUE"
serial2.irq = 4
serial2.baseAddr = 0x3e8

serial3.present = "TRUE"
serial3.fileName = "COM4"
serial3.startConnected = "TRUE"
serial3.irq = 3
serial3.baseAddr = 0x2e8




------------------------------------

Awavo serial port monitor

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