Experimental Physics and
Industrial Control System

If you type “cainfo <pv name>”, one of the fields it returns is “host”, which is often the server that the PV’s IOC is running on.

 

But sometimes the “host” is really a gateway server and not the IOC server itself. For example:

 

bsobhani@cagw02:~/code/scratch$ cainfo XF:03ID-CT{RG:C2}T-I

XF:03ID-CT{RG:C2}T-I

    State:            connected

    Host:             cagw01.cs.nsls2.local:5064

    Access:           read, no write

    Native data type: DBF_DOUBLE

    Request type:     DBR_DOUBLE

    Element count:    1

 

And then to find the real IOC server I would do “ssh cagw01.cs.nsls2.local” and then do “cainfo XF:03ID-CT{RG:C2}T-I” again, and I get:

 

bsobhani@cagw01:~/rack-cmd$ cainfo XF:03ID-CT{RG:C2}T-I

XF:03ID-CT{RG:C2}T-I

    State:            connected

    Host:             xf03idc-ioc2-313.nsls2.bnl.local:41317

    Access:           read, write

    Native data type: DBF_DOUBLE

    Request type:     DBR_DOUBLE

    Element count:    1

 

And now I have xf03idc-ioc2-313.nsls2.bnl.local, which is the real IOC server. Is there a way to find this IOC server without ssh?

 

Alex